Cement Siding Over Foam Insulation
Plus rigid foam insulation applied over the outside walls.
Cement siding over foam insulation. When applying james hardie siding directly over the combined thickness of foam sheathing continuous insulation and other non nailable substrates e g. Also are triple pane windows too heavy for a double wide mobile home with 2 6. In a typical situation. The bid i just got is from a company that wants to put vinyl siding with foam insulation attached to the siding on over the existing siding.
Last year i installed lp lap smart trim shingles and the 4x8 sheets of lp with batts all over 3 of continous xps foam using fern strips. Cladding attachment over thick exterior rigid insulation background current building code does provide prescriptive means to attach cladding over exterior insulation table r704 3 note v. My siding is mostly in good shape. According to my calculations if i want to use rigid foam insulation on the outside of the 2 6 walls with r 21 fiberglass in the wall cavities i need at least r 11 25 in order to avoid condensation on the inside face of the sheathing.
The foam on the outside keeps the wood frame. I d like to side it in fiber cement siding to match the existing house. Lp siding with fern strips over insulation. Spray foam really is a magical tool for household insulation.
I have a 1996 double wide mobile home that needs new siding and windows. Siding over rigid foam. Concrete cultured marble glass. Current pneumatic nailers have maximum fastener lengths.
And non nailable substrates 1 inches thick and less. Well call me half hazard. Although fiberglass has been commonly use for insulation spray foam can actually outperform it plus with so many ways you can use expanding foam this material certainly is handy now only if it could help us out with all of those concrete problems. February 13 2013 exteriors insulation air sealing siding i ve become a big fan of utilizing outsulation on all my houses over the last 2 3 years.
The building codes are all headed the way of requiring exterior rigid foam the 2012 iecc will require 1 2 foam to boost overall efficiency so i m really not too far ahead of my time with. It adds up to a robust system. Minimum nail length must accommodate sheathing and penetrate framing a minimum 1 inches.