How To Repair Fiber Cement Siding

You then let the patch dry and sand it to blend into the surrounding parts of the plank.

How to repair fiber cement siding. Not only will that automatically improve its. Prime and paint new siding to match the old. The company recommends 100 acrylic paint. 14 see james hardie technical bulletin 17 for painting and other fiber cement repair recommendations.

Face nail the top piece of fiber cement siding through the old siding. To repair hole in fiber cement siding there is a special putty that can be used as a patch. How were butt joints and end joints treated flashed caulked. Painting fiber cement siding.

How to repair cracks in fiber cement siding step 1. Scoop up some of the. The patch is mixed formed and spread to match the contours of the board. Allow the patch to thoroughly dry and apply another thin layer of patching material if the first layer shrank during the drying process.

Mix a solution of 1 2 cup trisodium phosphate and 1 gallon of water. Blind nail the fiber cement siding in place starting with the bottom piece. Step 2 replace the caulking. Step 3 repair any holes.

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. Sealing caulking fiber cement siding. Cut ends of fiber cement siding should have been sealed using 100 acrylic latex primer or paint certainteed or in some cases using an approved caulk wiped. Step 4 apply fresh paint.

This putty should be included in every fiber cement repair kit. Mix the latex modified cementitious patching compound in a small bucket according to the manufacturer s. How to repair fiber cement siding. Take care when re painting to avoid incompatible paints.

Cut the fiber cement siding to length wear approved dust protection.