Masonry Magazine January 2011 Page. 32
AIR BARRIERS AND
INSULATION
thermal break, plus remain both air and water
tight? Will the air barrier material have enough
elongation to handle normal building move-
ment, plus maintain its continuity at penetra-
tion points such as pipe and duct penetrations,
veneer anchor attachments, etc?
As the air barrier industry continues to
mature, commercial construction has seen a
dramatic growth in the use of fluid-applied bar-
riers, along with self-adhesive tapes. Hohmann
& Barnard's Textroflash Liquid and Textroflash
Liquid VP combined with X-Seal Transition
Membrane are examples of these products.
These types of barriers have distinct advantages
over previous materials, with an ability to pro-
vide total continuity of the barrier, as we know
the smallest of gaps can significantly reduce per-
formance.
Fluid applied air barriers for concrete and CMU back up applications.
The newer fluid-applied materials provide a "structural" build-
ing envelope barrier with continuous contact to the substrate
capable of resisting forces from wind, mechanical pressurization
and stack effect. One of the challenges associated with fluid-
applied products is the ability to control application thickness, but
with more contractors becoming experienced installing the fluid-
applied systems, that concern seems to be diminishing. Pre-instal-
The New Improved Quikpoint Drill-Mate Mortar Gun.
★ Tuckpointing
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★All types of
masonry joints
Melvin Mancia (Mason Forman)
Job: The John Winthrop School, Dorchester, Ma.
Just scoop mortar into the
three quart capacity hopper,
pull the trigger on the drill
and a continuous controlled
bead of mortar can be
applied, up to five times.
faster than conventional
pointing methods, to
any masonry application.
Quikpoint, Inc. 23 B Bradford St., Concord, Ma. 01742 USA
Phone: 978-371-3267 Fax: 978-371-2292 Toll Free USA: 800-368-2292
Web: www.quikpoint.com E-Mail: sales@quikpoint.com
30 MASONRY
READER SERVICE #165
January 2011 www.masoncontractors.org
lation meetings and jobsite inspections are becoming increasing-
ly important to verify proper installation methods. The pre-instal-
lation meeting also can determine sequencing of construction,
which can determine the best methods for detailing, especially the
detail between the wall and roof.
Self-adhesive systems, like Hohmann & Barnard's Self-Adher-
ing Air and Vapor Barrier, have been popular for many years as
well. The factory-controlled thickness is a distinct advantage of
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READER SERVICE #239
The Voice of the Masonry Industry