Green Buildings Exterior Rigid Insulation Detail Hardi Siding Furning

James hardie recommends the use of building paper type weather resistive barriers with all siding products.

Green buildings exterior rigid insulation detail hardi siding furning.

Your article is vey timely for me. 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. Install continuous rigid foam insulation or insulated siding to help reduce thermal bridging through wood or metal framed exterior walls. 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.

James hardie will assume no responsibility. In order to increase the insulation values i want to first add a layer of the rigid foam board. This is why i like this site. 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.

I appreciate you providing more info on this overlooked detail. 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. 3 5 fastener to siding 1 embedment 3 5 0 5 1 5 1 5. I ve had trouble finding any details on fastening siding to furring strips on a wall with exterior rigid foam insulation.

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

If that sounds more or less straightforward the details are not. Would it be better insulation if i remove the celotex and use a 1 foam board instead. Section 1 exterior wall drainage requirements 1 water resistive barrier and drainage requirements as defined by building code. Install over a water resistant barrier.

Insulation background current building code does provide prescriptive means to. And other non nailable substrates e g. 3 water resistive barrier wrb as defined by building code and a. Install rigid foam over or in place of plywood osb or other wall sheathing.