People who don’t like to detail flashing tape around pipes and other curved wall penetrations might consider Zip Liquid Flashing. This liquid-applied product is being marketed as a complement to flashing tape and will waterproof and air-seal penetrations in one step. The maker’s engineers told us that it combines the waterproofing properties of polyurethane with the long-term durability of silicone. The application temperature range is 35°F to 110°F. It can be applied to wet surfaces and dries tacky in 15 minutes. It’s sold in 20-ounce sausage tubes or cartridges; a tube costs around $20.
Huber Engineered Woods, 800/933-9220, huberwood.com.