While the effectiveness of thin reflective insulators (IMRs) is strongly questioned, this is not the case with Depron, a thin insulator made from extruded polystyrene foam, with closed cells and a fine texture. It is particularly interesting to avoid the phenomenon of the "cold wall" and to prevent the risks of condensation. It is presented in plates, under two thicknesses: 3 and 6 mm. It is in fact a complete system, with specifically adapted glues, primer coating and even coating for joint.
- Notched spatula
- Rule of upholsterer
- Spatula to be rubbed
- Brush to be rubbed
- Lay the Depron insulation on the wall
- Characteristics of Depron Insulation
Lay the Depron insulation on the wall
1. On a dry, healthy and dust-free wall, spread the specific "insulating glue" with a notched trowel at a rate of 250 g / m2. If the wall has some irregularities, small holes or light cracks, it is not necessary to reseal, coat or sand to make it perfectly smooth. On the other hand, if you plan to put on the insulation a heavy coating, like tiling, use for its installation, the glue "Dépron plus", specifically adapted to allow a hanging able to withstand the weight of a tile later wall mounted (up to 3 kg / m2).
2. Place the insulation on the bonded wall by applying the green label side to the substrate. Its positioning (vertical or horizontal) can be a function of both the coating it will support that the configuration of places.
3. After making sure the lé is in good position, and particularly the quality of the joint formed with the previous lé, carefully marouflage the insulation with a large plastic spatula, designed especially for this purpose (especially recommended for insulation strips) in 6 mm thick).
4. If your seal does not seem perfectly realized, the "special joint" tube coating will allow you to obtain a satisfactory result. With the 3 mm Depron, if you are used to laying coatings, use the "quick joint" method by superimposing the edges of two adjacent strips. Using a ruler and a cutter, make a straight cut on the layering and remove the falls. Marouflage the two edges that are found to "live joint". The seal will be impeccable.
Characteristics of Depron Insulation
When the insulation is used in its thinnest form (thickness 3 mm), it can be stuck with a good classic scrubbing brush like the one used for wallpaper.
The Dépron is presented in plates of 2.50 m x 0.80 m but folded in two for a greater ease of handling and setting up. It is classified M1 on incombustible support. Its thermal conductivity coefficient is 0.028, its thermal resistance R at 0.17 (in 6 mm). It can be painted (vinyl or acrylic paint only), upholstered (use the primer) or tiled (only if it has been glued with "Dépron plus" glue).
(photos / visuals: © Quelyd, except special mention)
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