Polyisocyanurate Roof Insulation Thickness

This product provides two layers of insulation installed in one application which reduces labor and material costs.

Polyisocyanurate roof insulation thickness.

Trymer pir polyisocyanurate is a closed cell foam insulation for industrial pipes vessels and equipment. Other materials may only have a fifty percent increase in r value when their thickness is. So you need to know an insulation product s thickness as well as its r value in order to compare it to another product. Benefits of energyguard polyiso roof insulation include.

Excellent lttr value compared to any other fm class 1 rated products of equivalent thickness. 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. It can be attached using a variety of methods and is compatible with all of carlisle s single ply systems. Firestone isogard hd composite cover board is ideal for both new construction and reroof applications with available thicknesses from 1 5 to 4 two board sizes and three coated glass facers that provide mold resistance.

All atlas acfoam polyiso insulation boards are qualitymark certified providing consumers an easy way to identify premium products that meet or exceed building codes for the best in roof performance. Polyisocyanurate polyiso polyiso is the industry s premier roofing insulation. Old lttr test method. Eight inches of poor quality insulation may have a higher and better r value than one inch of top quality insulation.

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. 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. Likewise for jobs that will be permitted in 2014 the design professional should specify insulation thickness based on the 5 7 r inch design guideline associated with the new lttr test method. Acfoam polyiso roof insulation atlas acfoam products are among the most sustainable and widely used building insulation materials available today.

Dated its r value recommendations for polyisocyanurate insulation used in roof systems. Membrane roof systems 2015 nrca had recommended designers use in service r values of 5 0 per inch thickness in predominant. In the nrca roofing manual. Trymer pir can be used in applications that operate at temperatures ranging from 297 f to 300 f 183 c to 148 c.

Membrane roof systems 2011 and the nrca roofing manual. Jm suggests that the design professional specify polyiso insulation by its thickness and its full astm designation rather than.