Factory Mutual Roof Ratings

Whether or not the existing deck meets factory mutual minimum standards.

Factory mutual roof ratings. Whether or not the building is a special use facility such as an airplane hangar a hospital or a facility with many large dock doors etc. 300 mm on center in the field of the roof use the same securement every 6 in. Pmv automation ab has notified fm approvals of a potential safety concern involving their series d3e digital valve positioners shipped to customers in the us between january 1 2010 and june 30 2019. Versiflex pvc mechanically attached roofing system factory mutual fm approvals b.

For example if the specific fastening detail is required every 12 in. August 19 2020 product alerts product safety notification for pmv automation ab series d3e digital valve positioners. Fm class 1 roof deck construction and insulation approvals 1 membrane type. The brands consist of an ignited wood lattice placed directly on top of the test specimen.

Failure is defined as the point where the roof deck. Understanding wind uplift ratings page 2 of 5. Double the deck securement required by roofnav for the needed field of roof rating. Both are burn through tests and the ultimate roof systems rating is the lowest of the three tests.

050 060 or 080 versiflex pvc reinforced membrane white gray or tan deck type 2 insulation 3 insulation thickness maximum slope for astm e 108 class a rating. Whether or not the building has parapet walls and if it does their height. The class a brand weighs 2 000 grams class b 500 grams and class c 9 1 4 grams. We would like to show you a description here but the site won t allow us.