How To Repair Fiber Cement Siding

14 see james hardie technical bulletin 17 for painting and other fiber cement repair recommendations.

How to repair fiber cement siding.

Blind nail the fiber cement siding in place starting with the bottom piece. 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. Scoop up some of the. Sealing caulking fiber cement siding.

Allow the patch to thoroughly dry and apply another thin layer of patching material if the first layer shrank during the drying process. How to repair fiber cement siding. Face nail the top piece of fiber cement siding through the old siding. Mix a solution of 1 2 cup trisodium phosphate and 1 gallon of water.

This putty should be included in every fiber cement repair kit. The patch is mixed formed and spread to match the contours of the board. 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 2 replace the caulking.

Step 3 repair any holes. To repair hole in fiber cement siding there is a special putty that can be used as a patch. The company recommends 100 acrylic paint. Painting fiber cement siding.

Cut the fiber cement siding to length wear approved dust protection. Put on a pair of rubber gloves. Before you do anything else you want to get the siding nice and clean. Step 4 apply fresh paint.

Mix the latex modified cementitious patching compound in a small bucket according to the manufacturer s. Step 1 clean the siding. How to repair cracks in fiber cement siding step 1. How were butt joints and end joints treated flashed caulked.

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