Installing Hardie Siding Over Foam

When applying james hardie siding directly over the combined thickness of foam sheathing continuous insulation and other non nailable substrates e g.

Installing hardie siding over foam.

It then pops the nail right through the siding. Insulation is everyone having as much hell as i am installing fiber cement siding over 1 2 foam. My entire house is hardie over 3 4 foam that was gun nailed. Siding over rigid foam view all 5 photos play slideshow.

Hardiplank lap siding can also be installed over foam insulation up to 1 thick irregularities in framing sheathing and or foam insulation can mirror through the finished application. How to install rigid foam under siding. Lower the pressure on the gun and make sure the gun has depth of drive. I think there s tar paper in there somewhere but they were pretty casual about putting it on at least 4 of the bottom of the walls exposed in most places.

I have tried several different air setings for my compressor. These discussions will be quite common. Hardiplank lap siding can be installed over braced wood or steel studs spaced a maximum of 24 o c. Then i discovered that lp s installation instructions specify 1 5 inch x.

Our company plans on removing old siding installing new 1 foam then new hardi plank siding. Installing hardie over 1 quot. We had hoped to use 1 5 to 2 inches of eps rigid foam to the exterior of the sheathing then 3 4 inch x 4 inch plywood furring strips then lp smartside lap siding. Siding over rigid foam a vented drainable air space keeps wood siding dry and stable.

Many houses built today have a double wall type of insulation with fiberglass batts fastened between the studs on the inside and rigid foam board over. We re building a new home sw virginia with 2x6 studs on 24 inch centers. Becouse the foam compresses. We put 2 x 4 furring studs laid flat over the foam and attached to the wall studs with 1 5 inch foam between the furring studs rain screen over everything and finally the lp siding.

Or directly to minimum 7 16 thick osb sheathing. We will be leaving in the old windows. This only increases the wall thickness 3 4 inch vs the furring strips william costello was planning to use and would only require increasing the interior window sill by 3 4 inch. We knew we had to use the 76 series smartside product for the 24 inch centers.

Things are going to get interesting when iecc 2012 is adopted which requires exterior foam zones 6 and up. Gypsum sheathing up to 1 inch thick the foam sheathing and other non nailable substrates do not have nail holding capacity.