To make a facade renovation in plaster (15 m x 10 m, 3.20 m in height), can we isolate thermally by an insulating coating? Is it as efficient as rail-mounted panels?
Insulating plaster can not be considered as a true means of insulation of a façade, but only as complementary elements. No insulating coating achieves (in 2018) the thermal resistance (R = 3.7) giving access to ISCED, that is to say the Tax Credit for Energy Transition. An "insulating" plaster of 5 cm does not exceed R = 0.5. On the other hand, this type of plaster can be part of the composition of a thermal insulation from the outside (ITE) traditional, with insulation, framing and siding.
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