Caulking Cedar Shake Siding

The answer depends on the manufacturer and installation method used when the siding was first installed.

Caulking cedar shake siding.

If you re thinking of installing shingle siding it s important to note that this option can be used only if the sheathing is boards plywood or osb. The western red cedar lumber association publishes a number of downloadable booklets concerning the design installation and finishing of cedar siding. Left unstained cedar s red hue will fade to gray within about a year. When you try to restrict either it is at your peril.

Butyl rubber is sometimes recommended for exterior siding since it s a specialty outdoor caulk that can withstand changes in temperature and repeated exposure to the elements but you can choose any exterior caulk that will bond to your siding just make sure to read the labels and spot check on an unseen portion of your siding to make sure. For curb appeal that will make your house stand out in the neighborhood consider installing shingle siding. Although cedar shingles take more time to install than most other types of siding they lend a rich textured look to your exterior. Think of a wood home as a living thing.

Natural siding boards are designed to expand and contract with the elements and we do not want any adhesive to prevent their natural movement. It performs excellently for shutting out the moisture during heavy rains and bars pests and mold from gaining a stronghold. The wood s structural integrity will remain unless the wood is exposed to excessive moisture which can cause curling cracking and wood rot. Generally we do not recommend caulking butt joints on cedar siding.

Also it is versatile so that you can use it for windows sinks and other areas in and around the. Caulk by its adhesive nature will try to limit this movement leading to widespread failure and cracking in the caulk over time. 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. Recommendations for caulks are located on page 10.

If i install a non finished product i usually go with a 3m paintable caulk. I m not a painter but i do install cedar siding and i always caulk all the joints. The best caulk for cedar siding has unique properties that keep it looking great and structurally intact for a long time. Below is a link to their installation guide.

If i am installing a prefinished product which i do mostly i use a color osi match caulk. It needs to move and breathe. Other technical resources can be found elsewhere on their website. The siding expands and contracts with temperature and humidity.