Green Buildings Exterior Rigid Insulation Detail Hardi Siding Furning

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.

Green buildings exterior rigid insulation detail hardi siding furning.

And other non nailable substrates e g. Install continuous rigid foam insulation or insulated siding to help reduce thermal bridging through wood or metal framed exterior walls. 3 5 fastener to siding 1 embedment 3 5 0 5 1 5 1 5. Method 1 james hardie siding installed directly over continuous insulation c i and other non nailable substrates e g.

Section 1 exterior wall drainage requirements 1 water resistive barrier and drainage requirements as defined by building code. Some building codes exempt the use of weather resistive barriers over water repellent panel sheathing or exterior panels classified as weather resistive barriers. Exterior rigid insulation 1x3 wood furring strips. 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.

James hardie recommends the use of building paper type weather resistive barriers with all siding products. Would it be better insulation if i remove the celotex and use a 1 foam board instead. 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.

James hardie will assume no responsibility. This is why i like this site. Cladding attachment over thick exterior rigid. 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.

If that sounds more or less straightforward the details are not. I ve had trouble finding any details on fastening siding to furring strips on a wall with exterior rigid foam insulation. 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. I appreciate you providing more info on this overlooked detail.

Plans call for vertical wood siding over a layer of rigid foam insulation. Install over a water resistant barrier. 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. 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.