Polyiso Rigid Insulation Weight

The starting materials are similar to those used in polyurethane pur except that the proportion of methylene diphenyl diisocyanate mdi is higher and a polyester derived polyol is used in the reaction instead of a polyether polyol.

Polyiso rigid insulation weight. The intent may be to also cover the weight of the structure but then it is generally someone s conservative guess. Iso c1 2 5 is certified by independent laboratory to meet demanding class 1 flame spread and smoke development requirements per astm e84. Polyiso insulation is the best choice as a cost effective energy efficient and environmentally responsible insulation product. Load of 20 psf.

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. Polyisocyanurate polyiso is a closed cell rigid foam insulation board made with recycled content that is widely used in commercial roofing. Because of its light weight this material is easier to handle on the job site and installs faster. One of the downsides of bid work is that efforts to clarify information such as this can often be futile.

Asce states that rigid roof insulation weighs 1 5 psf per inch of thickness whereas polyiso insulation like thermax is 0 25psf per inch. Polyiso has a high r value per inch compared to other insulation products. Polyisocyanurate also referred to as pir polyiso or iso is a thermoset plastic typically produced as a foam and used as rigid thermal insulation. Easier cutting in the field provides the installer with simplified fabricating on the roof deck which minimizes on the job damage.

And as new building science continues to reveal opportunities to improve rmax remains at the forefront manufacturing tested engineered commercial industrial and residential insulation solutions for enhanced. Our comprehensive line of high quality polyiso based products continues to deliver maximum r values minimum environmental impact and efficiency in installation cost and design. What is polyiso insulation. Energyguard polyiso roof 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. Is there a reason w rigid roof insulation weight structural engineering general discussion eng tips. This product is an improvement of previously used pur boards polyurethane typically produced as a foam and used as rigid thermal insulation.