Rusted nails and paint don t mix well the rust rises to the surface of a paint job whether the paint is fresh or ages old even if the nail head itself.
Caulk siding nail heads.
See all paint colors warning.
Any lower and you might see a few nail heads poking through the bottom of the next board any higher and your siding is likely to be loose and.
Hardie plank siding has a nail line across the top of the board that is 1 down from the top and nails are supposed to fall between and 1 from the top of the board to give the best hold.
Steve shows how to fix rusty nail heads for painting projects.
Before caulking joints between dissimilar materials make sure that the manufacturer recommends the caulk for both materials.
To remove nail head rusting from surfaces.
The nails holding up the siding should not be caulked.
When james hardie siding products butt into wood based materials a 1 8 gap will.
A diyer or a novice painter might attempt to achieve a cleaner look by caulking the siding nails but the nail is guaranteed to push the caulking material out within a few months.
Caulk the nail heads with acrylic caulk.
Apply multiple primer coats to the nail heads.
Sand the nail heads.
James hardie believes it is good building practice to seal the joints to prevent moisture such as wind driven rain and snow from penetrating the wall cavity.
Holes in wood trim are best filled with wood filler.
A latex primers and paints will stick well to it.
The shingles are asphalt backed and this asphalt forms an adequate seal around the nail.
I must admit i ve seen many builders that do not seal the nail heads.
Nail holes in exterior surfaces just as with cracks or gaps can be dealt with using a good caulking.
Caulk is a substance designed to seal a joint between two surfaces and to fill small holes.
I heard an opposing opinion recently.
I ve always considered it necessary to caulk any exposed nail heads on a shingle roof there shouldn t be many.
The claim was that nails have to pass through a minimum of two layers of shingles.
Oil based primers and paints will also but the caulk will dry softer than the oil based primer or paint so if someone presses on a covered nail head with a fingernail the oil based primer or paint will prolly crack.
How to fix it.
Manufacturers caulk and sealant recommendation sheet s 100b issued july 2000 application.
Nail holes in interior walls can generally be filled with shrink free spackling by overfilling the hole slightly then sanding smooth once it s dry.
The advantages of using a latex caulk is that.
Siding nails should not be caulked another item that needs room to play is siding boards themselves.
Apply a rust inhibitive or stain blocking primer to the nail heads and surrounding area.
