Masonry Magazine December 2004 Page. 26
The Straight Strip Trap
THE TRAP: STRAIGHT STRIP
Independent testing results, available at www.mortarnet.com/mms, show that straight strip mortar deflection devices DO NOT WORK because they create a solid mortar dam that inhibits water flow to the weep holes. Moisture that cannot drain properly is forced to the interior wall, thereby contributing to both structural damage and the possibility of mold growth.
THE SOLUTION: MORTAR NET®
Mortar Net's patented dovetail shape breaks up mortar on two levels, ensuring that mortar does not block water flow. In combination with its 90-percent open-mesh weave, Mortar Net allows water to rapidly and easily move directly through the material and out the weep holes to the exterior of the wall.
It also allows for proper air movement in and out of the cavity. This eliminates pressure differentials that force moisture into the cavity, thus promoting rapid drying of the wall.
The Mortar Net drainage system is the most effective system in the industry and consistently outperforms every straight strip product, every time.
Specify Mortar Net in all of your new cavity wall construction and enjoy quality masonry that will stand the test of time.
For more information call 800.664.6638.
STRAIGHT STRIP: Mortar accumulates on one level creating a dam that blocks water flow to the weep holes.
THE TRAP: The Straight Strip Device
SOLUTION: Mortar Net Device
MORTAR NET: Mortar Net's dovetail shape breaks up mortar on two distinct heights, ensuring a clear path for water to migrate out of the wall.
Weep Vent
There are two popular mesh drainage products on the market today, but that's where their similarities end. The success or failure of these products is directly related to one important characteristic: shape.
Trapped water on the interior wall can result in water damage.
Straight strip
See the test results at www.mortarnet.com/mms ✓ Mortar Net
The Difference Is In The Cut