|
The
following are the properties and characteristics of the closed cell
Polyurethane Foam product that is used at M H Insulation. |
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|
|
|
Physical
Properties
|
| Density |
0.5lb/cf
|
| Thermal resistance |
R-3.6/in
|
| Heat flow resistance
through 1.0" |
72.7%
|
| Heat flow resistance
through 3.5" |
92.2%
|
| Heat flow resistance
through 5.5" |
95.0%
|
| Heat flow resistance
through 10.0" |
97.3%
|
| Vapor permeance -
5" |
10 perms
|
| Sound transmission
class |
37
|
| Noise reduction
coefficient |
70
|
|
|
| Picture
of a closed cell SPF |
|
Environmental
Characteristics
|
| HFAs HCFCs |
none
|
| Formaldehyde |
none
|
| Corrosiveness |
negative
|
| VOCs |
none detectable
|
|
|
|
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Flammability
Characteristics
|
| Flame spread ASTM E84 |
<20
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| Smoke developed |
<400
|
| Fuel contribution |
zero
|
| Oxygen index |
23
|
|
|
The
following table lists insulation R-values and efficiency rating for
commonly used insulation products:
- Fiberglass insulation - 3.2 / inch &
32%
- Cellulose insulation - 3.5 / inch &
36%
- Open cell polyurethane foam - 3.5 / inch
& 44%
- Closed cell polyurethane foam - 7.0 /
inch & 92%
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