Fiber Cement Siding Over Concrete Block Insulation

My current question concerns insulating the exterior walls.

Fiber cement siding over concrete block insulation.

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. 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. Hardiplank is a fiber cement siding made for exterior use to cover a structure in a long lasting sheathing. I ve looked at a lot of the material on building science and would like to.

Cement concrete block concrete forms. 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. Siding over rigid foam exteriors. I wouldn t hesitate to install 1 3 or 2 4 horizontal strapping 24 inches on center on top of the foam holladay recommends.

Method 1 over furring. Prefabricated fiber cement siding provides several pros and cons when applied as an exterior finish to icf. One new wrinkle for many builders is walls built with fiber insulation between the studs plus rigid foam. Current pneumatic nailers have maximum fastener lengths.

Siding fastener length cmu wall spaced 16 or 24 o c. 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. Though generally used over wooden house sheathing you can mount your hardiplank siding over brick with only few preparatory steps. Fiber cement siding comes in many colors and textures including some that mimic wood shingles.

Method 1 james hardie siding installed directly over continuous insulation c i and other non nailable substrates e g. Screw the strapping through the foam to the studs. Minimum nail length must accommodate sheathing and penetrate framing a minimum 1 inches. Fiber cement siding stands up to wind rain hail fire insects and even hurricane level storms.

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. Insulated vinyl siding is made of rigid contoured insulation permanently adhered to vinyl siding while fiber cement siding is made from a mixture of sand cement and cellulose fibers. And other non nailable substrates e g.