Caulking Between Wood Siding

Paintable silicone caulk can be used around the outside of window units to properly seal the window and the siding edge or around the entire door unit.

Caulking between wood siding.

We have a home from the 1930 s with many gaps in exterior portland type stucco between wood and cracks within the stucco. The caulk was still perfect in the few areas i had caulked along the siding. Caulk is a substance designed to seal a joint between two surfaces and to fill small holes. It is generally not a good idea to use caulking on wood siding.

The thing is over time the chemical treatment in the pressure treated wood dries out and the wood contracts and literally gets a tiny bit smaller since it s not now swollen with moisture. If overused or incorrectly placed siding caulk can cause more damage to your exterior than good. This is a hawk eyed view of the exact information you need before choosing the best exterior caulk for windows doors brick etc. Caulk comes in two forms.

Use around sinks tubs and showers. Siding windows and door caulk there are a variety of caulk compounds that will create air and watertight seals around windows and doors. A cartridge or a squeeze tube. 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. Use top quality caulk outdoors where it needs to withstand extreme temperature changes and remain flexible for 30 to 50 years. A cartridge and caulk gun give a more continuous bead than a squeeze tube which is better for small projects. As homeowners with this kind of siding know wood naturally expands and contracts with fluctuations in temperature and precipitation.

The remaining conditions are gaps between stucco and metal pipes or roofing materials. Also avoid caulking tongue and groove siding boards together. The nails holding up the siding should not be caulked. These include polymer silicone polymer paintable.

Before caulking joints between dissimilar materials make sure that the manufacturer recommends the caulk for both materials. Moreover they are usable on wood trim concrete hardiplank rooftop stucco siding and many other outdoor caulking surfaces.