Fiber Cement Siding Over Concrete Block Insulation

Current pneumatic nailers have maximum fastener lengths.

Fiber cement siding over concrete block insulation.

Fiber cement siding comes in many colors and textures including some that mimic wood shingles. Fiber cement siding stands up to wind rain hail fire insects and even hurricane level storms. Starter strip hardieplank lap siding nailed directly to block walls trim cmu wall 6 clearance to grade refer to table on next page for fastener type and fastener spacing. Hardieplank lap siding 6 clearance to grade trim refer to ner 405.

Method 1 james hardie siding installed directly over continuous insulation c i and other non nailable substrates e g. And other non nailable substrates e g. Cladding attachment over thick exterior rigid insulation background current building code does provide prescriptive means to attach cladding over exterior insulation table r704 3 note v. Cement concrete block concrete forms.

Prefabricated fiber cement siding provides several pros and cons when applied as an exterior finish to icf. Siding over rigid foam exteriors. My current question concerns insulating the exterior walls. A third party life cycle assessment found that insulated vinyl siding has a lower overall environmental impact than fiber cement second only to traditional vinyl siding and cedar.

I wouldn t hesitate to install 1 3 or 2 4 horizontal strapping 24 inches on center on top of the foam holladay recommends. Minimum nail length must accommodate sheathing and penetrate framing a minimum 1 inches. I ve looked at a lot of the material on building science and would like to. One new wrinkle for many builders is walls built with fiber insulation between the studs plus rigid foam.

I ll be taking off the roof and taking down all the interior walls leaving a bare uninsulated concrete block wall with no finishes either on the inside or outside. Method 1 over furring. Wood fiber cement or plywood siding should not be installed directly over the foam writes senior editor martin holladay. Hardiplank is a fiber cement siding made for exterior use to cover a structure in a long lasting sheathing.

Screw the strapping through the foam to the studs. 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. Siding fastener length cmu wall spaced 16 or 24 o c.