Polyiso Roof Insulation R Value

Jm is proud to be a pima member and have its product third party certified under the pima quality mark program.

Polyiso roof insulation r value.

During late 2014 nrca conducted additional limited r value testing of polyisocyanurate insulation and found r values lower than the current lttr values. Measuring the r value of polyiso roof insulation at the website of pima polyisocyanurate insulation manufacturers association discusses long term thermal resistance lttr the astm standards underlying the r values for polyisocyanurate insulation and provides r values for various thicknesses of polyiso which increases in r value per inch as total thickness of the installation increases. Excellent lttr value compared to any other fm class 1 rated products of equivalent thickness. When we say that hunter polyiso is the cornerstone of green buildings we re not just blowing smoke.

Understanding r value thursday december 13 2018 what does r value mean. The results also are somewhat lower than the results at 25 f 40 f 75 f and 110 f mean test tem peratures from nrca s 2009 testing. Polyiso roof insulation is the most widely used product for low slope commercial roofing and provides a high r value that helps meet today s energy code requirements without the added thickness or weight of other products. 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.

Polyiso still remains the highest r value per inch of any available insulation. Polyiso insulation thickness r value chart. Polyiso can be installed on both commercial and residential structures on the roof or in the wall. Jm revised lttr values jm suggests that design professionals use 5 7 r inchas a design specification for its foam products.

Tapered polyiso minimizes the negative effects of ponding water and extends the service life of a roof. At firestone building products we offer more than just roofing and building solutions. When it comes to thermal efficiency and a wide range of building applications polyiso insulation is the 1 insulating material available today. Benefits benefits of energyguard polyiso roof insulation include.

Polyiso s unique chemistry delivers industry leading r value and fire performance. Carlisle s tapered insulation helps promote rooftop drainage while providing excellent insulating value. A variety of product types make polyiso the ideal solution for continuous insulation applications.