Caulking Between Wood Siding

The nails holding up the siding should not be caulked.

Caulking between wood siding.

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. Before caulking joints between dissimilar materials make sure that the manufacturer recommends the caulk for both materials. The caulk was still perfect in the few areas i had caulked along the siding.

It is generally not a good idea to use caulking on wood siding. These two conditions make up about 80 of our needed stop gaps. If overused or incorrectly placed siding caulk can cause more damage to your exterior than good. 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.

A cartridge or a squeeze tube. Siding windows and door caulk there are a variety of caulk compounds that will create air and watertight seals around windows and doors. Caulk is a substance designed to seal a joint between two surfaces and to fill small holes. Siding nails should not be caulked another item that needs room to play is siding boards themselves.

As homeowners with this kind of siding know wood naturally expands and contracts with fluctuations in temperature and precipitation. 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.

Use when installing bath fixtures to seal gaps between shower tiles between sinks and counters and around the base of the toilet. 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. The remaining conditions are gaps between stucco and metal pipes or roofing materials. We have a home from the 1930 s with many gaps in exterior portland type stucco between wood and cracks within the stucco.

A cartridge and caulk gun give a more continuous bead than a squeeze tube which is better for small projects. Also avoid caulking tongue and groove siding boards together.