Air, Vapor & Weather Barrier Waterproofing Systems

We offer several types of applications including fluid/spray applied membranes and self-adhering sheet membranes, fire-rated, non-permeable and vapor permeable based upon the building type and specifications.

Our expertise and reputation is a testament to the many high profile and generously praised projects we have completed since 1995. Our skilled technicians are fully trained and certified by the Air Barrier Association of America (ABAA). We install popular AVB products like Parex Weathertech, Perm-A-Barrier, Blueskin, ExoAir and others from manufacturers including Parex, STO, Dryvit, Grace, Carlisle, Tremco and Henry.

  • Air barriers
  • Vapor barriers
  • Weather barriers
  • Waterproofing membranes

Modern Wall Systems provides a wide range of solutions for waterproofing new residential construction, including…

  • Above-Grade Waterproofing – Insulated Foundation Finishing Systems
  • Below-Grade Waterproofing Systems
  • Exterior Permeable Weather Barriers

Our waterproofing and damp-proofing products are water-based and meet stringent VOC-reduction requirements. Our award-winning exterior foundation and thermal foundation waterproofing systems may offer tax incentives for energy-efficient applications. Drain problems can be solved with less gravel and less labor. Our weather-resistant barriers reduce air infiltration through exterior walls while allowing vapor moisture to escape. These barricades prevent liquid moisture from penetrating your sheathing system without the use of staples or nails. Our permanent membrane will block water penetration conditions of even 200 mile-per-hour wind-driven rain.

Above-Grade Waterproofing Systems

Horizon Foundation Finishing SystemTM provides three levels of protection: 1) Waterproofing membrane, 2) Fiberglass insulation board, 3) Durable, textured topcoat. In tandem with the Tuff-N-Dri Warm-N-Dri system, the Horizon system meets the Energy Star requirement of achieving energy-efficient points. Horizon not only minimizes condensation in the lower level of the home but also greatly reduces heat loss, allowing for a more comfortable living space.

Below-Grade Waterproofing Systems

Tuff-N-Dri H8

Tuff-N-Dri Basement Waterproofing system® is North Americas’s number one brand of new basement waterproofing. The powerful combination of Tuff-N-Dri H8 membrane and the thermal and drainage Warm-N-Dri Board is key in insulating and minimizing condensation and water issues in the lower level of the home or building. Tuff-N-Dri H8 Foundation Waterproofing offers eight feet of hydrostatic head resistance while providing quick set up and consistent thickness throughout.

Watchdog Waterproofing H3

Watchdog Waterproofing H3 is a system that delivers great performance. With three feet of hydrostatic head resistance, Watchdog waterproofing is stronger, cures faster, and prevents sagging. This additional protection provides a consistent 40 millimeters of thickness throughout the coating process.

Exterior Permeable Weather Barriers


ENVIRO-DRITM is a permeable membrane that completely adheres to the sheathing. This effective seal stops water from entering while allowing vapor to escape. ENVIRO-DRI creates a more comfortable, energy-efficient home by preventing moisture-laden air from entering the house.

ENVIRO-DRI makes wraps, adhesives, staples, cutting, and material waste unnecessary. These penetrations or adhesive failure allows the water to get behind the protection, increasing the chance for future problems.