Trim boards that sit on top the siding.
Seal small space between outdoor wooden siding.
If you prefer weathered cedar s grey color but want a more uniform color than what comes naturally you can seal the cedar using bleaching oils.
Siding windows and door caulk there are a variety of caulk compounds that will create air and watertight seals around windows and doors.
Think of a wood home as a living thing.
These include polymer silicone polymer paintable.
These sealers deeply penetrate the wood and adhere to the porous spaces thus preventing water from penetrating through the material and avoiding decay.
Simply apply this inexpensive filler into the cracks to seal.
The best wood sealer for outdoor wood products is exterior penetrating stain.
Paint works well over it.
Fill in gaps between crown moulding and baseboards.
Best for use with drywall wood and masonry.
Cover as much of the wood as you can with sealant using a small brush to get into the spaces between panels if the siding is already installed.
Do not try to use caulk between all the boards.
Possible side effects of sealing cedar siding.
In my opinion caulking between the seams in any lapped siding either horizontal or vertical is not good practice but not just because of any potential vapor barrier effect.
Before caulking joints between dissimilar materials make sure that the manufacturer recommends the caulk for both materials.
Caulk is a substance designed to seal a joint between two surfaces and to fill small holes.
It will look like crap and on top of that like you already indicated it will be hard to put in there in the first place.
Leaving your cedar exposed to the elements for weathering can damage the cedar especially in excessively wet climates.
Sealing for natural weathering.
The siding expands and contracts with temperature and humidity.
At one point it looks like the clapboards may have extended behind the chimney for an inch or so.
Seal a door frame in place and seal the subfloor at the bottom of a door frame.
On most new homes the trim goes up after the siding is installed which creates a large gap that should not be caulked.
The proper approach to this is to install vertical strips of wood over the cracks from the outside.
It looks as though the space has been filled with mortar cement in the past but much of this has fallen out.
Use latex painter s caulk inside of doors and windows or to quickly fill cracks and holes in drywall.
Seal small cracks and gaps in your siding under 1 4 inch wide using an acrylic latex caulk.
Use top quality caulk outdoors where it needs to withstand extreme temperature changes and remain flexible for 30 to 50 years.
It needs to move and breathe.
Use to install wood paneling without nails.
Either way there s at least a half inch space between chimney edge and wood siding.