Insulation Under Hardie Siding

In the end the decision to install house wrap under your siding is a personal one that you should make after discussing it with your contractor.

Insulation under hardie siding.

I d like to side it in fiber cement siding to match the existing house. We ve been providing a better way to build for over 100 years. I did use larger diameter ring shanked nails than specified to fasten the. February 13 2013 exteriors insulation air sealing siding.

Addition to my house. But if you use wood clapboard siding foam sheathing can cause trouble. James hardie is the world leader in fiber cement siding and backerboard. Well call me half hazard.

I m an architect in wisconsin climate zone 6b and am planning to build a 300 s f. The building codes are all headed the way of requiring exterior rigid foam the 2012 iecc will require 1 2 foam to boost overall. When it comes to siding insulation is important. Moisture can get trapped between the siding and the foam leading to paint failure and causing clapboards to cup and curl.

However if you re interested a residing project offers the perfect time to examine your home s weather barrier and exterior insulation and improve it if need be. Method 1 james hardie siding installed directly over continuous insulation c i and other non nailable substrates e g. Gypsum sheathing with combined thickness of 1 inch or less method 2 james hardie siding installed to furring strips that are attached through the c i. Over the span of a year a good siding material can save you thousands of dollars in energy costs.

I ve become a big fan of utilizing outsulation on all my houses over the last 2 3 years. Many houses built today have a double wall type of insulation with fiberglass batts fastened between the studs on the inside and rigid foam board over. Exterior rigid foam w modern hardie plank siding details. Of course i did this all knowing my warranty would be void.

Of the three materials reviewed james hardie has the worst insulation. The insulative capabilities of our three siding materials are as follows. 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. Lp siding with fern strips over insulation.