R 30 Rigid Roof Insulation Thickness

Polyiso insulation thickness r value chart.
R 30 rigid roof insulation thickness. Insulation thickness to reach the r 30 value depends on the insulation material but fiberglass batts of r 30 insulation are 9 1 2 inches thick. Choose rigid insulation wisely and consider the effect its characteristics will have on the performance of the your project overall product cost and the best way to get the bang for your buck. It can also be used as a roofing cover board and in building envelope applications. Professional should specify insulation thickness based r value on the 6 0 r inch design guideline associated with the.
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. With premium polyiso manufacturing atlas is able to produce the highest effective r values with minimal material thickness. Rigid foam insulation provides the same r factor with approximately one half the thickness. Understanding r value thursday december 13 2018 what does r value mean.
We re proud to say our products can be found in some of the tallest and safest buildings around the globe like salesforce tower. When it comes to insulation performance the difference is in the details. Rigid foam insulation packs a lot of r value into a thin package but not all rigid foam performs the same. Excellent lttr value compared to any other fm class 1 rated products of equivalent thickness.
Foamular xps roof insulation for commercial buildings page 5 foamular xps roof insulation for commercial buildings foamular xps insulation is a rigid foam insulation which meets the needs of today s design professionals for a truly sustainable insulation product. Rigid polyisocyanurate thermal insulation board. 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. All products in the acfoam polyiso roof insulation family are closed cell rigid foam insulation board flat or tapered.
Benefits of energyguard polyiso roof insulation include. 6 r 30 2 layers 2 5 2 layers 2 6 7 8 r 35 2 layers 2 9 2 layers 3 1. Owens corning insulation products help improve thermal performance and control moisture in commercial institutional and. Case study salesforce tower.
As part of that standard the products must meet r value requirements. Polyiso products are a reliable alternative to other fibrous and rigid foam plastic insulation as they can offer the following benefits.