Masonry Magazine August 2008 Page. 33
Shown is non-asphaltic copper flashing. These aren't the air barrier systems themselves, but flashing that is used with the air barriers.
Photo courtesy of Advanced Building Products.
Once moisture gets inside a wall and reaches the plywood sheathing, the moisture will go through seams where the plywood isn't tight, get between the sheathing and the exterior wall, and will then find weep holes and failed mortar joints to get outside, PROSOCO's Henry says.
"It's not a straight path," he says. "That warm, moist air passing from inside to outside through that torturous little path is letting energy escape. You're letting your energy dollars escape just like if you left a door or window open."
Condensation can also create problems, Henry explains. As warm, humid air leaks through gaps in walls into the wall cavities and meets cold surfaces chilled by the cold outside air, condensation occurs, just like on a glass of ice water in a warm room.
Pre-Formed Flashing
No job site cutting, bending or forming saves time and money.
• Corners, drip edge, end dams and mechanically keyed flashing offer the perfect fit without the extra work.
• Aesthetically appealing, durable and simple to use. The beautiful way to maintain a watertight environment.
Control & Expansion Joints
Control expansion, contraction and cost with durable, long-lasting joint products from Sandell.
• Efficiently seals joints and allows expansion or contraction of concrete or masonry.
Easy-to-install backer rod, cork, rebonded rubber, neoprene, polyethylene foam and PVC or rubber control joint.
Air-Tight™ System
Seal the deal on long-term reliability and code compliance.
• Air-Tight Self-Adhesive Membrane wraps the structure to create an effective barrier against air, moisture, pollutants and other suspended particulates.
• Air-Tight Liquid seals the exterior surface against water in a variety of applications including wood, metal, concrete and sheeting. Applies with brush, squeegee or spray. Dries in 15 minutes, cures within 24 hours.
SANDELL
CONSTRUCTION SOLUTIONS
System Reliability Built In