Caulking Cedar Siding Joints

The hole should be about 3 16 of an inch for most caulking joints.

Caulking cedar siding joints.

When you try to restrict either it is at your peril. My question is limited to the seams in which the siding contacts vertical trim. Butt joints are a perfect example of poor joint design they re too small to accommodate a bond breaker so the caulk can t stretch properly once applied but they re also too large to simply leave alone. This is a high performance formula that comes in a 10 1 oz bottle.

Most other areas were caulk is necessary should be lightly smoothed with your finger. Generally we do not recommend caulking butt joints on cedar siding. Some of the most commonly caulked areas of siding include both corners and crevices as well as some butt joints and window and door trim boards. I am in agreement with martin not to use caulking as it seems to cause more.

If you re in the market for the best exterior caulk for cedar siding you will appreciate what the red devil 077010 has to offer. I m about to put up siding on a building enclosure that includes a wrb taped xps and furring strips. It needs to move and breathe. A lot of moisture from rain snow misdirected sprinklers or exuberant water fights can get in there enough to do some serious and expensive damage.

I m not a painter but i do install cedar siding and i always caulk all the joints. Where two pieces of siding meet. If i install a non finished product i usually go with a 3m paintable caulk. Natural siding boards are designed to expand and contract with the elements and we do not want any adhesive to prevent their natural movement.

The answer depends on the manufacturer and installation method used when the siding was first installed. Should they always be caulked. Caulk by its adhesive nature will try to limit this movement leading to widespread failure and cracking in the caulk over time. Siding caulk can be used on several different areas of your exterior siding to help prevent water damage and moisture buildup.

All butt joints will be flashed. Butt joints but not all butt joints. The siding expands and contracts with temperature and humidity. Think of a wood home as a living thing.

If i am installing a prefinished product which i do mostly i use a color osi match caulk.