Blindside waterproofing systems are among the most difficult to design and install. These waterproofing and drainage systems are placed before the structural walls are poured, which means they must be installed over a soil retention system rather than concrete or masonry. That retention system—whether it be lagging beams, sheet pilings, shotcrete, or compacted native soils—is typically rough, uneven, and subsequently requires extensive detailing.

The first step in determining the proper air/vapor barrier is establishing the planned use of the building and considering the climate zone. Knowing the temperatures and general climate conditions the building will be exposed to is key in deciding what products to use. It is also imperative to regard the barrier as part of the entire wall assembly; the barrier material and all system components and accessories should be tested. The air/vapor barrier must also be continuous around the entire structure – including window wells and corners, roof joints, and flat areas of the building. Today, more clients seek out a permeable air and vapor barrier to be made from recycled products, in keeping with current concerns regarding sustainability.

Zero lot line (ZLL) below-grade construction allows building teams to maximize square footage by building directly up – or extremely close – to the property line. This method is often used in urban environments where space is at a premium. Many waterproofing consultants make the decision to use waterproofing systems comprised of redundant layers of materials to resist soil and water ingress or to block potential contaminants, thereby increasing the chances of success for the life of the zero lot line building envelope. Redundant systems can be tailored to specific site needs, which can potentially change as the construction process unfolds.

WICHITA, KS… EPRO Services, Inc. (EPRO), an innovator of composite waterproofing, methane mitigation, and vapor intrusion systems, provided blindside waterproofing and building envelope protection for 1840 N. Highland Ave.

EPRO is excited to announce and welcome Adam Richards, P.E. to the team as Technical Sales Manager. Adam will be responsible for developing new markets, identifying strategic partnerships and properly aligning EPRO’s composite waterproofing and vapor mitigation solutions to meet customer needs.