Green Buildings Exterior Rigid Insulation Detail Hardi Siding Furning

Gypsum sheathing the combined thickness of layers e f must be less than 4 inches.

Green buildings exterior rigid insulation detail hardi siding furning.

This is why i like this site. Rigid insulation sheathing is made of a rigid plastic foam that is typically sold in 4x8 or 4x10 foot boards. In order to increase the insulation values i want to first add a layer of the rigid foam board. 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.

3 5 fastener to siding 1 embedment 3 5 0 5 1 5 1 5. Exterior wall assembly for siding applied to furring note. If that sounds more or less straightforward the details are not. Exterior rigid insulation 1x3 wood furring strips.

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. I ve had trouble finding any details on fastening siding to furring strips on a wall with exterior rigid foam insulation. Would it be better insulation if i remove the celotex and use a 1 foam board instead. 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.

The boards are available in several thicknesses and r values. 1 inch and 2 inch thicknesses are common. Forums green building forums green energy efficient building and construction details for hardie plank siding over foam board. How to insulate house walls from the outside.

It may look easy to go buy some packs of rigid insulation panels down at the. Insulation background current building code does provide prescriptive means to. I appreciate you providing more info on this overlooked detail. Your article is vey timely for me.

Continuous rigid insulation is a construction solution that provides a thermally efficient building enclosure. Plans call for vertical wood siding over a layer of 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. The james hardie siding fastener.

Cladding attachment over thick exterior rigid. 3 water resistive barrier wrb as defined by building code and a.