Remundo wrote:For a thermal strainer built in 1960, it's safe to say that the insulation I installed works well.
Yes that looks good! You don't have the figures before the works I presume?
Remundo wrote:For a thermal strainer built in 1960, it's safe to say that the insulation I installed works well.
Source ? because I have the one that proves that 20 mm or 300 mm of air space is the same https://energieplus-lesite.be/donnees/e ... hes-d-air/Christophe wrote:Lost penis... 40 mm of glass wool is at best an R of 1 to 0.04 of lambda!
izentrop wrote:Source ? because I have the one that proves that 20 mm or 300 mm of air space is the same https://energieplus-lesite.be/donnees/e ... hes-d-air/Christophe wrote:Lost penis... 40 mm of glass wool is at best an R of 1 to 0.04 of lambda!
Remundo wrote:I didn't archive them unfortunately. When I go to EDF-ENEDIS, 2019 is no longer available.
It would be great if it worked like thatRemundo wrote:clean air anyway has a lower lambda than wool (0,02 W/m/K against 0,03 and more).
for example E=40 mm of air at lambda=0,025 W/m/K and S = 1 m² give:
Rth = E / lambda / S = 0.04 m/0.025 W/m/K /1 m² = 1,6 m². K/W
izentrop wrote:100 mm thick semi-rigid ISOVER glass wool, covered with a 100 x 100 mm squared kraft surfacing on one side. Lambda = 0,032W/(mK). R = 3,15 m².K/W.
For 2 air gaps of 40 + 10 of thin insulation = 90 mm, we will say 2.5 in wall glass wool.
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