WCRA #5 Residential Roof

System Cover Sheet #5 Residential Roof Washing

All County Window Cleaning 5 – A – Home Inspections

preexisting damage condition of gutters proximity of plants Type of siding Windows shut Condition of skylights Condition of roof Downspout location

5 – B-­‐ Job Site optimization

Hose placement Weather conditions Ladder placement

5 – C – washing roofs

Setting up the machine Mixing solution Various styles of roofs Plant treatment Pest treatment

Support Documentation

System

Pre-­‐Existing Damage

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All County Window Cleaning

1

After meeting with the customer, walk around the house to visually inspect for any damage already existing.

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Inform manager/customer of damage before starting work.

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Desired Result: Avoid Customer Damage Complaints

System

Condition of Gutters

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All County Window Cleaning

After meeting with the customer, walk around the house to visually inspect for any damage already existing.

2

During the initial inspection note any areas that do not have gutters. These areas of the roof cannot be cleaned.

Also inspect any damage to the gutters that might result in an overflow of the chemical.

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Use a ladder to inspect the condition of the inside of the gutters. The gutters must be clean and downspouts unclogged before the roof cleaning. If the gutters need to be cleaned estimate the added price and inform the customer of the change.

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Desired Result: Avoid overflows of chemical out of the gutters

System

Proximity of Plants

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All County Window Cleaning

1

During the initial house inspection, note where all plants are and where the most vulnerable plants are.

2

Move any potted plants away from the work area.

Cover any plants that are especially vulnerable with a tarp.

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Desired Result: avoid damage to plants

System

Type of Siding

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All County Window Cleaning

1

During the initial house inspection, note the type(s) of siding on the house.

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Note any sun-­‐faded areas of siding. These areas are especially vulnerable to the chemicals used and will need to be rinsed immediately before and after the chemical hits it.

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Desired Result: avoid damage to siding

System

Windows Shut

Packet

All County Window Cleaning

1

During the initial house inspection, note any windows that are open and ask the customer to close them before work starts.

2

During the roof cleaning, check that windows are still closed. Stop work if a window has been opened.

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Desired Result: avoid damage from chemical getting inside the house

System

Condition of Skylights

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All County Window Cleaning

1

During the initial house inspection, note the condition of the skylights.

2

Determine the best way to avoid getting chemical on them if possible.

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Desired Result: avoid damage to Skylights

System

Condition of Roof

Packet

All County Window Cleaning

1

During the initial house inspection, note the condition each section of roof. Which parts will need the most attention and maybe more chemical?

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Desired Result: determine dirtiest parts of roof

System

Downspout Location

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All County Window Cleaning

During the initial house inspection, note the locations of every downspout and where it goes.

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Any open downspout that does not go into the ground should have a bag tied around it securely with duct tape.

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If the downspout goes to a drain in the ground find out where the drain leads to and tie a bag around it. Ask the customer if he/she knows where they lead to if you are not able to locate them.

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All run-­‐off should be contained in a bag.

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Desired Result: avoid chemical runoff from downspouts

System

Hose Placement

Packet

All County Window Cleaning

After doing the initial house inspection, find the water spigot locations and test each of them.

2

Run a garden hose from the closest water spigot to the tank in the truck. This will be used to fill the rest of the tank up with water.

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If there are multiple water spigots, attach hoses to those as well. Every area around the house needs to be easily reachable with a hose in order to rinse any overspray of chemical.

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Desired Result: Efficient Hose Placement

System

Weather Conditions

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All County Window Cleaning

1

Note wind direction and speed at each job. When spraying chemical, wind will carry the chemical to places not intended. Be extra careful when buildings, cars, people, etc. are nearby.

Wind can also limit how high and where you can reach with the water and chemical.

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If it is raining, the roof wash cannot be done. The chemical should have at least ten minutes to sit on the roof to be affective. This can be longer depending on the condition of the roof and the organisms on it.

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Desired Result: Optimize House Roof Wash

System

Ladder Placement

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All County Window Cleaning

1

During the initial house inspection, note what size ladders will be needed where. It will make the job easier to have the ladders set up ahead of time if possible.

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Also note each place where you will need a ladder to reach certain areas of a roof. For example, if there is a chimney coming through a section a ladder will need to be placed to the left to get the left side and to the right to get the right side.

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Desired Result: Optimize Ladder Placement

System

Setting Up the Machine

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All County Window Cleaning

Roll out the yellow chemical hose in a straight line from the truck so that it snakes back and forth from the truck until you have enough to reach the furthest end of the house.

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Check battery connections and other electrical connections for any shorts or reasons that it wouldn’t work properly.

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Place the clear siphon hose into the tank and make sure it is held to the bottom of the tank to avoid sucking air. Do not run the pump without a liquid going through it. The pump can burn up.

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Turn the switch on.

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Before getting on the ladder to start spraying the roof, you need to “start” the chemical through the hose by spraying for a few seconds into a bucket or back into the tank.

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Desired Result: Optimize Machine Set-­‐Up

System

Mixing Solution

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All County Window Cleaning

Before setting up the machine, you need to mix the solution.

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The 60 gallon tank should have about 25 to 30 gallons of sodium hypochlorite (bleach) in it to start a full tank.

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In an extra 5 gallon bucket put about six handfuls of simple cherry and mix with water from the garden hose. Dump this into the tank using an orange cone as a funnel.

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Then add a 6 count of dish soap directly to the tank and fill the rest of the way with water.

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If a full 60 gallon tank is not needed here are some equations to help with reducing the ratios: Bleach / .4 = Total Mix Total Mix x .4 = Bleach needed 1 handful of simple cherry per 10 gallons of mix 1 count of dish soap per 10 gallons of mix

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Desired Result: Optimize Solution Mix

System

Various Styles of Roofs

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All County Window Cleaning

There are multiple roof styles on houses. The following are basic roof styles. They do not account for other complexities that often occur on a roof including dormers, skylights, chimneys, etc.

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Gable Roof (most common): usually requires to sprayed from only two sides and can be done from two ladder positions if it’s small enough

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Gambrel Roof: similar to a gable roof but has two slopes on each side instead of one. This sometimes involves a taller ladder and may need to have to top placed directly on a part of the roof in order to get the upper section.

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Hip Roof: will need to be done from four ladder positions minimum, since it has slopes on all four sides.

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Mansard Roof: similar to a hip roof, except there is no ridge (peak)

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Shed Roof: has only one sloped section and can be done from one ladder position if small enough

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Flat Roof: this roof is flat or almost flat. Pay attention to where the drains are in the roof and where they go.

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Desired Result: Clean Most Roof Styles

System

Plant Treatment

Packet

All County Window Cleaning

Rinse all plants down before the application of any chemical.

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Rinse all plants down continuously during the application of the chemicals.

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For delicate plants, use a tarp to cover them during the application of the chemical. Rinse the tarp off before removing it. See Delicate Plants procedure for more information.

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Move any potted plants away from the house.

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Desired Result: avoid damage to plants

System

Pest Treatment

Packet

All County Window Cleaning

The entire area of each roof section should be sprayed with the chemical, unless the work order calls for only certain sections of roof to be done.

Pests may not be easily visible on the whole roof, but if they are growing in one area, they usually have at least spores in another area. These spores can re-­‐infect the roof if they are not treated as well.

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Areas with heavy growth may need multiple applications of the chemical to kill it. Areas with lighter growth conversely should need less chemical.

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Within minutes of the chemical application, most of the organisms (lichen & moss) should start turning white. This means they are dead. They will eventually turn brown. If certain areas are not turning white, reapply the chemical in those areas.

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The only organism that doesn’t turn white from the application of the chemical is gloecaspa magma (black streaks). This will turn brown only. This is usually the hardest to kill. Pay extra attention to these areas and spray them multiple times. If they aren’t brown by the time you get done spraying the rest of the roof, re-­‐spray them. They didn’t die during the first application.

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Desired Result: Kill all organisms on the roof