For deep holes build up the patch with several successive layers allowing each to dry before applying the next.
How to patch hardboard siding.
Any buckled or moisture damaged hardboard siding must be replaced.
Recognized for its density strength and traditional wood appearance masonite hardboard is a partially synthetic alternative to solid wood.
Repair masonite hardboard siding using basic supplies like this trowel.
Sand the area smooth and then paint it to match the rest of the siding.
There s one more thing homeowners like about fiber cement siding.
Buckling is usually another sign of moisture.
Siding on houses invariably will get damaged during the lifetime of the house.
Apply 2 layers of acrylic latex primer using a paintbrush.
Use sandpaper to smooth and even the entire hardboard siding surface.
Whether you have shingles clapboard fiber cement or vinyl siding this video.
Use the trowel or a flat stick to shape the compound to fit the style of the siding.
Apply the wood putty in layers when filling holes exceeding 1cm.
It holds paint better than wood.
Let each individual layer thoroughly dry before applying the next layer.
Allow the compound to dry according to manufacturer s directions printed on the container.
Though it used to be a little more expensive than hardboard siding fiber cement siding now costs less in my area.
5 apply the compound.