Installing Fiber Cement Siding Over Wood Siding

Installing fiberboard cement siding fiberboard cement siding looks identical to wood once it s painted.

Installing fiber cement siding over wood siding. Adding another layer onto the original siding might cover up existing issues some of which can be serious like previous water infiltration or foundation problems. Putting up trim before installing fiber cement siding. Nails used to hang fiber cement siding shall penetrate at least 1 into the studs or the structural framing. Corners should be at least thicker than two stacked pieces of siding to allow room for caulking.

These can be made from wood vinyl or thicker fiber cement products such as hardietrim. Attach a horizontal strip of wood lath that s 0 25 in 0 64 cm thick and 1 25 in 3 2 cm wide directly above the chalk line. If the cement siding is to be installed over wood sheathing 7 16 osb or plywood at a minimum it is recommended to use a 6d nail. Nail strips of wood lath where the lowest siding course will hang.

Some fiber cement panels act as a rain screen system so when retrofitting fiber cement onto wood or any other material the substrate should be in great shape prior to installation. Remember that the siding is hard so be sure the nails are located at the right place before driving them. Begin by installing the inside and outside corners on the wall.