Building a Work-Shed

Q: I’m building a work-shed supported by concrete blocks, but I live in a cold climate so I’d like to enclose the space beneath the floor to keep out drafts (and critters). What do you recommend I use that would be both economical and durable?

A: You might try using some 1/2-in. thick cement boards attached to the sill beams. Bury the bottoms of the cement board panels at least 6 inches underground, which may require cutting the panels and/or digging a trench. Your lumberyard will sell special screws for attaching the cement board to the frame. Cover the joints between panels with fiberglass tape, and mortar cement to cover the tape and corners.

Hot Product

Trex Seal Sub-Ledger Tape
Trex® Seal™ Ledger Tape

Ask any seasoned contractor where a deck is most likely to fail, and odds are they’ll point to the ledger board. If it’s not properly installed and protected from moisture, this critical connection point can quickly become the weak link in an otherwise solid structure. That’s where Trex® Seal™ Ledger Tape comes in—a moisture-blocking MVP […]

Read More >>