ARMATHERM GF
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Introduction
Armatherm™
GF Grade Thermal Break Pads deliver
deliver high performance thermal insulation
between interior and exterior steelwork and / or
concrete to prevent thermal bridging. Cutting out
thermal bridging stops conduction heat loss and
prevents surface condensation from forming inside
the building that can be due to cold transfer
meeting warm air
Specifications of Armatherm
| Maximum Loading Pressure N/mm2 | 103 |
| Strain at Maximum Pressure | 10% |
| Compressive Modulus N/mm | 2600 |
| Shear Strength N/mm2 | 75 |
| Standard Thickness | 13mm, 19mm, 25mm, & 50mm |
| Density Kg/M3 | 1300 |
| Thermal Conductivity W/m°K | 0.196 |
| Minimum Operating Temp °C | -30 |
| Maximum Operating Temp °C | 82 |
For comparison, the thermal conductivity of Mild Steel is 56 W/m°K
Washer and Bushing
With a bolt through insulation pad there is the possibility of a slight thermal transfer along the connecting bolt
For the majority of installations this can be ignored, however this effect can be reduced with the addition of Insulation washers and bushing
In extreme applications (e.g. Swimming Pools), to prevent condensation on the bolt head, a polyurethane nut cap can be supplied to effectively screen this cold surface from the internal environment
BUSHING DETAIL
| Bolt Size |
Hole in Pad |
Bushing ID |
Bushing OD |
Hole in Structure |
Bushing Length |
| M12 |
14 |
14 |
20 |
20 |
10 |
| 1/2" |
0.55" |
0.55" |
0.78" |
0.78" |
0.375 |
| M16 |
18 |
18 |
24 |
24 |
13 |
| 5/8" |
0.70" |
0.70" |
1.0" |
1.0" |
0.50" |
| M20 |
22 |
22 |
28 |
28 |
13 |
| 3/4" |
0.86" |
0.86" |
1.10" |
1.10" |
0.50" |
| M24 |
26 |
26 |
32 |
32 |
17 |
| 1" |
1.05" |
1.05" |
1.25" |
1.25" |
0.625" |
|
