Green Buildings Exterior Rigid Insulation Detail Hardie Siding Furring

Cladding attachment over thick exterior rigid.

Green buildings exterior rigid insulation detail hardie siding furring.

Increased use of continuous insulation such as rigid foam wall sheathing with greater thickness i e. I have completed several projects that use foil faced polyiso as the exterior rigid insulation board. Up to 4 in thickness is an effective means of meeting or exceeding modern energy code requirements or green building rating requirements such as leed energy star epa and the icc 700 national green building standard. I install 1x furring strips vertically over the foam to support fiber cement lap siding.

James hardie recommends that you consult with your design professional if you have questions regarding exterior wall drainage on your single family project. I do not use the foam as the drainage plane however. Siding and the water resistive barrier as a best practice. James hardie recommends the use of building paper type weather resistive barriers with all siding products.

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. James hardie will assume no responsibility. The furring strips are attached to the studs with 4 screws at 6 to 8 o c. 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.

3 5 fastener to siding 1 embedment 3 5 0 5 1 5 1 5. How to install rigid foam. Insulated siding installed over furring strips alone would not be considered home insulation. Exterior rigid insulation 1x3 wood furring strips.

And other non nailable substrates e g. Individual buildings all exterior cladding products including hard siding brick stone stucco and vinyl. Hardie plank recommends a maximum of 1 of foam board celotex type material under their lap siding so the 1 2 foam and 1 2 celotex would be fine. Insulation background current building code does provide prescriptive means to.

Method 1 james hardie siding installed directly over continuous insulation c i and other non nailable substrates e g. Some building codes exempt the use of weather resistive barriers over water repellent panel sheathing or exterior panels classified as weather resistive barriers.