How To Repair Hardie Siding

Blind nail the fiber cement siding in place starting with the bottom piece.

How to repair hardie siding.

Push the blade down so that it will cut into the board and then pull the trigger. This cleans all visible dirt and residue from the surface and prepares a clear foundation for caulking. Dents chips cracks and other minor surface damage in james hardie siding and trim products can be filled with cementitious patching compound. Use a 4 foot level to check and then hammer in another nail.

Use a plastic putty knife to apply the patching material to the damaged area filling in the area and shaping the patch to match the original contours of the siding. Although it is convenient hardiplank siding is still susceptible to cracks which requires a caulking treatment to repair. Hardie board siding usually cracks due to poor installation. Hold the grinder with both hands and cut down into the board.

The average depth for floor hardie board is a 1 4 inch and for walls it is 1 2 an inch so cut accordingly. And it may take time to see it appear so you won t know right away jamie reads. Wash down the exterior surfaces every 6 to 12 months with a garden hose to remove dirt and debris gently clean your siding with a soft brush or wet soft cloth in a side to side motion in the direction of the plank siding. Repair or patching fiber cement board siding.

If you re replacing more than one board in a run simply hammer a nail into the top corner to support it and then move half way down the board. Be sure the top one goes through both boards. Step 1 inspect the hardieplank siding on the exterior of your home for loose boards which will leave your house open to weather and insect damage. The james hardie company makers of hardieplank recommends the use of a cement patch product made of an acrylic mortar compound for patching their siding products.

Cut the fiber cement siding to length wear approved dust protection. You can easily fix it by cleaning it and then using caulk to patch the gap. Then hammer away on the rest of the board. Step 1 dampen a dry rag with denatured alcohol and wipe the area surrounding the crack.

Remove any nails from the top piece of good siding. The original installer might have accidentally installed a nail too close to the edge of the siding causing a crack. Attach the appropriate blade to the angle grinder. Loose boards are repaired by face nailing them in place.

Allow the patch to thoroughly dry and apply another thin layer of patching material if the first layer shrank during the drying process. Acrylic mortar compound can be found at most home improvement retailers and hardware stores under various brand and trade names.