With premium polyiso manufacturing atlas is able to produce the highest effective r values with minimal material thickness.
Rigid roof insulation r value per inch.
When it comes to insulation performance the difference is in the details.
Most often used in roofing applications average cost of 70 per sq.
Traditional loose fill insulation such as fiberglass or cellulose has an r value between r 2 0 and 3 5 per inch of thickness.
Estimated r value of asbestos insulation.
For a 1 in thick panel may vary based on region standard r value of r 5 8 per inch the manufacturing process starts with liquid foam not recyclable has to be sprayed against a substrate to form a rigid panel so all iso panels are faced.
All products in the acfoam polyiso roof insulation family are closed cell rigid foam insulation board flat or tapered.
Polyiso is typically used with a foil facing and it has an r value of 7 0 to 8 0 per inch of thickness.
Asbestos corrugated paper pipe insulation.
Eight inches of poor quality.
The same insulation will hold more heat the thicker it is installed.