WORK SPECIFICATION VIA WINDOWS & DOORS COMPANY
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Contents
1. Introduction…………………………………………………………………………………………………………..2 2. Extent…………………………………………………………………………………………………………………….2 2.1 General…………………………………………………………………………………………………….2 2.2 Building components………………………………………………………………………………..2 2.3 Design………………………………………………………………………………………………………3 2.4 Building site……………………………………………………………………………………………..3 2.5 External environment……………………………………………………………………………….4 2.6 Quality control………………………………………………………………………………………….4 2.7 General additional information…………………………………………………………….....4 2.8 Quality documentation…………………………………………………………………………….4 2.9 Operation and maintenance documentation……………………………………………5 2.10 Planning and construction………………………………………………………………………5 2.11 Work documents……………………………………………………………………………………5 2.12 Tests……………………………………………………………………………………………………….5 3. General specification 3.1 References……………………………………………………………………………………………….5 3.2 Codes and standards………………………………………………………………………………..6 3.3 General guidline and specifications………………………………………………………….6 3.4 Materials and products…………………………………………………………………………….6 3.5 Control……………………………………………………………………………………………………..6 3.6 Relation to the other contracts………………………………………………………………..7 3.7 Health and safety……………………………………………………………………………………..7 4. Building components specification 4.1 Extent and location…………………………………………………………………………………..7 4.2 Design……………………………………………………………………………………………………...7 4.3 Materials and products…………………………………………………………………………….7 4.4 Surfaces and finishes, tests………………………………………………………………………7 4.5 Control…………………………………………………………………………………………………….8 4.6 Health and safety……………………………………………………………………………………..8
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1. Introduction This is work specification of Concrete Trade focuses on concrete façade elements and describes the execution of their construction.
2. Extent 2.1 General The contract consists of design, production, delivery and erection concrete façade elements. It is crucial that the delivery is in accordance to BIPS 113. The manufacturing company should provide all necessary equipment and machinery needed to finalize the project. This contract includes quality control in production and quality inspection on the site. 2.2 Building components All the building components must meet all regulations, fire demands and uvalue requirements. All work should be performed according to work specification and drawings. All concrete façade elements should be at least with similar (or better) properties as the ones from Spæncom company. They should also fulfill a uvalue of 0,20 W/m2K (both sandwich elements and concrete elements together with the insulation and 2 layers of plasterboard fixed on the site) and fire requirements – R120 (elements of north, south and west elevations) and REI120 (elements of east elevation). External surface of the concrete façade elements must be made as it is proposed by Graphic Concrete™ company (GC Collection™, Mode Collection, Piksel). Following components are included into the work:
North façade: 5 types of elements South façade: 5 types of elements East façade: 3 types of elements West façade: 5 types of elements
For more details see Summary drawings AN-14(205-01)001, AN-14(20501)002 and Concrete external wall elements plan AN-11(205-01)1.
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2.3 Design The contractor has to have approved drawings of the elements and element plan from the building technician at least 15 days before production begins. All materials made by contraction – drawings, calculations etc. must be sent to the building technician. The calculations must be approved by an authorized statistician. Materials will be approved or disapproved at least 5 days after being received. 2.4 Building site Delivery The schedule of all dates when certain elements will be delivered to the building site, mounted and properly finished must be provided by the contractor. It should be handed in to technician no later than two weeks before construction starts. The schedule of delivery must be accepted by all involved trades. Any changes within the reasonable limits should be possible to make, nevertheless, the involved trades should be informed about it no later than one week before the construction begins. The elements should be mounted directly from truck equipped with a crane. It is the contractors responsibility to prevent/repair all damage (production defects, weather) until the elements have their final cover finished. Access conditions: The contractor is responsible for providing proper access to the site. The delivery trucks and other vehicles/machinery involved into the project have to have easy access/ to the construction and the turning should be fostered. The access must be provided through main building site gates on a smooth and stable soil and the parking spaces with same or better conditions must be prepared. 3
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For detailed information look at the Building Site Plan. Storage & mounting elements To prevent any damage risk all elements must be storage properly. The sufficient time for quality inspection must be also provided. The decision about damage of certain element will be made by technician/building site manager who will also decide if the failure can be fixed on the site or if the element should be replaced. In order to replacing the defected element the person responsible for removing and replacing it is contractor. All replaced and fixed elements will be again controlled by technician/building site manager mentioned above who can decide about removing particular elements if the repair did not fulfill the demands. Weather precaution It is in contractor’s best interest to secure properly all materials and equipment during bad weather conditions, because he is the one responsible for any damages or difficulties caused by weather conditions. Any damages cause to the elements while bad weather conditions as well as while delivery will not be accepted. Health and safety All the activities on the building site must fallow the “Danish Health & Safety at Work Act�. 2.5 External environment All information are given in Case Specification. 2.6 Quality control The contractor is in charge of making quality check while production phase. The building technician/the building site manager will independently carry out the quality inspection. 2.7 General additional information All the elements should have their own identification number (used in all calculations, drawings, plans etc.) to make the communication easier and smoother between all trades involved. The BIPS system according to the drawing and plans from material list. 2.8 Quality documentation The quality documentation contains: 4
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Control of the quality of materials Control of the quality of mounting materials and components Control of the quality of the execution work Final control of the work
2.9 Operation and maintenance documentation The contractor provides building owner and the building technician with proper documentation concerning maintenance and operation for future use and reference. 2.10 Planning and construction work The contractor is responsible for the design of the elements considering all necessary issues concerning elements like strength, lit, transport, mounting and bracing. The contractor should find a way to cast in pipes for electricity and such. Delivery of mounting plan is requested in order to making inspection by the building technician. Mounting must not begin before the contractors receive comments from the building technician. Temporary supports and bracing structure must be constructed so the elements are mounted safely and non of the equipment is damaging the elements. 2.11 Work documents All necessary documents in form of drawings, calculations, descriptions, specifications and work instructions must be prepared before the work starts. They have to be delivered to the building site for building technician on request. 2.12 Tests The producer should deliver all the elements to the building site with valid documents and tests. It is contractor responsibility to make sure that the tests are approved by authorities.
3. General specifications 3.1 References While working process designers/constructers should refer to following sources:
Building Regulations 5
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DS 418 Eurocodes SBI direction 183, SBI 213 B&B direction 200 BIPS coding system Danish Health & Safety at Work Act
3.2 Codes and standards BIPS coding system should be used in the project process. Strength and durability of the concrete façade elements should be constructed according to Eurocodes and the Danish National Annex. It should meet all demands and standards according to the calculations and analysis results. 3.3 General guidelines and specifications Mounting elements must be carried out by manufactures guidelines and fulfill Danish standards and code of practice as stated in specification. Contractor must provide safety for the workers to the highest possible level according to the “Danish Health & Safety at Work Act”. 3.4 Materials and products
All the facade elements of East and West side have to be load bearing All the elements have to be secured against wind All the elements must be delivered, storage and mounted with special care in difficult conditions (weather etc.) All the materials and elements must fulfill fire and u-value requirements. All the elements must be finished on the building site with proper joist construction, it is unacceptable to leave the elements unfinished and at the same time not secured properly
3.5 Control The building site manager will carry out inspections independent of the contractors specifications. If faults or mistakes are found while inspections that have been executed within a control section, the control frequency will be increased to the double. If, after this, faults are still found, the control frequency will be increased to 100%. If faults or mistakes are found the element will be sent back to factory and replaced with a new one.
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3.6 Relation to other contracts None of the work provided by the contractor must be in conflict with other contracts or parts of the project and work provided by the contractor must be started in right dates. 3.7 Health and safety All the activities on the building site must fallow the “Danish Health & Safety at Work Act�.
4. Building components specification 4.1 Extent and location The work includes manufacturing delivery and mounting wooden facade elements and provide necessary equipment and machinery. The work process must consist as well of proper finishes of wall elements like corners, excluding internal finishes. The production of the wall elements must take place in manufacture and finishing process should take place on the building site directly after mounting the elements. 4.2 Design Mark that all the provided drawings might be help and should be used in designing process of wall elements. All the dimensions should be according to these drawings and documents especially according to the detail, summary drawings and facade drawings. 4.3 Materials and products All materials an products used by the manufacture must be specified and described in additional documentation which manufacture must be able to present on request. Mark that all the materials which will be used in wall elements production must be eco�friendly and should meet proper fire resistance requirements and the strength of them should be in accordance to all calculations and analysis. Following u-value and fire is a must: 0,20 W/m2K, REI120 and R120 4.4 Surfaces and finishes, tests All the elements must be finished with the graphic concrete on the outside and the rest of the outside finish must be provided on the building site. The inside finish will be fixed on the building site and it is not contractor responsibility to take care of this internal finish. The fabricator shall deliver the elements to the building site with valid documents and tests. And it is on contractor responsibility to make sure the tests are approved by authority.
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4.5 Control The building site manager/the building technician will carry out inspections independent of the contractors specifications. If faults or mistakes are found while inspections that have been executed within a control section, the control frequency will be increased to the double. If, after this, faults are still found, the control frequency will be increased to 100%. If faults or mistakes are found the element will be sent back to factory and replaced with a new one. 4.6 Health and safety All the activities on the building site must fallow the “Danish Health & Safety at Work Act�.
Regards Management of SAGE Design
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