Green Buildings Exterior Rigid Insulation Detail Hardi Siding Furning

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.

Green buildings exterior rigid insulation detail hardi siding furning.

In order to increase the insulation values i want to first add a layer of the rigid foam board. Insulation background current building code does provide prescriptive means to. 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. Exterior wall assembly for siding applied to furring note.

Rigid insulation sheathing is made of a rigid plastic foam that is typically sold in 4x8 or 4x10 foot boards. I appreciate you providing more info on this overlooked detail. The boards are available in several thicknesses and r values. Plans call for vertical wood siding over a layer of rigid foam insulation.

If that sounds more or less straightforward the details are not. Last post 10 dec 2013 08 24 pm by surfsup. 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. How to insulate house walls from the outside.

Cladding attachment over thick exterior rigid. 1 inch and 2 inch thicknesses are common. Section 1 exterior wall drainage requirements 1 water resistive barrier and drainage requirements as defined by building code. 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.

I ve had trouble finding any details on fastening siding to furring strips on a wall with exterior rigid foam insulation. This is why i like this site. Would it be better insulation if i remove the celotex and use a 1 foam board instead. Gypsum sheathing the combined thickness of layers e f must be less than 4 inches.

3 5 fastener to siding 1 embedment 3 5 0 5 1 5 1 5. The james hardie siding fastener. 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.

It may look easy to go buy some packs of rigid insulation panels down at the. Exterior rigid insulation 1x3 wood furring strips.