Replacing Rotted Masonite Siding

If needed replace the sheathing behind the siding using 1 2 plywood covered with builder s felt or housewrap.

Replacing rotted masonite siding.

Consider replacing rotted areas with fiber cement siding. Level the wood. How to repair masonite siding with putty step 1. What is masonite siding and why was it discontinued.

Apply a drop or two of exterior caulk on the back of the replacement. After you have the dimensions for the replacement use a utility knife to cut a fresh piece of masonite siding as per your specifications. Masonite siding can be described best as sawdust glued together with a paper overlay. Just 20 years after its inception did it get discontinued due to its susceptibility to water damage and long term rot.

As you can see in the example above the bottoms can swell due to moisture and the. How to repair masonite wood siding 1. Cut fiber cement siding. To catch the problem early keep looking for any discoloration in the siding.

Scrape off flaking paint and debris from the damaged area using a paint scraper. Scrub the brush around the hole to dislodge dirt and debris. Remove the deteriorated hardboard siding using a pry bar and chisel being careful not to damage the good siding above it. Masonite or hardboard siding was incredibly popular in the 80s through the 2000s.

How to remove and replace siding. Replace the siding when the damage is large scale or beyond repair. However before hiring a contractor for siding replacement it is important to get a better understanding of what masonite siding is. If needed replace the sheathing behind the siding using 1 2 plywood covered with builder s felt or housewrap.

If the damage is caught early and only a small part of the siding is affected then only that part can be replaced. If the nails do not stay put hammer additional 2 inch nails beside the original nail to. Remove the deteriorated hardboard siding using a pry bar and chisel being careful not to damage the good siding above it. Thinner than most hardboard but it works in many cases has a comparable cost is highly rot resistant and carries a 50 year warranty.

Scoop a golf ball sized. However replacing the whole structure is pretty expensive. Slightly overlap the putty onto the surrounding hardboard by 1. Hammer down loose nails.

Cut the fiber cement siding to length. Clean the hardboard with a stiff bristle brush.