This commitment has resulted in the development of firestone insulation boards and firestone cover boards.
Firestone polyiso roof insulation r value.
All firestone polyisocyanurate foam insulations use epa accepted blowing agents.
Polyiso is unique in that the r value increases with the thickness of the foam so three inches of polyiso has a higher r value per inch than two inches.
Firestone has been committed to offering a complete line of high performing roofing solutions as individual as your building.
This is a decrease from the current design value of 6 0 r inch.
Polyiso has a high r value per inch compared to other insulation products.
This industry issue update explains why the nrca recommends using a significantly lower r value for polyiso than pima does.
A higher r value means that the insulation will do a better job of holding in conditioned air whether that s heat in the winter or cool air in the summer.
Flat and tapered iso 95 gl insulation provides outstanding thermal performance on commercial roofing applications while providing positive rooftop drainage to help eliminate ponding water when tapered iso 95 gl insulation is used.
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.
Understanding r value thursday december 13 2018 what does r value mean.
Recommended reading for anyone specifying polyiso insulation.
Benefits of energyguard polyiso roof insulation include.
New polyisocyanurate r values is a 2 page 2016 industry issue update from the national roofing contractors association nrca.
The lttr test method has been updated to provide a more accurate prediction of the in service r value of polyiso roof insulation.
Manufactured with a heavy duty double coated non organic glass facer firestone resista polyiso insulation board is compatible with all fully adhered and mechanically.
Polyiso insulation thickness r value chart.
At low temperatures competing polyiso boards require additional thickness to achieve the same r value of firestones polyiso.
Excellent lttr value compared to any other fm class 1 rated products of equivalent thickness.
Firestone iso 95 gl polyiso insulation has a higher r value than other insulation products while also outperforming competitive polyiso at low temperature.
