I have some considerations regarding enclosing organic material.
Assume that:
Layer 0 - Insulation (IPN core) on top of TRP sheet
Layer 1 - Galvanized sheet.
Layer 2 - Thin plastic film on the sheet (5 microns)
(
file:///C:/Users/Personal/Downloads/113348_Kingspan_Product_Data_Sheet_KS1000_X-dek_(XD)_IPN_EN_SE_17_03_2021.pdf )
- - - - - These parts will be added to the above sandwich construction - - - -
Layer 3 - Roofing felt
Layer 4 - Plywood (4-12mm?) - distributes the load
Layer 5 - Additional felt enclosing the plywood
Layer 6 - Some protection for the felt (wear layer?)
Will this become an unfortunate construction?
What happens if you enclose mineral wool between two layers of roofing felt?
Mineral wool doesn't contain any organic material, right?
But maybe it absorbs moisture?
