How to Create a False Log Exterior

Sand the entire exterior where the log veneers will be applied. Use 60-grit sandpaper or an electric sander for a quicker job. Wiping down the entire surface from the top down removes sawdust.

Cover the surface with lath. Overlap the lath by at least 4 inches each time you need to make a seam. Bend the lath around corners, taking care not to leave a seam on a corner. Cut or bend the lath as needed making it fit to the wall. Keep it tightly stretched across the wall by drilling it in place with 3-inch, galvanized wood screws threaded through plastic washers. Space the screws in a 12-by-12-inch grid, adding additional screws as needed for complete security.

Cover the entire lath setup with a one-quarter inch mortar coating, spreading the mortar in even, smooth strokes with a trowel. Completely coat the lath and let the mortar set for 24 to 48 hours. Scratch up the surface before it completely dries and use a rake or a professional scratcher leaving a perfect surface for log adherence.

Cut the log veneers to fit the specific dimensions of the walls. Apply a one-quarter inch mortar coat to each log veneer’s rear surface of and press it firmly against the wall for 30 seconds. Work from the highest point on the wall downwards, setting each section completely before moving to the next.

Apply grout after about two hours. Spread the grout in between the logs where applicable for a more secure installation. Apply the grout in various amounts based on the desired final look, as some log homes have very heavily grouted logs while others have an almost grout-free exterior.