Cedar Lap Siding Installation Blind Nailing

Siding shall be installed with top blind nailing with the nails placed 3 8 inch 10 mm from either end and a minimum of 3 4 inch 19 mm from the top edge of the board.

Cedar lap siding installation blind nailing.

Gap at butt joints and ends. Installing cedar siding planks requires at least three workers. For cedar siding over wood sheathing nailed at studs for application over foam sheathing add the thickness of the foam to the tabulated nail length. Apply siding over approved structural sheathing.

Lap siding can be installed horizontally or vertically. Use only the nails specified in these instructions. Maximum nail spacing is 16 in. Install a minimum 3 16 in.

In horizontal application start at the bottom and work up with the groove edges facing downwards. Nails must penetrate 1 1 4 inches into solid wood. Nails must penetrate wood framing 1 1 2 in. For siding up to 6 inches wide use one nail one inch up from the lap.

Do not use staples. Bevel siding should be face nailed to studs with 1 1 4 inch penetration into solid wood using one nail per piece spaced at a maximum of 24 inches on center. Use an air nailer if possible to speed nailing and minimize damage to siding surface from hammer dents. This is particularly important for vertical installation.

Take care not to nail through the overlap of two pieces. Do not reduce the siding overlap recommendations given in the installation sections of this publication. Siding up to 6 inches wide can be blind nailed with one siding nail per bearing toe nailed through the base of each tongue. For horizontal applications start with the bottom course and work up with the channels pointing upwards.

Cedar siding should be securely nailed to framing members. Allow a 1 8 inch expansion gap between pieces if the siding is air or kiln dried. Do not nail through overlaps. When butt jointing siding cut ends at 45 degree angles to form an overlapping joint.

Wall construction like all siding materials western red cedar performs best when installed properly on a suitable frame. Wider siding should be face nailed using two nails per piece.