Carlisle s tapered insulation helps promote rooftop drainage while providing excellent insulating value.
Firestone polyiso roof insulation r value.
As an example a 1 board label will include information from lttr s770 03.
The use of iso 95 gl insulation in a firestone roofing system provides a cost effective solution for today s oof design r challenges and is preferred for any and every roofing system.
Tapered polyiso minimizes the negative effects of ponding water and extends the service life of a roof.
Benefits of energyguard polyiso roof insulation include.
This commitment has resulted in the development of firestone insulation boards and firestone cover boards.
Jm sheathing r values will not change.
The net result is that the r value of the insulation will decrease slightly over time.
In 2003 the polyiso industry introduced the concept of long term thermal resistance or lttr.
Understanding r value thursday december 13 2018 what does r value mean.
Firestone has been committed to offering a complete line of high performing roofing solutions as individual as your building.
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.
Firestone iso 95 gl polyiso insulation has a higher r value than other insulation products while also outperforming competitive polyiso at low temperature.
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.
The r value of your insulation can optimize your energy savings in any zone.
Polyiso insulation thickness r value chart.
It represents the actual r value that the polyiso insulation will provide while in service.
Excellent lttr value compared to any other fm class 1 rated products of equivalent thickness.
Firestone polyiso insulation.
Firestone isogard polyiso insulation goes even further and was the first product on the market to meet both astm c1289 required and recommended thermal performance values.
In q4 2013 jm will modify its packaging to reflect lttr values by both test methods.
More projects select polyiso roof insulation for both new and roof replacement systems than any other insulation product.
Jm s wall sheathing line ap foil and ci max are not governed by lttr test methods and have different r value measurement standards.
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.
