WATERPROOFING
Building science recognizes the need for such a barrier behind the siding to keep water from reaching the interior sheathing or framing.

This article will take a look at what constitutes a WRB, what types are available, what s

Masonry installation
See www.icc-es.org/criteria/pdf_files/AC38.pdf for more information about ICC-ES's "Acceptance Criteria for Water-Resistive Barriers."

SPECIAL CONSIDERATION needs to be paid when applying housewrap to buildings with bri

Performance and Economy

THROUGH THICK AND THIN™

Everyone wants more from less. ENERSHIELD® gives you exactly that. Premium polymer-based formulations allow optimized application thickness on sheathing and masonry, for fast, easy instal

Air Barriers: Impermeable or Permeable?
BY JANE WU

AIR INFILTRATION OF BUILDINGS CAUSES SIGNIFICANT HEATING/COOLING ENERGY LOSS and permits moisture and condensation to collect in the walls. This interstitial condensation creates significan

As warm, moist air on one side contacts the cool or cold, dry air on the other side, vapor condenses - right inside the wall cavity.

Diffusion versus condensation

TEMPERATURE AND MOISTURE GRADIENTS also are the key factors d

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 mate

ENVIRO-BARRIER HB
Non-Asphalt Air/Vapor Barrier System

HOHMANN & BARNARD'S Enviro-Barrier™ System is a non-asphalt solution for applying above-grade air & vapor barrier protection. Enviro-Barrier™ includes an air/vapor barrier, synthetic ma

January 2012
MASONRY
The Voice of the Masonry Industr
Volume 51, Number 01

Eye on
Education

INSIDE
Scaffolding
Air Barriers
Mast Climbers, Telehandler
& Cranes
Visit us online at:
www.masoncontra

CHIMNEYS AND FIREPLACES
smoke emissions will look first to the existing voluntary program.

Why it matters
WHY SHOULD THIS BE of importance to mason contractors, especially considering that wood-burning fireplaces are not being restrict

By Tim O'Toole
MCAA's Favorable EPA Ruling

Wood-burning fireplaces is one method that could be used to reduce wood smoke emissions. Included in the Phase 2 Qualified fireplace list is a site-built, cinder block-and-brick masonry fireplace.

Drainable

IS
Sustainable
Why the best waterproofing
system includes a drainage
plane system.

BY MARK A. JOHNSON AND
JOHN KOESTER
ART BY ADAM SKODA

MOST EXTERIOR SURFACES OF A VERTICAL WALL SYSTEM DO ALL

WATERPROOFING

The third section, the weather-resistant surface, can be a waterproofing product (usually a sprayed or rolled on chemical compound) or a weather-resistant material (two layers of construction paper or a building wrap). It also can

According to the HUD's Path Project (www.pathnet.org), "Moisture, in all of its physical forms, is commonly regarded as the single-greatest threat to durability and the long-term performance of the housing stock. Excessive exposure to moisture

WATERPROOFING
Knowing how each product used in the construction of the building reacts with the rest of the products is critical.

It's a nice sunny day, so a rider decides to go for a motorcycle ride. Being an experienced motorcyclist, he a

Subsection 9.27.2.3-1b of the "National Building Code of Canada 2005, Vol. 1

Subsection 9.27.2.3-1b of the "National Building Code of Canada 2005, Vol. 1 states: "The second plane (the drainage plane) of protection shall be designed and constru