Roof Warranty Wind Speed

Membrane manufacturers warranties provide recourse for owners against failures in the roofing materials workmanship or assembly such as material or design defects.

Roof warranty wind speed.

Roof warranties including wind speed coverage started as a marketing approach to differentiate single plies from asphalt roofing. Every warranty carries with it a wind speed rating a threshold above which the membrane manufacturer will not cover wind related roof failure. Please note that a 1 90 or a 1a 90 rating does not provide the necessary wind speed requirements. Most roofing suppliers now offer a numerical wind coverage such as 50 55 or 60 mph and will consider higher wind speed coverage with advance notice.

For installations not eligible for the windproven limited wind warranty maximum wind speed coverage is 130mph with special installation or 110mph without special installation. The standard wind rating covers a roof assembly up to 55 mph winds. Check with your roofing contractor to find out what winds speeds you are covered for. In figure 9 a 300 ft high roof area with a rooftop wind speed of 80 mph the ground wind speed would be 55 mph while a ground wind speed of 80 mph would actually cover winds up to 118 mph for the same building.

Figure 9 examples of warranty language. Minimum wind speed rider with all manufacturers warranties in low wind areas and 110 m p h. Minimum wind speed in known high wind areas. Most single ply roofing manufacturers do offer higher wind speed warranties.

Wind speeds were and in some cases still are noted by description such as windstorms gale force and such. 4 castlebrook wind warranty. Refer to the atlas roofing limited shingle warranty for all coverage requirements. By purchasing a peak advantage guarantee you get.

Support services can include. However the industry standard for wind speed warranties is 55 mph unless otherwise specified as a specific requirement of wind speed to be provided by the manufacturer. Non single family detached residences designer shingles including timberline ultra. Enhanced wind warranty to 130 mph with 6 nail application and the use of atlas pro cut starter shingles installed along the eaves.

Standard 4 nail application is 110 mph wind warranty. For added protection owners can upgrade the coverage to 72 mph. Refer to local wind speed maps for other wind speed design requirements. For example carlisle syntec s gold seal warranty base coverage for wind is under 3 seconds of 55mph gusts.

However the granting of such a warranty is dependent upon the overall system design and other components utilized in the design.