Berry Plastics uses material science and applications knowledge to produce products that help manage moisture, air infiltration and energy in buildings.

GreenGuard's business is to help you build the most protected and durable walls possible. Their residential line is filled with products that help block water and air infiltration and add insulating power.

Master Builders Solutions is a leading supplier of high-performance waterproofing and sealant products, air/water-resistive barriers, and liquid/self-adhered membrane flashing products that safeguard structures from the ingress of unwanted water, moisture, air and environmental contaminants. These air/water barrier systems were developed using unique Silica Fortified Technology in order to enhance installation and minimize energy loss so as to improve heating and air conditioning cost reductions.

MFM Building Products provides an entire "envelope" of weather barrier products and flashing products.

As the leader in the through-wall flashing industry York has led the charge to create flashings that are compatible with the air barriers and insulations that populate the cavity wall.