In recover applications all wet areas of the old roof must be removed.
Perlite roof insulation.
Typical u values range from 0 21 btu h ft 2 f 1 19 w m 2 k for a 2 inch 50 8 mm 27 lb ft 3.
Rigid roof insulation board.
Perlite is a versatile and sustainable mineral that is mined and processed with a negligible impact on the environment.
It s light weight provides ease of handling.
The surface is treated to reduce bitumen absorption ensuring proper adhesion of roof membranes.
In addition to improving thermal resistance perlite insulation also blocks unwanted noise to keep the inside of the home quieter.
Expanded perlite s high insulating qualities light weight and versatility make it an essential part of the construction industry for loose fill insulation and lightweight insulating concrete.
Composed of a closed cell polyisocyanurate foam core bonded in the foaming process to 1 2 thick duraboard an expanded perlite mineral aggregate board on one side and a fiber glass reinforced facer on the other.
This material is particularly popular as a form of loose fill attic insulation.
Sproule wr 1200 is inorganic non combustible and meets or exceeds the physical property requirements of astm c610.
Perlite insulation materials are resistant to mold rot and rodents.
It is composed of expanded perlite that is uniformly reinforced with a high strength fiber for use on systems operating up to 1200 f 649 c.
It is the ideal construction aggregate filler for masonry fill insulation roof decks floor systems and other significant areas that need insulation.
It is also widely used as a separation board over existing roofs in recover installations.
Many builders and homeowners rely on perlite insulation to block unwanted airflow in walls roofs and foundations.
And the green community recognizes perlite enhanced products like lightweight insulating concrete roof decks as a high performance solution drawn from a natural material of nearly unlimited supply throughout the world.
Energyguard perlite roof insulation is available in 2 x 4 610 mm x 1 22 m and 4 x 4 1 22 m x 1 22 m boards in standard thicknesses of 3 4 1 11.
Perlite roof insulation its insulating efficiency.
Energyguard perlite roof insulation is designed to be used directly over structural roof decks.
Sproule wr 1200 is a pre formed high temperature non wicking pipe and block insulation.