20-22643 - Laserfiche WebLink

Browse Search

DOIGNON SIDERATIGNS e 1 1 ' 1 MECHANIGA 1 TAGHED ROOFING SYSTEMS ILL- TPO FVC PART 1 —GENERAL 1.04 Delivery,Storage,&Protection 1.01 System Description A.Deliver products to site in original containers with seals unbroken A Mechanically attached heat-welded thermoplastic sheet roof and labeled with manufacturers'name,product brand name, membrane systems. and type. B.EverGuard°PVC membranes are not com atible with B.Store materials in weather-protected environment,clear of the EverGuard°TPO and EverGuard Extreme TPO materials. ground and moisture,in accordance with GAF instructions. DO NOT mix EverGuard®PVC with EverGuard®TPO Store all adhesives,coatings,and sealants/caulks to protect them membranes,(lashings,and flashing accessories together from freezing.Frozen material must be discarded and replaced. in the same roofing system. Properly seal all liquid material containers after use. C.Outside storage of roofing materials: 1.02 Specification Designations 1.All materials stored outside must be raised above ground or roof level on pallets and covered with a tarpaulin or other A.See Specification Plates in TPO/PVC Installation Specifications waterproof and"breathable"material.Insulation products Section. should be properly stored and weighted to avoid weather and wind damage. 1.03 Regulatory Requirements&Pre Job Conference 2.Factory-installed plastic covers are not designed for rooftop storage.Use"breathable"type covers,such as canvas A.Conform to all applicable building and jurisdictional codes, tarpaulins,to protect from weather and moisture.If including roof assembly wind uplift and fire-resistance condensation is present inside of factory shroud,cut and requirements and slope limitations.GAF recommends at least allow to vent. V4:12 of slope with proper grading and placement of drainage 3.Cover and protect materials at the end of each day's work. outlets. B.Follow your local jurisdiction requirements for disposing of used 4.Do not remove any protective tarpaulins until immediately or expired adhesives,sealants,and other products subject to before material will be installed.Extreme heat or cold disposal regulations. conditions may require special storage.Reference product data sheets for product storage requirements. C.Potential problems in roofing applications,as well as potential D.Follow GAF directions and requirements for protection of roofing conditions that may be detrimental to installation and materials prior to and during installation. performance of the roof system,should be resolved prior to the start of the application.This can best be accomplished E.Do NOT use materials that are wet or damaged to the extent that by a pre-job meeting with the architect;roofing contractor; they will no longer serve their intended purposes.Remove all general contractor;all other subcontractors whose work damaged materials from the job site. will involve the roof system/related systems;and a GAF F.When staging materials on the roof during application,ensure representative. the deck and structure are not temporarily overloaded by the D.The following are common items of discussion at a pre-job weight of construction materials. conference: G.At the job site,no more material should be stored than will be 1.Submittals of materials,drawings,and project documents. used within two weeks.For periods longer than two weeks,the 2.Roof deck conditions. materials should be properly warehoused;i.e.,dry,ventilated,on pallets,etc.No more material should be stored on the rooftop 3.Flashing and expansion joint details. than can be used within five days.When prolonged inclement 4.Insurance underwriters or building code requirements. weather threatens,i.e.,rainy seasons,no more roofing materials should be supplied to the rooftop than can be used 5.Unusual project conditions. within two days. 6.Protection of the roof,building,building occupants,and contents during and after application. 1.05 Environmental Requirements&Restrictions 7.Application techniques. A.Do not apply roofing materials during inclement or 8.Coordination and scheduling of other trades that will be threatening weather. working on the project. B.Do not expose materials vulnerable to water or sun damage 9.Designation by the roofing contractor of a qualified person in quantities greater than can be weatherproofed during the responsible for quality control.This person should be on the same day. project full time during application of the roof system. C.Be aware that high or gusting winds make the installation 10.Scheduling of material shipments,material storage,and of some materials more difficult. rooftop loading. D.Material installation during periods of high ambient temperature and/or humidity levels[typically above 90°F(32°C)and/or 90%relative humidity]can result in poor installation quality due to condensation on the membrane surface or excessively fast adhesive drying rates in hot,dry weather.Do not install 37