Technical Resource Guide_WEB_BEL25-D-516650 - Page 30 of 84

30 | belgard ® product installation guide | belgard.com | 877-235-4273 CEMENTITIOUS ADHESIVE OVERLAY, CONCRETE BASE INSTALLATION (LIGHT VEHICULAR TRAFFIC) INSTALLATION NOTES: • Insure that pavement is constructed with a 2 percent slope and that it is pitched away from any building. • For Cementitious adhesive and grout installation, refer to the manufacturer’s specific technical instructions for outdoor installations. • For concrete foundation slabs that are not large enough to require contraction / control joints, a minimum 4 mm (1/8” to 3/16“) grout joint is acceptable, but for larger concrete foundation slabs that do require contraction / control joints, the joint width should be 3/8”. It is absolutely imperative that all contraction / control joints be located in the joint line of installed porcelain pavers and not beneath a paver. • Caution: If a Porcelain Paver is installed over a control joint, the paver will reflectively crack along the contraction / control joint beneath it. Subgrade Concrete Base 3/8-in grout filled joint 20 mm (3/4-in) Porcelain pavers Soil Cementitous Adhesive 3/8-in Contraction/Control Joint Induced crack beneath Saw Cut Contraction Joint Saw Cut Contraction Joint, spaced according to AC and PCA guidelines and placed exactly in the center of the slab joint. The depth of the Saw Cut must be a minimum of 1/4 of the thickness of the concrete slab. Sealant Backer Rod Architectural Urethane Sealant