You will need some 1x scrap to put into the hole and then screw through the siding into the 1x piece of wood to make a backer for the replacement piece.
How to repair a hole in masonite siding.
Slightly overlap the putty onto the surrounding hardboard by 1.
Painting will make it resistant to damages caused by weather fluctuations as well as insect infestation.
Level the wood.
Scrub the brush around the hole to dislodge dirt and debris.
Hammer down loose nails.
Locate and cut the damage step 1.
Let dry then use a utility knife to cut away any excess caulk.
Scrape off flaking paint and debris from the damaged area using a paint scraper.
Pack wood putty into the hole using a trowel.
How to repair masonite siding with putty step 1.
Cover the hole from the back side with foil tape then put the siding back where it belongs.
Locate and cut the damage in order to go about your repair project effectively mark out the area that has been.
Clean the hardboard with a stiff bristle brush.
Remove the damaged area loosen the nails found at the top of the damaged siding using a pry bar and hammer and.
Apply a generous amount of caulk to the back side of your scrap piece of siding and run a bead of caulk around the hole opening.
Put the piece in place screw it to the backer caulk and repaint.
If the nails do not stay put hammer additional 2 inch nails beside the original nail to.
A siding zip tool pops the piece off from the bottom edge.
Place the siding piece over the hole and press firmly to seal.
Spread a thin layer of tinted caulk over the exposed foil tape or paint the caulk to match the siding once the caulk dries.
Scoop a golf ball sized.
Using putty for holes present in the masonite helps in retaining the structural stability.
Caulking will help negate the structural instability if any.