: Hi All....
: Hoping those of you with some experience can help...I'm working a
: building a small workshop (10 x 10 stand alone outdoor building) and
: was thinking of using 1 x 6 pine boards to cover the floor (which is
: currently 1/2" OSB over 2 x 8 joists) I was planning to leave an
: intentional gap between the boards which would then be filled with
: either mortar, concrete or a silicon based product.
Well...if you really want to fill those gaps, the obvious choice is
boat caulk. Sikaflex is one. There are others. They come in the tubes
you use with caulking guns. You can ge it in a few colors. black,
dark brown, white.
It's designed to flex with planke movement in carvel planked
boats. Wood will move during sailing or when the boat is hauled for
the season and the planks shrink during winter.
If you choose to use this stuff there are a few tricks. If you get it
on yoru clothes it's there for good. If you get it on the wood
surface you'll have to plane the surface.
so what some people do is to lay masking tape on either side of the
gap. With this stuff, to get the caulk down into the gap, you PUSH the
caulking gun. Not pull.
Then after you've caulked the gap you can run somethign like a
popsicle stick end and take out some of the caulk. This will leave a
slight depression in the caulk. When the planks swell, the depression
Naturally you only use that trick if you are laying the floor during
the dry months.
After caulking then you lift the tape.
If I lay wide pine flooring in my kitchen this is what I will do. I
don't want spilled food to get into the cracks.
Best of luck
My woodworking projects:
Replicas of 15th-19th century nautical navigational instruments:
Restoration of my 82 year old Herreshoff S-Boat sailboat:
Steambending FAQ with photos:
"Improvise, adapt, overcome."
Smithsonian Center for Astrophysics
Phone: (617) 496-1558