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Reflective insulation
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What is the difference between Duchesne’s single bubble reflective insulation and its double bubble reflective insulation?
| Single bubble reflective insulation comprises a single layer of sealed air bubbles, whereas double bubble reflective insulation has 2 layers. Since the air acts as insulation, the double bubble product offers superior thermal performance. |
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What is the R-value?
The R-value is the measure of a material’s resistance to heat flow caused by conduction and convection.
The R-value calculation does not take into account the reflective capacity of Duchesne’s reflective insulation. Reflectivity helps reduce heat loss due to radiation, which accounts for 75% of a building’s heat loss. The greater the R-value, the more effective the level of insulation.
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What type of Duchesne reflective insulation should I use under a concrete slab, and what are its advantages compared to rigid insulation?
Duchesne’s reflective insulation is flexible and strong. Unlike rigid insulation, it is not breakable. Thus, it can be walked on without being damaged while the concrete slab is being prepared and installed. In addition, it acts as a vapour barrier and protects against infiltrations of radon gas (inert, odourless and colourless gas that escapes from the ground and can infiltrate buildings).
For this type of installation, we strongly recommend that you use Duchesne’s double bubble white reflective insulation (one side in aluminum, one side in white polyethylene and two layers of air bubbles). Of course, you can use single bubble white (one side in aluminum, one side in white polyethylene and one layer of air bubbles. However, your R-value will then be lower. It should be noted that it is extremely important for the white polyethylene side to be in contact with the concrete to avoid altering the insulation.
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| © Duchesne
et Fils ltée - 871, boulevard Duchesne, Yamachiche, Québec,
G0X 3L0, Canada |
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