Applied properly it usually lasts one to two years.
Caulking wood siding house.
Good for gutters siding and concrete.
Siding nails should not be caulked another item that needs room to play is siding boards themselves.
Metal flashing or any metal to wood joint should not be caulked another water exit pathway that should never be sealed.
But if done incorrectly it can lend a sloppy amateurish look.
When it comes to wood or wood based materials like hardboard primer sticks better than caulk and provides a great adhesion surface for caulk.
Sometimes the old caulk in the siding joint is cracked and you need to cut the old caulk out with a razor knife.
Caulking windows to give them a finished look inside and out and seal out leaks and drafts is a fairly common diy task.
The nails holding up the siding should not be caulked.
Caulk should dry before painting over it otherwise it can cause new paint to crack and.
This could include applying caulking patching or bondo to exterior wood that has been repaired due to wet or dry rot.
Work the primer into gaps but don t try to fill them with primer.
Before caulking joints between dissimilar materials make sure that the manufacturer recommends the caulk for both materials.
They re good for easy touch ups around the house such as sealing shower tile or the kitchen sink.
This allows for the caulk to get in and fill the gap correctly.
Also avoid caulking tongue and groove siding boards together.
If the siding joint is so tight that the caulk only bridges the gap it may split again.
Prime if necessary some specialty caulks may need a primer before paint is applied but most caulking is paintable.
Best for use with aluminum metal concrete mortar plastics rubber stone vinyl and exterior wood.
Many professionals like those at james hardie also agree that you should not use caulk on fiber cement siding unless there is no metal flashing underneath.
So if caulking is part of a painting project it s best to prime before you caulk.
Basically any crack on the exterior of the house should be filled.
Caulk is a substance designed to seal a joint between two surfaces and to fill small holes.
It comes in rolls and is used most often for weatherstripping windows and doors.