What is perlite board?
EnergyGuard™ Perlite Recover Board is a heavier duty 1/2″ (13 mm) thick perlite roof insulation board composed of expanded perlite, cellulose binders, and waterproofing agents.
What is perlite insulation?
Perlite insulation is an inorganic product that does not support combustion, or rot, nor does it provide a habitat for rodents. It is ideal for use under concrete slabs, in chimneys and in high-temperature applications such as pizza ovens and rocket stoves.
What is expanded perlite?
The expanded perlite is a white granular material that is extremely lightweight, the new structure gives it remarkable thermo-acoustic qualities. The countless micropores of dry air in the new structure makes the material behave as a very efficient natural insulator.
Can perlite be used as insulation?
The United States is the world’s largest producer and consumer of perlite. In addition to its use as an insulator in buildings, perlite is used for the insulation of low-temperature equipment, such as super-cold storage and cryogenic tanks, as well as in food-processing applications.
Does perlite insulation contain asbestos?
Perlite, including perlite building Insulation is a non-fibrous non-asbestos-containing material which has an R-value of about 2.7 per inch and would not be expected to contain asbestos.
Is perlite good for insulation?
In addition to its use as an insulator in buildings, perlite is used for the insulation of low-temperature equipment, such as super-cold storage and cryogenic tanks, as well as in food-processing applications.
Can perlite insulation get wet?
Answer: In cryogenic applications, there are instances where there are cracks in the casing and the expanded perlite does get wet. If the area involved is very significant, moisture droplets will begin forming on the exterior surface.
Does perlite make good insulation?
Does perlite retain heat?
While it is true that perlite concrete will insulate more than regular concrete, in practice you will find that perlite concrete will retain heat and offer more thermal mass than it will practical insulation.
How heat resistant is perlite?
Perlite particles are extremely lightweight, frothy mineral bubble clusters that are readily compatible with cementitious and other SFRM formulations. Having been flash-expanded from its graded, raw ore form at high temperature, perlite can withstand temperatures from 1600 to 2000ºF before reaching its softening point.
Is perlite toxic to humans?
Perlite is a naturally occurring silicous rock and as such, is not toxic. Perlite is used in horticultural, construction and industrial applications. Ingesting the products that incorporate perlite may cause illness and, in excessive amounts, permanent harm or death.
What are the advantages of perlite as an insulator?
Perlite as Insulation 1 The Benefits of Perlite as Insulation. When perlite ore is expanded by exposure to rapid, controlled heating, it grows up to 20 times its original volume and takes on a 2 Masonry Fill Perlite. 3 Cryogenic/High Temperature Insulation. 4 Other Insulation Applications. 5 Industry Association Links
What happens to perlite in a furnace?
When furnace at high temperatures, Perlite “pops” and expands up to 15 times its original volume. The resulting, lightweight particles are made up of microscopic spheres with a porous, broken surface that promotes plant growth.
What is perlite loose-fill masonry insulation?
Economical: Perlite loose-fill masonry insulation offers excellent thermal and fire resistant properties at an economical cost. It is lightweight and pours easily and quickly without requiring special equipment or skills. It is recommended that the loose-fill perlite shall conform to the requirements of ASTM Designation C549.
What is perlite made of?
Perlite is a naturally occurring, volcanic rock. When furnace at high temperatures, Perlite “pops” and expands up to 15 times its original volume. The resulting, lightweight particles are made up of microscopic spheres with a porous, broken surface that promotes plant growth.