Green Buildings Exterior Rigid Insulation Detail Hardie Siding Furring

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.

Green buildings exterior rigid insulation detail hardie siding furring.

Method 1 james hardie siding installed directly over continuous insulation c i and other non nailable substrates e g. I have completed several projects that use foil faced polyiso as the exterior rigid insulation board. Siding and the water resistive barrier as a best practice. Some building codes exempt the use of weather resistive barriers over water repellent panel sheathing or exterior panels classified as weather resistive barriers.

In order to increase the insulation values i want to first add a layer of the rigid foam board. 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. Cladding attachment over thick exterior rigid. And other non nailable substrates e g.

Insulated siding installed over furring strips alone would not be considered home insulation. James hardie recommends that you consult with your design professional if you have questions regarding exterior wall drainage on your single family project. 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. Exterior rigid insulation 1x3 wood furring strips. James hardie will assume no responsibility. How to install rigid foam.

Insulation background current building code does provide prescriptive means to. I install 1x furring strips vertically over the foam to support fiber cement lap siding. Individual buildings all exterior cladding products including hard siding brick stone stucco and vinyl. When insulated siding is installed over furring strips the space between the furring strips must be filled in with rigid insulation or another appropriate building material.

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. 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.