Polyiso On Roof

Take the money that you would have spent on the polyiso and use it for a thicker layer of cellulose.

Polyiso on roof.

Excellent lttr value compared to any other fm class 1 rated products of equivalent thickness. Polyisocyanurate rigid foam roof insulation is widely used in many types of roof systems such as mechanically fastened adhered and loose laid assemblies. Polyiso is a versatile high performance insulation solution that is suitable for a multitude of applications. Polyisocyanurate polyiso is a closed cell rigid foam board insulation that is bonded to facers on both sides which are composed of various organic and inorganic materials.

If you want to install a thicker layer of insulation then all of the insulation belongs together in your case on the attic floor. If you have a vented unconditioned attic then installing polyiso above your roof sheathing is a waste of polyiso. As a foil faced polyisocyanurate foam insulation enerfoil tm s r value actually more than doubles when it is twice as thick as you can see from the chart above. Polyiso is most commonly used as a continuous insulation for roofs and walls and as a protective roof cover board.

Currently polyisocyanurate offers the highest thermal resistance per inch of thickness allowing for higher value in roof designs which are limited in overall thickness. Acfoam iii features inorganic coated glass facers which have a significantly more efficient use of solvent based. Polyiso is used in roof wall ceiling and specialty applications within commercial and residential buildings of all types. More projects select polyiso roof insulation for both new and roof replacement systems than any other insulation product due to polyiso s numerous performance advantages which include.

Benefits of energyguard polyiso roof insulation include. Polyiso or polyisocyanurate is a rigid foam insulation used in more than 70 of commercial roof construction and offers a continuous insulation solution for commercial flat low slope roof insulation and wall assemblies. Other materials may only have a fifty percent increase in r value when their thickness is doubled. 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.