I diffuse some opinions (pro and amateur ...) crossed over the net during a search ... fun.
File CSTB
http://www.cstb.fr/actualites/dossiers/produits-minces-reflechissants.html
Press Convergence scientist on the thermal performance of thin reflective products "
http://www.cstb.fr/fileadmin/documents/actualites/communiques_dossiers_presse/DP280_11_07_PDF.pdf
"The energy consumption of the cells being related, inter alia, the implementation of the two products, the most favorable conditions for implementation were selected:
The reflective product is a multi-state nine (emissivity unaged and no dust) placed between two layers of air of unventilated 6 and 8 cm thick.
The glass wool in two layers of total thickness equal to 200 mm was coated outer side an air barrier attached to the framing and OSB.
Over the entire measurement period (3-month heating season) A cell with reflective product consumed about twice as much energy as the B cell with mineral wool. "
ADEME
" Products opaque or reflective thin "insulating thin"
Their use has greatly developed since their introduction in France in the late seventies. Their thermal performance is very low compared to current thermal requirements (5 to 20 times lower than the thermal performance requirements for new buildings heated). "
An individual just GéoTrouvetou:
http://sudoku. laviron.pagesperso-orange.fr/isolant /
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