ROOFING FLORIDA - September 2015

A Publication of the FRSA ◆ Florida’s Association of Roofing Professionals

Energy Conservation: Beyond Consumer Rebates Liening for SpeciallyFabricated Materials Challenges of Selecting Metal Roof Fasteners Metal Roof Paint Warranties We Don’t Need No Stinkin’ Drip Edge?

September 2015

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Challenges of Selecting Metal Roof Fasteners

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Liening for Specially-Fabricated Materials

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Energy Conservation: Beyond Consumer Rebates

Metal Roof Paint Warranties

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Staying on Track for a Winning Future

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We Don’t Need No Stinkin’ Drip Edge?

A SS

Now Available Online at www.floridaroof.com/roofing-florida-magazine

A Publication of the FRSA ◆ Florida’s Association of Roofing Professionals

On the iPad

FRSA Executive Director, Lisa Pate, CEM ◆ Editor

For display advertising inquiries and all feedback including Letters to the Editor and reprint permission requests (please include your full name, city and state) contact Lisa Pate at: lisapate@floridaroof.com (800) 767-3772 ext. 157 RFM, PO Box 4850 Winter Park, FL 32793-4850 View media kit at: www.floridaroof.com/roofing-florida-magazine

Any material submitted for publication in ROOFING FLORIDA becomes the property of the publication. Statements of fact and opinion are the responsibility of the author(s) alone and do not imply an opinion or endorsement on the part of the officers or the membership of FRSA. No part of this publication may be reproduced or transmitted in any form or by any means, without permission from the publisher.

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ROOFING FLORIDA (VOL. 6, NO. 9), September 2015, (ISSN 0191-4618) is published monthly by FRSA, 7071 University Boulevard, Winter Park, FL 32792. Periodicals Postage paid at Orlando, FL. POSTMASTER: Please send address corrections (form 3579) to ROOFING FLORIDA, PO Box 4850, Winter Park, FL 32793-4850.

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ROOFING Florida

September 2015

Donnie Harp ◆ President’s Column

Staying on Track for a Winning Future During the September 2013 Board and Committee meetings, FRSA re-established the Unlicensed Activity Taskforce in an effort to educate contractors and consumers and to battle unlicensed activity.

This taskforce has been active on and off over the years addressing many of the same issues time and time again: how to deal with the unlicensed contractor.

With easier navigation and access to the Internet, FRSA President Donnie Harp contractors have become Imperial Roofing of Polk more sophisticated and are County – Winter Haven finding ways to lure consumers into purchasing a new roof. Residential contactors have been blanketing neighborhoods offering “free roofs” for signing over their insurance rights. And, a personal favorite of mine, the Internet companies that broker roof contracts. It used to be that our main unlicensed competition was employees who would reroof on weekends and guys who worked out of their trunks; not anymore.

Unfortunately, most home owners don’t know that they must have a licensed roofing contractor install their new roof and that a general contractor can’t reroof. As licensed roofing professionals, it’s our job to educate the public about the dangers of hiring unlicensed contractors. The Members Only section of the FRSA website, www.floridaroof.com, contains many documents that members can use when providing bids to homeowners. Consumers need to know that the “best price” doesn’t necessarily mean the best job.

Workers’ Compensation At the end of August, the Unlicensed Activity Taskforce met with Andrew Sabolic, Assistant Director of Florida’s Division of Workers’ Comp (DWC). Andrew reviewed the purpose of the Division, employer compliance, laws that govern workers’ comp, investigative processes and penalties assessed. It was a good meeting and gave the committee other avenues for dealing with unlicensed activity. The DWC website, www.myfloridacfo.com, offers links for reporting unlicensed activity (which can be done anonymously) and the Construction Policy Tracking database – a useful tool when tracking workers’ comp insurance for subs.

As a reminder, roofing contractors cannot subcontract work unless it’s to another licensed roofing contractor. If you do subcontract work, be sure you receive a Certificate of Insurance or exemption form from your subs and verify the information. If you hire a subcontractor, independent contractor or casual laborer that does not have coverage, they automatically become your responsibility and you are

obligated for their workers’ comp. Contractors who have an exemption status cannot have employees unless they have workers’ comp coverage. Years of participation in the FRSA Self Insurers Fund has taught me well!

Looking Ahead The FRSA-PAC golf tournament takes place on Friday, September 25 at ChampionsGate Golf Club in conjunction with the Fall Board of Directors and Committee meetings.

This is the annual fund raising event for the FRSA Political Action Committee and money raised helps us support Florida legislative members who support our industry. The tournament is open to everyone so get a group together.

If you aren’t able to golf but would still like to support the PAC, we’ve got sponsorship opportunities starting at $200.

If you’re interested, call Lisa Pate at FRSA at 800-767-3772 ext. 157. She’ll get you set up.

My theme for this year is “Staying on Track for a Winning Future,” and as you can probably guess, a race car will be involved. More importantly, I want to build on FRSA Immediate Past President Burt Logan’s theme. FRSA has taken the lead on many fronts in the past few years, including codes and regulatory, education, the Convention and Expo, and workers’ comp. My goal is to continue to build on our strong foundation. We will continue to represent FRSA members and fight for stability in workers’ comp rates again this October in Tallahassee: the National Council on Compensation Insurance (NCCI), has proposed a nine percent increase in the roofing rate.

Affiliate Council participation is up and I look forward to visiting many of our affiliates early next year to promote the 94th Annual Convention and Expo, taking place in Orlando, June 16-18, 2016.

Finally, I’d like to remind everyone that September is National Disaster Preparedness month. I know we all get caught up in day-to-day business and it doesn’t seem like there’s enough time to accomplish everything as it is, but when a disaster strikes we need to make sure our family, employees and businesses are safe. Take the time to set up a basic disaster plan. FRSA members can do this quickly and easily by referencing documents in the disaster preparedness section of the FRSA website, Members Only section. You’ll find simple-to-complex plans that you can download and make your own.

My thanks to the membership and Board of Directors for entrusting me as FRSA President – I look forward to serving you.

Regards,

Donnie Harp FRSA President president@floridaroof.com

www.floridaroof.com

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Cam Fentriss ◆ FRSA Legislative Counsel

Energy Conservation: Beyond Consumer Rebates At the moment, we hear very little about energy conservation, presumably because it is not a trendy topic. But that does not mean it all disappeared. Most conservation requirements that were adopted when it was last a hot topic are still in place and have a considerable impact on design and construction in Florida.

With promotion of energy conservation fading into the background, it seems that utility companies are taking advantage of this by trying to scale back obligations imposed on them for “demand side management” (or “DSM”) that is defined as offering incentives to make changes to reduce the demand for energy. In some ways that is opportunistic, but in other ways it makes sense because there is only so much that can be done to motivate people through a governmentmandated program.

One of the types of incentives believed to have outlived its usefulness (according to some utility companies) is solar. I could not say whether that opinion applies to all types of solar, but it appears utility companies find use of demand side management incentives for solar costs much more than it saves in use or cost of energy.

The decline of DSM is not good for business in the roofing world, but it does not have to be the end of the world. Whether or not the utility company kicks in a rebate, a customer should be able to understand the immediate value of meaningful reductions in utility bills if the smart choice is made when it is time to reroof.

Just because the utility companies are trying to ditch DSM during this lull in energy conservation activity does not mean customers do not benefit from lower bills (and a newer roof). Now is a good time to reevaluate the remaining benefits for customers and look for ways to get the

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September 2015

message out so that people will know there are more reasons than a rebate to include energy savings in choosing the best new roof. They need to be told that their roof is an important part of the energy bill reduction equation. They need to be given some examples of percentages of savings in monthly utility bills. It is crucial to illustrate for them that, for example, a $1,000 rebate today is worth less than $1,200 savings on the utility bill each year for 10 years.

I appreciate that “should” be able to understand is different from actually understanding, and I also appreciate that many people will do anything for an immediate rebate or coupon even when the better deal is to spend a little money to save a lot of money over the life of the roof. I also appreciate that it is harder to convince someone of expected savings in the future versus a known amount for a rebate or coupon right now. Even with that, the customer needs to be thinking about the utility bill savings with roofing and a little advertising to make sure roofing is on their home improvement radar should go a long way.

–RFM– Anna Cam Fentriss is an attorney licensed in Florida since 1988 representing clients with legislative and state agency interests. Cam has represented FRSA since 1993, is an Honorary Member of FRSA, recipient of the FRSA President’s Award in 2002 and received the Campanella Award in 2010. She is a member of the Florida Building Commission Special Occupancy Technical Advisory Committee, President of Building A Safer Florida Inc. and past Construction Coalition Chair (1995-1997).

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Liening for Specially-Fabricated Materials Specially-fabricated materials are defined as those materials which are created specifically for a project and cannot be reused or restocked on any other project. The material which most often falls within this category is sheet metal work, which involves specific dimensions. Often, non-uniform sheet metal manufacturing may occur on specific projects and can include specially-fabricated vent stacks, panels, attic vents, flashing, etc. If these materials were created in such a way as to fit that specific project and cannot be readily reused on any other project, then a roofer can lien for those items, even if they have not been brought to the job site or incorporated into the project.

In order to lien for those materials, the owner must have refused possession and/or refused to pay for them. In other words, the reason that the specially-fabricated materials were not incorporated into the project must be a result of the customer’s acts or omissions and not the roofer’s. When liening for specially-fabricated materials, the lienor must specifically state in the lien which materials are deemed specially-fabricated. Using the most conservative approach possible, the first day of work and last day of work for purposes of a lien are the first and last day that the specially-fabricated materials are created.

When a customer cancels or Over 65 Million Square Feet terminates a contract, it is always Installed Since 1991. difficult for the roofer to recover its out-of-pocket expenses. However, if there were specially-fabricated materials involved, this exception to the general rule in lien law may allow the roofer to record a lien in an effort to get paid.

Author’s note: The information contained in this article is for general educational information only. This information does not constitute legal advice, is not intended to constitute legal advice, nor should it be relied upon as legal advice for your specific factual pattern or situation.

Trent Cotney is Florida Bar Certified in Construction Law, General Counsel and a director of the Florida Roofing & Sheet Metal Contractors Association (FRSA), a director of the West Coast Roofing Contractors Association Meet us in Tampa, FL (WCRCA), and a member of the Booth 1312 National Roofing Contractors October 14-16 Association (NRCA).

Most of the roofing materials used on a project are not specially-fabricated, meaning that they can be readily used on other projects or restocked with a material supplier.

However, there are certain instances where a roofer has to pay for or manufacture materials specifically for a project. Normally, a roofing contractor has the ability to lien for any labor, materials or services incorporated into a project. There is an exception to this general rule that involves speciallyfabricated materials, which allows a roofing contractor to lien for those items, even if they are not incorporated into the project.

There is a difference between specially-ordered materials and specially-fabricated materials. Specially-ordered materials are materials which are not available at the supply house and must be specially ordered in order to satisfy a customer’s request. Common examples include specific color tile or coatings. Although these items may be specially-ordered, they are not considered to be specially-manufactured because it is possible that the items could be used on other projects or restocked.

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Challenges of Selecting Metal Roof Fasteners

By Scott Kriner, Technical Director of the Metal Construction Association Profiled (or Exposed Fastener) metal roof panels rely upon mechanical fasteners to secure the components to a structure, according to a Metal Construction Association technical bulletin. It is very important to select the correct type of fastener for metal roofing systems in order to ensure a strong and weather-tight attachment. This article is not intended to address Concealed Fasteners, for example, standing seam metal roof panels.

Fasteners are either primary or secondary in nature.

Primary fasteners are used to transfer loads from one design element to another. These loads can be dead, design, imposed and wind loads. Where used externally, these fasteners must provide a weather-tight seal under all load conditions and comply with Florida Building Code requirements. Local codes address wind load requirements and fastener spacing among other requirements. Fasteners are also often required to be coated or colored in some way to match the material they are securing.

There are many different types of fasteners. These fastener types include “self-drilling,” “self-tapping,” or both.

Self-drilling (SD) screws have a drill point in the tip of the fastener. Self-tapping (ST) screws do not have a drill point, but are able to tap their own threads into the attachment material. Self-piercing (SP) screws “pierce” through light gauge metals then self-tap (ST) into the material below.

For example, type A, B or AB screws are self-tapping.

The fasteners commonly used for attaching to light gage framing are self-drilling self-tapping screws (SDST). These threaded fasteners have the ability to drill their own hole and form their own internal mating threads. Another type of tapping screw can be “self-piercing” which has the ability to pierce metallic material 33 mils (0.033 inch) or less in thickness and tap their own mating threads when driven.

Self-piercing tapping screws have a sharp point angle not more than 30-degrees and are often used to secure metal panels to wood substrates. Under normal conditions, these fasteners do not require pre-drilling.

Florida Code It is important that the installed metal roof system comply with Florida Building Code, and be installed in accordance with the panel manufacturer’s recommended installation procedures; especially relative to fastening patterns and locations (typically across the panel). While it is critical that the attachments meet the minimum requirements for pull-out, pull-over and shear resistance, also adhering to the manufacturer’s specified fastening pattern is essential.

Proper fastener selection and installation at panel sidelaps is critical to ensure a weathertight seal and to complete the shear diaphragm of the structure (if so designed). Lastly, it is important to consider corrosion resistance. In coastal, industrial and other marine environments, 300-Series

Fastener Standards Specifications in the Project Manual typically call for material standards. Still, as a contractor it is a good test for knowing you are selecting quality fasteners and other materials when you can locate one or more of the following standards setting organizations on the label or data sheet: ♦♦Aluminum Association; ♦♦American Institute of Steel Construction; ♦♦American Iron and Steel Institute (AISI); ♦♦ASTM International; ♦♦Industrial Fasteners Institute (IFI); ♦♦Society of Automotive Engineers (SAE); and ♦♦United Thread Standard (UTS).

www.floridaroof.com

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stainless steel fasteners should be considered for ultimate corrosion protection. If the fasteners corrode, especially where relatively small surface areas of threads engage in the attachment material, the potential for roof blow-off increases dramatically.

Fasteners and Substrates The use of underlayment materials rarely impacts selection and performance of fasteners used to attach exposed fastener metal roof panels. However, it should be noted that fasteners used to hold underlayments in place prior to panel installation should be selected to properly seal around the underlayment as well as not protruding (or telegraphing) up through the metal panel where aesthetic concerns and/or detrimental panel performance may be experienced.

Additionally, it’s always a good idea to consult with the panel manufacturer to determine if a separator sheet (e.g. rosin slip sheet) is required between the top side of the underlayment and the bottom side of the metal roof panel.

Preservative-Treated Lumber Applications Preservative-treated lumber can be incompatible with certain types of fasteners. In those cases where any type of metal roof or wall cladding materials are being attached to preservative treated lumber, the following fasteners are not compatible: zinc plated screws, zinc-alloy headed screws, stainless capped screws, and aluminum. When attaching metal panels to preservative-treated lumber, a moisture barrier may be used between the lumber and the panel material.

Metal panel fasteners that are compatible with preservative-treated lumber are stainless steel fasteners, or hot dip galvanized nails manufactured to ASTM A153 Class D or heavier. Other types of fasteners coated with proprietary anti-corrosive technologies are also available for use with preservative-treated lumber. ♦♦Copper Fasteners may be used with preservative treated wood as allowed by code. ♦♦If panels are coated on both sides, a moisture barrier may not be needed. ♦♦Zinc plated fasteners and bolts should not be used with any preservative treated wood.

This is especially true with waterborne treatments.

Secondary Fasteners Secondary fasteners must maintain a secure attachment.

They can be used to provide lateral resistance such as part of a diaphragm. They are typically used for stitching of sidewall and roofing laps or securing flashing or other components to sheeting. These types of fasteners are often used with sealants or washers to draw the joint tight. Secondary fasteners may be coated or colored to match the surrounding material.

Example of these types of fasteners may be self-drilling or self-tapping screws or rivet type products.

Fastener Longevity Any type of fastener must be designed to be as durable as the metal roof cladding system itself. Fasteners are available in a variety of substrates and materials with different levels of corrosion resistance and/or durability when exposed to the harsh conditions of weather for years. The metal roof 12

ROOFING Florida

September 2015

manufacturers can provide specific recommendations for selecting fasteners for a specific system.

Fasteners Matching A potential risk to the integrity and aesthetics of a building exists when the wrong type of fastener is used with a metal roof or wall cladding system. Under certain conditions, premature corrosion of the metal panel and/or fastener may occur. This effect is known as galvanic corrosion and is often the result of corrosion between the dissimilar metals that are in contact with each other. The environment in which the fasteners will be installed needs to be considered when selecting fasteners, including the relative surface area of the contact points as well as the acidity of the rainfall within the climate zone.

To prevent dissimilar metal corrosion at the connection point, fasteners should be made of the same material as the roof or wall systems whenever possible. At the very least the fastener should display equivalent corrosion resistance to the material being fastened into. As an example, the use of galvanized steel fastener with aluminum metal wall cladding systems is not recommended.

To assist designers and installers with the selection of proper fastener types, the table on the following page was developed by the Metal Construction Association to serve as a guideline for compatibility with different types of materials. The intent of the table is to show equivalent corrosion resistance between the fasteners and cladding material.

Hydrogen Embrittlement Hydrogen embrittlement is a complex topic but it is certainly worth mentioning because it can have a tremendous impact on fastener performance. Hydrogen is the most abundant element on Earth and it is the smallest of atoms – yet it can cause sudden failure of high strength metals used to manufacture fasteners without any warning. In the case of fasteners, hydrogen can be introduced into a grain structure of a metal fastener during manufacturing operations such as plating. Once a load is applied to the fastener, the hydrogen will migrate to the point of stress and the pressure created by doing so has the ability to propagate a crack until failure occurs. The potential for this type of failure can be greatly reduced by properly “baking” fasteners after the plating process to release any hydrogen previously trapped inside its molecular structure.

Certain environmental conditions, such as general or galvanic corrosion, can also introduce hydrogen atoms into a fastener causing Hydrogen Assisted Stress Corrosion Cracking. Corrosion that occurs at points of high stress can also permit hydrogen to migrate into the grain structure for the metal. Once this occurs, and as mentioned above, a crack may develop and cause sudden failure without warning. This type of failure is best controlled by ensuring fully compatible materials for: the fastener material, the material being held in place and the material of the structure.

No matter how the hydrogen finds its way into the molecular structure of a fastener, catastrophic failure can occur when a load is applied to the part and the hydrogen atoms are released thus either causing a crack or propagating an existing crack in the metal.

Recommended Fastener Guide Fastener Material Organic ZincCoated Alloy Stainless Copper 300 400 Head Head Aluminum & Series Series Steel Steel Screws & Copper Stainless Stainless Screws Screws Rivets Alloys Steel Steel

Zinc Plated Steel Screws

Organic Coated Plated Steel Screws

Hot-Dip Galvanized Steel Nails

Unpainted Galvanized Steel

Yes

Yes

Yes

Yes

Yes

Yes

No

Yes

Yes

Painted Galvanized Steel

Yes

Yes

Yes

Yes

Yes

Yes

No

Yes

Yes

Unpainted Galvalume Steel

No

Yes

No

Yes

Yes

Yes

No

Yes

Yes

Painted Galvalume Steel

No

Yes

Yes

Yes

Yes

Yes

No

Yes

Yes

Metal Roof or Wall Cladding Material

Aluminum

No

Yes

No

Yes

Yes

Yes

No

Yes

No

Uncoated Copper & Copper Alloys

No

No

No

No

No

No

Yes

Yes

No

300 Stainless Steel

No

No

No

Yes

Yes

No

No

Yes

Yes

Zinc Sheet

No

No

No

No

No

No

No

Yes

No

Fastener Compatibility Table The performance of compatible fasteners in the table matches the predicted life cycle of the metal roof or wall cladding materials. In highly corrosive environments, however, such as heavy industrial, coastal marine (within 1,500 feet from a salt water body), high levels of airborne pollutants, preservative treated lumber or fire-retardant lumber, the compatibility of certain fasteners with metal roofing or wall cladding materials may be affected. When selecting fasteners, corrosive sources on the inside of the building or for buildings where the interior is also exposed to exterior environmental conditions must be taken into consideration.

Consult the manufacturer of the fastener and the metal panel for their specific recommendations. There is also an increased potential for premature corrosion, in the event that certain coatings barriers are damaged or scratched through the substrate. Care should be taken during installation and during scheduled maintenance of the panels in order to protect the integrity of the coatings used on the metal panels.

The table shows recommendations based on various cladding material and fastener combinations. Whenever a cladding material is painted, the guidance in the table is based on the assumption that the fastener will also be painted.

face-attached profiles) to facilitate the attachment of rooftop ancillaries such as service walkways, solar collectors, snow retention devices and other roof accessories. Seam clamps pinch the seam by some mechanical means, but without penetrating the seam material. In such applications, aluminum, clamps are suitable for use with all cladding types tabled with the exception of “Copper and Copper Alloys,” provided that accompanying hardware is 300 series stainless steel.

Stainless setscrews or other nodes that engage the cladding material should have rounded tips as not to abrade metallic coatings on steel, or cause fracture pints to other metals listed. Sharp edges or points on fasteners or clamps engaging the seam should be avoided.

Specialty brackets for use on face-attached cladding profiles when constructed of aluminum are suitable for use with all cladding types with the exception of “Copper and Copper Alloys.” Screws or bolts that attach these brackets should be selected in accordance with the guide table.

–RFM– Note: Portions of this article first appeared in: Technical Bulletin: Fastener Compatibility with Profiled Metal Roof and Wall Panels from the Metal Construction Association.

Seam Clamps and Brackets It is common practice to utilize aluminum seam clamps (for standing seam profiles) and specialty brackets (for

www.floridaroof.com

13

Metal Roof Paint Warranties

By Brian Partyka, President, Drexel Metals Corp.

Warranties are intended to be a safe haven, a guarantee of the integrity of a product. Manufacturers offer several types of warranties for pre-painted metal roofing systems, but what do these warranties really cover? This question may not be easy to answer, especially when the roofing

product is exposed to a harsh saltwater environment.

One area of confusion is the difference between a paint warranty and the substrate corrosion warranty. When it comes to paint warranties, corrosion of the metal substrate due to salt exposure is generally not covered.

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Knowing the Risks One of the most important aspects of our business is making sure a product that is chosen won’t fail in its built environment. For contractors, that means installing a product that minimizes the need for return visits to make repairs. For architects, that means the contractor installs the system per the project specifications, and everyone is completely satisfied with the results.

Five years later, the contractor receives a phone call from the distraught homeowner, who claims that corrosion is occurring at the eaves and creeping its way up the roof.

Assuming that the product is covered against this type of condition under the manufacturer’s warranty, the contractor calls the supplier fully expecting the manufacturer to replace the roof. However, the contractor doesn’t realize that due to the corrosive coastal environment to which the roof is exposed, the pre-painted product is not covered under the warranty.

Choosing or specifying the right product begins with knowledge and understanding of how the roof system will react and perform in a certain environment. The substrate of a prepainted steel roofing product is either Galvalume or hot-dipped galvanized carbon steel. Hot-dipped galvanized steel offers the sacrificial protection of zinc. Galvalume, which is aluminum/ zinc alloy-coated carbon steel, provides the superior barrier corrosion resistance of aluminum along with the sacrificial protection of zinc.

Pretreatments, primers, and paint complete the painted steel product.

During fabrication, transport, handling and installation of the painted roof panel, shearing the edge or scratching the surface will disrupt the original system put into place to protect the carbon steel. The panel’s defenses have been weakened, and the product may begin to corrode—especially once it’s exposed to a corrosive environment. At the cut edge or scratch, the metallic coating’s ability to create the appropriate galvanic reaction has been somewhat compromised. This reaction has little to do with the performance of the paint. However, the paint can actually retard the desirable chemical response of the zinc to form the appropriate galvanic protection.

Caveats of Paint Warranties So what is covered by a paint warranty? Many paint companies underwrite their warranties with certain distance restrictions to salt or other aggressive environments. (The metallic coating warranty, especially for Galvalume sheet, in like fashion will exclude harsh environments like salt-spray.) A standard paint warranty typically covers the following areas:

EM_Rule_HP-FRSA.qxp

♦♦Chalking. Chalking, or the decomposed powdery residue that forms on the surface of most painted surfaces with the passage of time, is allowed under typical paint warranties. The permissible amount of this residue varies with the type of paint and the specific language of the warranty. Once again, it is designated numerically.

A paint warranty does not cover corrosion of the base metal in a saltwater or aggressive environment. When selling a metal roof system always remind yourself that paint doesn’t rust and think about the core of the product and how it will perform in 20 years.

9/1/15 9:49 AM Page 1

The EXCEPTION to the rule.

It’s a well-known rule: more than half of the problems on a flat roof will start at perimeters and edges because of an ill-fitting or poorly performing edge metal or flashing.

We’re the exception to the rule. EXCEPTIONAL® Metals, a division of Duro-Last®, manufactures high-quality ES-1 compliant metal products for single-ply roof systems. Designed to provide a secure, watertight fit, EXCEPTIONAL Metals roof accessories, metal edge products, gutters, pitch pans and coping are manufactured with the performance of the entire rooftop in mind.

♦♦Film integrity. This warrants that the paint is not going to crack, flake, or delaminate from the surface of the substrate in “normal” atmospheric conditions. It does not include “microfracturing” on the radii that can occur during roll forming and there may be limitations of the severity of the bend radius. Saltwater as well as other aggressive environments are excluded. ♦♦Color fade. This states that the paint will not change color (fade) to excess as defined by the warranty language using a numeric range of color units. However, it does not warrant against painted surfaces fading at all, or fading uniformly when exposed to different conditions, such as facing a different direction or shaded vs. unshaded.

Are you looking for higher-quality edge metals ... and fewer failures? Contact us, and we’ll help make your roof exceptional.

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EXCEPTIONAL roofs require EXCEPTIONAL details

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15

Preventive Measures Homeowners or building owners who want to install a pre-painted steel roof in a coastal area can take some preventive measures to avoid or minimize corrosion. A periodic fresh water rinse is recommended for all roof areas, including soffit, that aren’t exposed to rainfall.

Although this step can help prevent rust, it may not eliminate the problem. Any areas of the roof that have been

scratched or cut during installation or fabrication can be touched up with a field-applied coating recommended by the manufacturer of the paint system used on the panels. Painted steel products for roofing applications are becoming more commonplace, and this trend is expected to continue for many years. In most environments, painted steel roof systems are extremely durable and will provide many years of maintenancefree service.

In aggressive environments, however, it’s important to understand how the product will react and how to ensure the best performance. Contractors installing pre-painted steel roof panels should be proactive and have the manufacturer or supplier write a disclaimer stating exactly what is covered under the warranty. This disclaimer should be included in the bid.

As a manufacturer, our number one goal is to ensure

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16

ROOFING Florida

September 2015

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our products will perform in their installed environment protecting the building owners investment, architect’s design, our installer and selfishly us. This is one of the main reasons why we offer a wide variety of metal roof substrates, paint systems and engineered metal roofing systems.

Keep in mind your Galvalume substrate warranty becomes null and void when your product is installed within areas subject to salt-water marine atmospheres or to repeated spraying of either salt or fresh water: ♦♦In order for a warranty to be effective in environments with a salt atmosphere or relative to bodies of salt water the following distances should be adhered to: 1. Application in proximity to a coastline, with surf, the distance from the coast must be at a minimum of 2,800 feet.

2. Application in proximity to a large Bay the distance must be at a minimum of 1,200 feet.

3. Application in proximity to Marshes and Canals the distance must be at a minimum of 600 feet.

To summarize, painted aluminum in coastal environments are worth the additional investment and will save the owner the cost of a replacement in years to come.

There’s a great quote that goes like this: “Honesty is the fastest way to prevent a mistake from turning into a failure” and although a metal roof is the most durable and long lasting roofing system on the market today, it is important to understand the risks in corrosive environments to prevent failures.

–RFM–

Brian Partyka is the President of Drexel Metals, a national supplier of metal roofing systems to both the commercial and residential market segments. Brian has been well received in years past as he has led the very popular “Understanding Substrates and Paints” seminar at Metalcon as well as other speaking arrangements. Partyka is Board Member of the MCA, chairs the Statistic Committee and co-chairs the Codes and Standard Committees. He can be reached at bpartyka@drexmet.com.

♦♦Highly Recommended: Pre-Painted Kynar/Hylar system applied over an aluminum substrate. ♦♦Not Recommended: Even though there is no warranty, Mill Finished Galvalume is preferred over painted Galvalume or Galvanized ♦♦Not Recommended: Pre-painted Galvalume or Galvanized

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Ask you supplier for care and maintenance guidelines and provide this along with your warranty in your close out packet.

Here is a quick reference when installing your metal roof systems in Coastal Environments:

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♦♦Your supplier will be happy to write a letter explaining your coverage pertaining any questionable location.

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♦♦Get Site Specific: When in doubt, ask your supplier. Don’t guess to try to close the deal!

407-704-7631

6340 All American Blvd.

Orlando, FL 32810 facebook.com/JonesSheetmetal www.floridaroof.com

17

REACHING NEW HORIZONS IN ROOFING

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During the online registration process, enter ADG when prompted to enter a discount code.

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FRSA-SIF 2014 Safety Awards

During FRSA’s 93 Annual Convention and Expo, the Self Insurers Fund awarded Outstanding Safety Awards to four member companies. In order to qualify for the award, member companies must exhibit and practice a commitment to safety and loss control and prevention.

Here are the 2014 winners: rd

Frank’s Roofing & Spraying, Incorporated The 2014 Outstanding Safety Achievement Award for the West Coast of Florida district goes to Charles and Amie Dampier, owners of Frank’s Roofing & Spraying, Inc. located in Fort Myers.

Charles and Amie are third generation roofing contractors serving the commercial and residential markets of Southwest Florida. Charles’ grandfather, Floyd, originally started his company, Dampier Roofing, in 1955 and his father Frank, joined the company in the late 1950’s.

Ten years later Frank started his own company and Floyd joined him when Dampier Roofing closed. Charles worked for his father throughout his career and purchased the company, with Amie, in 2005 to continue the family tradition in roofing.

The company has been a member of the FRSA Self Insurers Fund since 2007 and has seen steady growth in their business each year. Safety is a main priority for Charles and Amie which has led to a very good safety record over the years. The company holds weekly safety meetings with all their employees and each job is personally checked by the owners to ensure compliance with the company’s safety policies.

We congratulate Charles, Amie and all the employees of Frank’s Roofing & Spraying for a great job on safety and wish them continued success with their business.

Gustafson Industries The 2014 Outstanding Safety Achievement Award for the South Florida District goes to Mike Gustafson, President of Gustafson Industries in Boynton Beach. Mike’s experience and passion for the industry is the driving force behind Gustafson Industries’ excellent reputation, growth, and success.

Mike is a second generation roofer who started his own business in 1986. He began with no employees and a few subcontractors who did all the actual work. Shortly

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thereafter he hired his own roofers and since then has grown into one of the most elite roofing companies in South Florida.

The success of Gustafson Industries would not be possible without Mike’s continued commitment and dedication towards workplace safety. Through his proactive safety program, Mike has established means for the control and prevention of loss thus giving him an outstanding loss history record that has earned him this esteemed award. We congratulate Mike and his staff and crews on this prestigious safety award!

Steppi Roofing The 2014 Outstanding Safety Achievement Award for Central Florida goes to Steppi Roofing. Al and Mary Steppi have run Steppi Roofing since 1984 and they are a great team. Al has said that safety and quality are his primary focus, stating, “If you don’t do quality work, you might just as well stay home.”

They believe that you must be professional, practice good housekeeping, and make sure it is done right. They have many seasoned employees that know how to provide quality workmanship and service for their clients.

There are not many roads you can travel down in Winter Park or Orlando where you will not pass at least one or two roofs installed by Steppi Roofing, who has

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www.RKHydroVac.com 20

ROOFING Florida

Continued on page 26 September 2015

We Don’t Need No Stinkin’ Drip Edge?

Mark Zehnal, CPRC, FRSA Director of Technical Services Recently I was asked this question regarding metal roof panel assemblies: Can a steel painted or Galvalume roof assembly including eave drip be fabricated out of the same gage material?

Why do we even need eave drip, can’t the shingles hang over the edge of the sheathing instead? That question was asked during an International Code Council (ICC) code development meeting I attended on behalf of the FRSA. I found it kind of amazing that an ICC code development committee member sitting on the dais, who was a building official, would even ask that question. The question was directed to the code modification proponent who submitted an option to the installation of ice-damming protection which would require the enhancement of eave drip attachment installed over the underlayment at the edges of

asphalt shingle roof systems.

After I recovered from the shock of what was just asked I was compelled to step to the microphone in support of the proponent’s position. I reminded or maybe informed those in attendance that eave drip serves purposes other than just a trim piece to direct water off the roof. Come to think of it, I believe I was the only one who spoke in support of the proposed code modification option. It seemed most of those in attendance were influenced or driven by installation procedures outside of high wind areas and more interested in ice-damming at the edges of roof lines as a major source of failure.

Asphalt shingle roofing is a large part of the Florida residential market and I’ve always had a hard time accepting ice-damming attaching the eave drip to the wood deck,

TABLE 1507.4.3(1) – METAL ROOF COVERINGS ROOF ROOF COVERING TYPE

STANDARD APPLICATION RATE/THICKNESS

STANDARD

Aluminum

ASTM B 209

0.024 inch minimum thickness for roll-formed panels and 0.019 inch minimum thickness for press-formed shingles.

Aluminum-zinc coated steel

ASTM A 792

0.013 inch minimum thickness, AZ 50 (coated minimum application rate)

Cold-rolled copper

ASTM B 370

Minimum 16 oz/sq. ft. and 12 oz./sq. ft. high yield copper for metal-sheet roof covering systems: 12 oz/sq. ft. for preformed metal shingle systems.

Copper

ASTM B 370

16 oz./sq. ft. for metal-sheet roof-covering systems; 12 oz./sq. ft. for preformed metal shingle systems.

Galvanized steel

ASTM A 653

0.013 inch minimum thickness,G-90 zinccoateda.

Hard lead

-

2 lbs./sq. ft.

Lead-coated copper

ASTM B 101

-

Prepainted steel

ASTM A 755

-

Soft lead Stainless steel Steel

3 lbs./sq. ft.

ASTM A 240 ASTM A 924/ ASTM A 924M

Terne and terne-coated stainless

Zinc

300 Series Alloys -

-

Terne coating of 40 lbs. per double base box, field painted where applicable in accordance with manufacturer’s installation instructions.

-

0.027 inch minimum thickness; 99.995% electrolytic high grade zinc with alloy additives of copper (0.08% - 0.20%), titanium (0.07% 0.12%) and aluminum (0.015%).

For SI: 1 ounce per square foot = 0.0026 kg/m2, For 1 pound per square foot = 4.882 kg/m2, 1 inch = 25.4 mm, 1 pound = 0.454 kg. a. For Group U buildings, the minimum coating thickness for ASTM A 653 galvanized steel roofing shall be G-60.

allowing the unsecured underlayment to be held in place by gravity. Eave drip has become a nice decorative piece, hiding the edge of the sheathing, and leaving nothing to hold the shingles or underlayment in place in a high wind event.

As we have seen here in Florida during high wind events the edge detail is a key component to the success or failure of a roof assembly. At the eave, the ability of a roof assembly

to withstand the onslaught of turbulent wind and damaging debris impact can be directly attributed to the gage and attachment of the metal. Investigations I was involved with and others I have read about from the 2004 hurricane season revealed that failure of roof edge metal was a contributing factor to the beginning of, or part of, many low and steep slope roof systems failing. I do want to add that the

TABLE R903.2.1 – METAL FLASHING MATERIAL GAGE MINIMUM THICKNESS (INCHES)

MATERIAL

GAGE

WEIGHT (lbs per sq ft)

Copper

0.024

1 (16 oz)

Aluminum

0.024

Stainless steel

28

Galvanized steel

0.0179

26 – (zinc coated G90)

26 – (zinc coated G90)

Aluminum zinc coated steel

0.0179

26 – (AZ50 alumzinc)

26 – (AZ50 alum zinc)

Zinc alloy

0.027

Lead

2.5 (40 oz)

Painted terne

1.25 (20 oz)

TABLE 905.4.4 – METAL ROOF COVERINGS ROOF COVERING TYPE

STANDARD

STANDARD APPLICATION RATE/THICKNESS

Aluminum

ASTM B 209

0.024-inch minimum thickness for roll-formed panels and 0.019-inch minimum thickness for press-formed shingles

Aluminum-zinc coated steel

ASTM A 792

0.013-inch minimum thickness, AZ 50 (coated minimum application rate)

Cold-rolled copper

ASTM B 370

Minimum 16 oz./sq. ft. and 12 oz./sq. ft. high yield copper for metal-sheet roof covering systems: 12 oz./sq. ft. for preformed metal shingle systems

Copper

ASTM B 370

16 oz./sq. ft. for metal-sheet roof-covering systems; 12 oz./sq. ft. for preformed metal shingle systems.

Galvanized steel

ASTM A 653

0.013-inch minimum thickness, G-90 zinc-coateda

Hard lead

-

2 lbs./sq. ft.

Lead-coated copper

ASTM B 101

-

Prepainted steel

ASTM A 755

0.0142 inch minimum thickness

Soft lead Stainless steel Steel

ASTM A 240 ASTM A 924/ ASTM A 924M

3 lbs./sq. ft.

300 Series alloys -

Terne and terne-coated stainless

-

Terne coating of 40 lbs. per double base box, field painted where applicable in accordance with manufacturer’s installation instructions

Zinc

-

0.027 inch minimum thickness; 99.995% electrolytic high grade zinc with alloy additives of copper (0.08% - 0.20%), titanium (0.07% - 0.12%) and aluminum (0.015%)

For SI: 1 ounce per square foot = 0.0026 kg/m2, 1 pound per square foot = 4.882 kg/m2, 1 inch = 25.4 mm, 1 pound = 0.454 kg. a. For Group U buildings, the minimum coating thickness for ASTM A 653 galvanized steel roofing shall be G.

TABLE 1503.2 – METAL FLASHING MATERIAL MINIMUM THICKNESS (INCHES)

MATERIAL

WEIGHT (LBS PER SQ FT)

GAGE

Copper

1 (16 oz)

Aluminum

0.024

Stainless Steel

28

Galvanized Steel

0.0179

26 (zinc coated G90)

Aluminum Zinc Coated Steel

0.0179

26 (AZ50 Alum Zinc)

Zinc Alloy

0.027

Lead

2.5 (40 oz)

Painted Terne

1.25 (20 oz)

roof systems installed after the advent of the Florida Building Code generally seemed to have performed at a higher level.

This could possibly be attributed to the implementation of the product approval system, enhanced fastening requirements and newer materials.

There are prescriptive code minimum requirements for roof edge metal no matter what type of system is being installed. The 2014 Florida Building Code Fifth Edition has tables located in both the Building (chapter 15) and Residential (chapter 9) volumes that give guidance in this area (see tables above). Each roofing assembly product approval provides instructions for the installation of the system and where to locate that information.

Some assemblies provide specific installation procedures in the product approval information found on the Florida Department of Business and Professional Regulation (DBPR), Building Code Information System (BCIS) website. Sometimes this information can be hard to locate, so be patient.

There are other code approved options in addition to the chapter 15 and 9 tables to meet compliance found in the 2014 Florida Building Code Fifth Edition. ANSI/SPRI ES-1 or RAS 111 are listed as standards that can be used for the design and installation of roofing edge metal.

I believe the answer to the original question can be found in the chapter 15 and 9 tables. The minimum gage of flashing for steel painted or Galvalume is 0.0179 or 26 gage.

The minimum gage for steel painted or Galvalume roof covering is 0.013 or 29 gage. If the steel painted or Galvalume roof assembly including eave drip is a minimum 26 gage the answer to the question is yes. However, if the steel painted or Galvalume roof covering is 29 gage the table is clear that the flashing metal minimum is 26 gage.

FRSA members can always contact our office for assistance and answers to technical questions.

–RFM–

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been a member of FRSA and insured with the FRSA Self Insurers Fund for the past 12 years and are enjoying all the benefits of membership. Best wishes for continued success and congratulations on your 2014 Outstanding Safety Award!

Sheet Metal Masters Inc. The 2014 FRSA Self Insurers Fund North Florida Safety Award Winner is Sheet Masters, Inc. of Pensacola, FL. Billy Cockrell, Owner and President of Sheet Metal Masters, Inc., has been dedicated to safety for many years. They have proudly been a member of the FRSA Self Insurers

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Fund, as well as the FRSA since 2003, and contribute much of their success to the support they have received from their SIF safety reps. He considers being a part of the Fund a huge benefit for his insurance, but also all of the experienced knowledge that comes with his membership.

Billy has been using the help offered to him from the FRSA Self Insurers Fund for some of his safety meetings, site inspections, and interpretations of the many OSHA regulations that all roofers face on a daily basis.

They hold weekly safety meetings in their shop, and feel they have a commitment from their employees. Billy understands that safety is not a necessary evil, but a benefit to his company.

Like most owners, he knows that “If you don’t cut corners you will be rewarded with quality and safety.”

–RFM–

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