Thermally Broken 101 |
| Thermal break technology is a proven way of enhancing the thermal performance of aluminum. Fleetwood has successfully used this method for almost 20 years. Here is how it works: |
| First, the aluminum extrusion is designed with a pocket, which will later receive the energy blocking substance. |
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| Second, the part is extruded, then tempered for hardness and protected with either a painted or anodized finish. |
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| Third, the cavity is knurled to better "grip" the energy blocking substance which will be poured into the pocket. |
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| Fourth, the pocket is filled with molten polyurethane, which hardens in seconds. |
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| Finally, the back of the pocket is removed, creating the energy block. |
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| This process forms a blockade that now separates the exterior from the interior. Along with stategically placed "isolators," the Norwood 3070-CR is the most thermally efficient aluminum multi-slide door made. |
