Polyisocyanurate Roof Insulation Wet

2 stated thermal resistance values are based upon conditioning requirements and test methodology found in astm c1289 and astm c518 for foil faced polyisocyanurate insulation.

Polyisocyanurate roof insulation wet.

This is an even more dense and more expensive foam board insulation. If an insulation polyiso or polystyrene is submerged in water the insulation benefit. Excellent lttr value compared to any other fm class 1 rated products of equivalent thickness. It can be attached using a variety of methods and is compatible with all of carlisle s single ply systems.

It provides an r value of 6 per inch of thickness and often comes foil faced to help reflect radiant heat. Polyiso applications polyiso is a versatile high performance insulation solution that is suitable for a multitude of applications. 1 when joints penetrations detailed appropriately. See also material data sheet msds 1511 or msds 1911.

Polyiso is most commonly used as a continuous insulation for roofs and walls and as a protective roof cover board. Reports have been received of moisture contamination or signs of moisture contamination of polyisocyanurate insulation on some construction job sites. Trymer pir can be used in applications that operate at temperatures ranging from 297 f to 300 f 183 c to 148 c. Additionally trymer pir is offered in a variety of different densities and compressive strengths to ensure the product consistency is suited for the unique needs of.

For this reason polyiso is the best insulation for cavity wall applications. This is an even more dense and more expensive foam board insulation. I just read one of the discussions on the use of polyisocyanurate insulation on the exterior of a home and how it acts as a vapor barrier and not to use it because it doesn t breath thus resulting in potential condensation and mold problems within the walls. Roof insulation is a critical component of a roof system and contributes to overall building energy efficiency as the roof is the largest single side of a typical building.

Recognizing the importance of an energy efficient building thermal envelope modern energy codes establish minimum requirements for insulation. The information on this page is based on data considered to be true and accurate based on periodic internal. Polyisocyanurate polyiso polyiso is the industry s premier roofing insulation. My concern is that i am currently getting ready to reside my house and i have already installed this on 50 of my home.

Designers are advised to determine the optimum thickness of polyiso by performing a dew point calculation for the system. Liquid water should never be present in a building system. 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.