Acrylic Air Barrier Lowers Installed Costs

The acrylic air barrier resists air and water infiltration, saving energy and preventing moisture build-up.

The acrylic air barrier resists air and water infiltration, saving energy and preventing moisture build-up.

Kemper System America Inc. offers Wall Guardian FW-100A, a liquid-applied fibered acrylic air barrier that also acts as a water/weather barrier and vapor retarder. Evaluated by the Air Barrier Association of America (ABAA), it delivers air barrier performance – and value.

Wall Guardian FW-100A exceeds ASTM E2357 (Standard Test Method for Determining Air Leakage of Air Barrier Assemblies) with an air leakage rate of just 0.0004 cfm/ft2 @ 1.57 psf – 100 times better than the test requirement. Notably, the liquid-applied air barrier exceeded the standard in a single coat at 40 mils wet film thickness.

The engineered system is designed to resist air and water infiltration, saving energy and preventing moisture build-up that can lead to mildew and mold. Compared to house wraps and mechanically-fastened weather barriers, Wall Guardian FW-100A can be applied to building material surfaces with a sprayer, roller or brush.

The liquid-applied air barrier offers unified substrate protection, even on curved or other unconventionally shaped walls. The water-based coating is a low VOC product and meets LEED intent at 25 percent recycled content. The applied coating is also Class A fire rated.

In addition to Wall Guardian FW-100A, Kemper System also offers related air barrier component products through its STS Coatings line acquired in 2016. These include GreatSeal LT-100 polyether Liquid Tape for board-to-board joints, windows, doors, masonry, roof flashings, etc., and UT-40 Universal Tape for sealing cracks, transitions, penetrations and seams in exterior substrate and insulation board.

For over 60 years, Kemper System has been a leader in cold liquid-applied, reinforced roofing and waterproofing, having invented the technology. The company offers a full range of Building Envelope solutions to protect against weather, preserve the integrity of surfaces, and enhance the comfort and value of buildings. This encompasses Wall Guardian fibered acrylic air barrier, Roof Guardian Technologies elastomer-based roof coatings, and HeatBloc-ULTRATM radiant heat barrier. Other brands include COLEAN traffic coating systems, and the company flagship for exterior and interior waterproofing, Kemperol reinforced membrane systems.

To learn more, contact Kemper System at inquiry@kempersystem.net or call (800) 541-5455.

PPG Publishes Info about Water-based ENVIRON MCL Coatings

PPG Industries’ industrial coatings business has published an informational guide about ENVIRON MCL coatings, an environmentally friendly, water-based coating for application on metallic coating lines over GALVALUME coated sheet steel and hot-dipped galvanized metal.

Environ MCL products provide a permanent coating that is superior to temporary anti-fingerprint coatings available on the market and extends the life of buildings by offering lasting aesthetics with enhanced solar reflectance (SR), ultraviolet (UV) protection and corrosion resistance. Available as a clearcoat or in a selection of colors, Environ MCL coatings have a minimum SR capability of 70, which enables them to reduce energy costs and improve comfort in metal building structures.

The guide includes performance specifications with data for dry film thickness, post-cure pencil hardness, solar reflectance, salt-spray and humidity resistance, accelerated weathering, and outdoor exposure.

As a water-based product with low VOC (volatile organic compound) content, Environ MCL coatings protect the environment by encapsulating zinc from the metal substrate to eliminate toxic runoff into the water supply. The coatings also can be applied on mill coatings lines, which can reduce costs by eliminating the need to send metal to a coil coater for processing.

Typical exterior applications for Environ MCL coatings include metal roofing, agricultural buildings, and shade and shelter structures. The coatings are also suitable for interior uses such as ceiling grids, structural steel, linear panels and roof decking.