The wood s structural integrity will remain unless the wood is exposed to excessive moisture which can cause curling cracking and wood rot.
Caulking cedar siding knots.
I m not a painter but i do install cedar siding and i always caulk all the joints.
If the siding is unpainted stick with epoxy filler it s.
When deciding how to use caulk on your siding however it is generally more important to consider where you should not use it.
It is generally not a good idea to use caulking on wood siding.
If overused or incorrectly placed siding caulk can cause more damage to your exterior than good.
If i am installing a prefinished product which i do mostly i use a color osi match caulk.
Fill cracks in painted siding with either exterior acrylic latex caulk caulk or with epoxy wood filler which is a better choice.
It dries in just an hour and serves for up to 35 years.
This is a high performance formula that comes in a 10 1 oz bottle.
If i install a non finished product i usually go with a 3m paintable caulk.
Anything that might one day allow moisture to penetrate will be sealed.
Imperfections on the siding gaps cracks failed knots etc.
Grumpy chicago gutters.
Left unstained cedar s red hue will fade to gray within about a year.
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.