ENERGY EFFICIENCY LAB HOME FOUNDATION WALL R The foundation wall mock-up Through-Wall Flashing examines the transition between • Self-adhesive L-shaped the poured concrete basement flashing and the high-R, above-grade • Collects water traveling down wall selected for the lab home. wall behind brick and drains it By constructing this detail to exterior via weep holes of the home in the IBACOS facility, several constructability issues were revealed and then resolved long before construction on the home ever began. These issues included how to maintain a continuous air barrier, how to properly manage bulk water, and how to correctly install the brick façade.

Rigid Insulation Board • XPS insulation board installed Brick Ledge against foundation from top of • Consistent 6” width around brick ledge to top of foundation foundation wall after waterproofing is applied • Allows for 4” of bearing for • Helps reduce potential for brick, 1” of insulation board, condensation along junction of sill and 1” air space behind plate to foundation wall brick for drainage

Drainage Board Core Vents Capillary Break • 100% post-consumer recycled • Plastic woven mesh • Waterproof foam products Footing Drain core vents instead of membrane installed • 1” thick mat helps promote • Piping runs parallel standard plastic core over top of footing drainage of bulk water along to footing to drain vents prior to placing foundation wall down to footing bulk water away from • Prevent insects, foundation walls drain foundation debris, and mortar from • Prevents moisture • Protects waterproofing • Reduces hydrostatic blocking weep holes from transmitting membrane from damage pressure against the • Help make sure wall through footing and during backfilling walls cavity drains properly into foundation wall