Natural siding boards are designed to expand and contract with the elements and we do not want any adhesive to prevent their natural movement.
Caulking stained cedar siding.
Don t use a filler like wood filler as it will not move with the cedar siding.
Oil stains that are.
Corner boards are applied to the sheathing with siding fitting tightly against the narrow edge of the boards allowing for expansion and an adequate caulking bead.
Thickness of the corner board will depend on the thickness of the siding.
If i install a non finished product i usually go with a 3m paintable caulk.
While cedar stands up to the elements fairly well on its own putting a seal or a coat of paint on it can enhance the color and protect the wood from inclement weather.
The western red cedar lumber association publishes a number of downloadable booklets concerning the design installation and finishing of cedar siding.
Cedar is a beautiful wood and can be kept that way when stained properly.
The answer depends on the manufacturer and installation method used when the siding was first installed.
Other technical resources can be found elsewhere on their website.
The black coloring or darkening of the cedar siding is caused by mold growth.
Recommendations for caulks are located on page 10.
To stain cedar you must understand your needs how to prepare the wood for the process how to stain it the best brushes to use and how to clean up after.
I m not a painter but i do install cedar siding and i always caulk all the joints.
The most common are 3 4 inch or 1 1 4 inches thick.
Below is a link to their installation guide.
Generally we do not recommend caulking butt joints on cedar siding.
Giving your cedar siding a nice tint will add beauty durability and value to your home.
Me i would powerwash the house let dry overnight caulk the seams and around the edges with cedar colored caulk then stain.
The wood s structural integrity will remain unless the wood is exposed to excessive moisture which can cause curling cracking and wood rot.
If i am installing a prefinished product which i do mostly i use a color osi match caulk.
Because the staing will tint the caulk slightly.
Left unstained cedar s red hue will fade to gray within about a year.
