Green Buildings Exterior Rigid Insulation Detail Hardi Siding Furning

Your article is vey timely for me.

Green buildings exterior rigid insulation detail hardi siding furning.

Insulation background current building code does provide prescriptive means to. 3 5 fastener to siding 1 embedment 3 5 0 5 1 5 1 5. 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.

I appreciate you providing more info on this overlooked detail. In order to increase the insulation values i want to first add a layer of the rigid foam board. 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. 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.

And other non nailable substrates e g. If that sounds more or less straightforward the details are not. 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. Cladding attachment over thick exterior rigid.

3 water resistive barrier wrb as defined by building code and a. Some building codes exempt the use of weather resistive barriers over water repellent panel sheathing or exterior panels classified as weather resistive barriers. I ve had trouble finding any details on fastening siding to furring strips on a wall with exterior rigid foam insulation. Method 1 james hardie siding installed directly over continuous insulation c i and other non nailable substrates e g.

James hardie will assume no responsibility. Install continuous rigid foam insulation or insulated siding to help reduce thermal bridging through wood or metal framed exterior walls. This is why i like this site. Would it be better insulation if i remove the celotex and use a 1 foam board instead.

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. 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. Plans call for vertical wood siding over a layer of rigid foam insulation.