Replacing Rotted Masonite Siding

Hammer down loose nails.

Replacing rotted masonite siding.

As you can see in the example above the bottoms can swell due to moisture and the. Consider replacing rotted areas with fiber cement siding. Pack wood putty into the hole using a trowel. If needed replace the sheathing behind the siding using 1 2 plywood covered with builder s felt or housewrap.

However replacing the whole structure is pretty expensive. How to repair masonite wood siding 1. Scrub the surface of the rot or. How to remove and replace siding.

To catch the problem early keep looking for any discoloration in the siding. If the damage is caught early and only a small part of the siding is affected then only that part can be replaced. After you have the dimensions for the replacement use a utility knife to cut a fresh piece of masonite siding as per your specifications. If needed replace the sheathing behind the siding using 1 2 plywood covered with builder s felt or housewrap.

If the nails do not stay put hammer additional 2 inch nails beside the original nail to. Scoop a golf ball sized. Masonite siding can be described best as sawdust glued together with a paper overlay. Slightly overlap the putty onto the surrounding hardboard by 1.

What is masonite siding and why was it discontinued. Cut the fiber cement siding to length. Scrape off flaking paint and debris from the damaged area using a paint scraper. Apply a drop or two of exterior caulk on the back of the replacement.

How to repair masonite siding with putty step 1. Replace the siding when the damage is large scale or beyond repair. Masonite or hardboard siding was incredibly popular in the 80s through the 2000s. Thinner than most hardboard but it works in many cases has a comparable cost is highly rot resistant and carries a 50 year warranty.

However before hiring a contractor for siding replacement it is important to get a better understanding of what masonite siding is. Cut fiber cement siding. Level the wood. Clean the hardboard with a stiff bristle brush.

Just 20 years after its inception did it get discontinued due to its susceptibility to water damage and long term rot. Remove the deteriorated hardboard siding using a pry bar and chisel being careful not to damage the good siding above it.