Gaf Roof Insulation R Value

Such roofs are generally considered to have a slope of less than 2 12.

Gaf roof insulation r value.

The analysis was done for an assembly consisting of a steel deck two layers of polyisocyanurate foam insulation polyiso and tpo single ply membrane. The insulation cost in lost r value for a fully mechanically attached system is 56 079 for this 125 000 sq ft. Meets fm 4450 4470 and ul1256 790 263. Excellent lttr value compared to any other fm class 1 rated products of equivalent thickness.

The study considers the effective insu lation value r value f ft2hr btu of a common low slope roofing assembly. Respectively per 4 x 8 board it s a fraction of the weight of gypsum cover boards. Roofing products commercial roofing products insulation and cover boards insulation. Energyguard hd has an r value of 2 5 the highest of any cover board and at 11 lb.

Energyguard nh hd polyiso roof insulation meets all the inherent properties and performance polyiso is known for and has the highest r value 2 5 of any cover board without any halogenated flame retardants making it your best choice for a sustainable building design. Big box type building as indicated for case 1 the mechanically attached system. Roofing shingles and materials plus factory certified roofers including ratings from real homeowners from north america s largest roofing manufacturer. With 80 psi compressive strength and a durable coated glass facer energyguard hd is an ideal board for protecting your roof against the elements.

Fm approved subject to the conditions of approval as a roof insulation when installed as shown in the current edition of the factory mutual research approvals guide. Residential and commercial roofing shingles slate roof ventilation roof underlayments asphaltic and tpo roof membranes. This is a significant loss in economic value. Energyguard polyiso insulation is designed for use over structural roof decks where r values of 5 7 or higher are required along with comprehensive ul and fm approvals.

Energyguard composite board roof insulation is designed for use over structural roof decks where r values of 7 4 or higher are required along with moderate insulation thickness for roof edge detailing and where comprehensive ul and fm approvals are necessary. Get to know more about one of the most popular commercial roofing systems. The lowest cost and most effective assembly in terms of r value is case 3 the adhered system.