This is the #1 Most Common "Hardscaping" Mistake when Pouring Concrete Slabs. It's a mistake that costs homeowners double the money a few years down the road. It can be avoided and should be avoided to protect your investment in your home. Gary Whillock exposes this costly mistake and shows how to pour a concrete slab adjacent to a wall or other concrete slab and completely avoid this mistake.

BASF MasterSeal SL1 Caulk, the self-leveling caulk used to fill the expansion joint.
The above comes in 29oz caulk tubes.

Prior to this, we used BASF MasterSeal NP1, available in most areas.

SNAP-CAP (The plastic pull apart cap we used on the expansion joint)
Expansion Joint Cap
SNAP-CAP provides a time and cost-saving method for forming straight, uniform and debris-free joints of the proper configuration, ready to seal. The top of SNAP-CAP pulls free and can be discarded. The exposed concrete surfaces assure balanced adherence to the sides. It is ideal for both horizontal and vertical concrete projects. SNAP-CAP is available in four widths.

Music by BenSound

Concrete Footings for Piers, another video by GW:    • Video