Green Buildings Exterior Rigid Insulation Detail Hardi Siding Furning

Section 1 exterior wall drainage requirements 1 water resistive barrier and drainage requirements as defined by building code.

Green buildings exterior rigid insulation detail hardi siding furning.

Install over a water resistant barrier. 2 water resistive barrier as defined by local building code that is manufactured to meet minimum 90 drainage efficiency when tested in accordance with astm e2273 or other recognized national standards. The contractor has limited experience working with rigid exterior insulation remsberg writes and has concerns that installing siding directly over the foam may not be a great idea. 3 5 fastener to siding 1 embedment 3 5 0 5 1 5 1 5.

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. Cladding attachment over thick exterior rigid. And other non nailable substrates e g. James hardie recommends the use of building paper type weather resistive barriers with all siding products.

3 water resistive barrier wrb as defined by building code and a. I ve had trouble finding any details on fastening siding to furring strips on a wall with exterior rigid foam insulation. If that sounds more or less straightforward the details are not. Install continuous rigid foam insulation or insulated siding to help reduce thermal bridging through wood or metal framed exterior walls.

Install rigid foam over or in place of plywood osb or other wall sheathing. 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. James hardie will assume no responsibility. Exterior rigid insulation 1x3 wood furring strips.

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

Your article is vey timely for me. In order to increase the insulation values i want to first add a layer of the rigid foam board. 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. This is why i like this site.