Masonry Magazine November 2012 Page. 22
AIR BARRIERS
The air barrier should be firmly adhered to the wall surface; this is especially critical in wall designs with an air space between the air barrier and the exterior cladding. Wall components and potential for corrosion on corrosive materials. The report also identifies how much energy would be required to maintain the specified interior temperature during a one-year period.
Other important considerations FOR ANY AIR BARRIER to be effective in preventing air leakage, it must be continuous as vapor drive can find even the smallest opening.
Branding
Blueskin SA and SA LT Air and Vapor Membranes
Henry Co.'s Blueskin SA and SA LT 18-inch and 36-inch-wide sheet-applied, non-permeable air and vapor barriers now are imprinted with a high-visibility, branded design that helps contractors promote their use of superior building materials. The products feature an updated Henry Blueskin logo, the product name and the slogan, "Superior Air/Vapor Barrier." The new imprint features two Henry Blueskin logos placed top-to-top on an angle in such a way that the logo can be installed vertically or horizontally and can be easily read from either position. Henry Blueskin SA and SA LT non-permeable air barrier membranes have been used to protect structures for more than 20 years, serving as air barriers, vapor barriers and rain barriers. They have been tested to resist air leakage (ASTM E 2178 and ASTM 2357), have low vapor permeance (less than 0.1 perms) and are watertight.
Blueskin SA is a self-adhering membrane consisting of an SBS rubber-ized asphalt compound laminated on a blue engineered film. Similar to Blueskin SA, Blueskin SA LT is formulated specifically for low-temperature application (minimum application temperature of 10 degrees Fahrenheit/minus 12 degrees Celsius). Blueskin SA and SA LT are designed to install on a variety of prepared substrates. They are self-sealing when penetrated with self-tapping fasteners, and are compatible with Henry Air-Bloc membranes and adhesives. They are sold in 75-foot rolls. For additional information, visit www.henry.com.
BLOK-FLASH
by Mortar Net USA
Through-wall flashing for single-wythe masonry walls
* Saves installation time over conventional methods
* Reduces thermal bridging, helping to maintain the wall's R-value integrity
* Eliminates the need for multiple sizes of architectural CMU
* Specified for many years by leading architects and retail chains
800-664-6638 MortarNet.com
Makers of Mortar Net with Insect Barrier, TotalFlash", Blok-Flash, BlockNet, HouseNet, Stone & Stucco Drain", & Mortar Net Weep Vents
Mortar Net® USA LTD.
20 MASONRY
READER SERVICE #138
November 2012 www.masoncontractors.org
The Voice of the Masonry Industry