Green Buildings Exterior Rigid Insulation Detail Hardi Siding Furning

1 inch and 2 inch thicknesses are common.

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. Last post 10 dec 2013 08 24 pm by surfsup. The boards are available in several thicknesses and r values. I ve had trouble finding any details on fastening siding to furring strips on a wall with exterior rigid foam insulation.

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. It may look easy to go buy some packs of rigid insulation panels down at the. The james hardie siding fastener.

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. This is why i like this site. Cladding attachment over thick exterior rigid. Section 1 exterior wall drainage requirements 1 water resistive barrier and drainage requirements as defined by building code.

Your article is vey timely for me. Forums green building forums green energy efficient building and construction details for hardie plank siding over foam board. Exterior rigid insulation 1x3 wood furring strips. Continuous rigid insulation is a construction solution that provides a thermally efficient building enclosure.

3 5 fastener to siding 1 embedment 3 5 0 5 1 5 1 5. Would it be better insulation if i remove the celotex and use a 1 foam board instead. Insulation background current building code does provide prescriptive means to. Rigid insulation sheathing is made of a rigid plastic foam that is typically sold in 4x8 or 4x10 foot boards.

Plans call for vertical wood siding over a layer of rigid foam insulation. 3 water resistive barrier wrb as defined by building code and a. If layer f from figure 2 above is a non nailable substrate e g. If that sounds more or less straightforward the details are not.

Gypsum sheathing the combined thickness of layers e f must be less than 4 inches. In order to increase the insulation values i want to first add a layer of the rigid foam board.