Green Buildings Exterior Rigid Insulation Detail Hardi Siding Furning

3 water resistive barrier wrb as defined by building code and a.

Green buildings exterior rigid insulation detail hardi siding furning.

Adding extra insulation to the exterior walls of an older home when renovating or remodeling is a great way of improving a home s walls thermal performance and reducing energy use while reducing heating bills carbon footprint and improving a building s comfort level. It may look easy to go buy some packs of rigid insulation panels down at the. Continuous rigid insulation is a construction solution that provides a thermally efficient building enclosure. 1 inch and 2 inch thicknesses are common.

I appreciate you providing more info on this overlooked detail. Section 1 exterior wall drainage requirements 1 water resistive barrier and drainage requirements as defined by building code. 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 ve had trouble finding any details on fastening siding to furring strips on a wall with exterior rigid foam insulation.

If layer f from figure 2 above is a non nailable substrate e g. Insulation background current building code does provide prescriptive means to. Last post 10 dec 2013 08 24 pm by surfsup. How to insulate house walls from the outside.

Would it be better insulation if i remove the celotex and use a 1 foam board instead. Forums green building forums green energy efficient building and construction details for hardie plank siding over foam board. Rigid insulation sheathing is made of a rigid plastic foam that is typically sold in 4x8 or 4x10 foot boards. 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 james hardie siding fastener. Exterior wall assembly for siding applied to furring note. 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. Your article is vey timely for me.

Gypsum sheathing the combined thickness of layers e f must be less than 4 inches. Plans call for vertical wood siding over a layer of rigid foam insulation. Cladding attachment over thick exterior rigid. The boards are available in several thicknesses and r values.

If that sounds more or less straightforward the details are not. In order to increase the insulation values i want to first add a layer of the rigid foam board.