04 00 00 Masonry

Category Archives: 04 00 00 Masonry

Designing Masonry Buildings to the 2012 Energy Code

All images courtesy Mortar Net Solutions

The 2012 International Energy Conservation Code (IECC) will bring tremendous change to the way buildings are designed, constructed, and renovated. For example, the insulation requirements for masonry construction have been written to higher performance levels. The prescriptive energy code for the masonry industry is based primarily on the requirement for continuous insulation (ci) within the wall envelope. This becomes an issue when one looks at the standard concrete masonry unit.

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Specifying Stone Design: New technologies increase opportunities

Photos © Steve Maylone

This article looks at stone design, highlighting case studies that demonstrate success with sandblast projects. It also examines new technologies that have improved detailing for stone manufacturers. Finally, the piece explores sustainably green aspects of natural stone and how its use must include an assessment of the building material in terms of its complete environmental impact, from quarrying and fabrication to transporting and installation.

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Selecting Joint Reinforcement

Photo courtesy Neumann/Smith Architecture

In a time of increasing complex walls, the masonry industry is striving to rediscover the simplistic principles that made it the material choice of the greatest civilizations in history. The principle “less is more” holds true when it comes to selecting wire reinforcement for reinforced masonry wall systems. Standard 9 gauge ladder shape wire fabricated with butt-welded cross-rods spaced 16 inches on center better facilitates code required rebar centering, grout flow and consolidation, and shrinkage control.

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Weep Now or Weep Later: Moisture management and risk zones for masonry

All images courtesy Masonry Technology Inc.

Weeps should create an opportunity for the liquid water that has drained down to the top surface of a flashing to exit the core or cavity of the masonry wall on the top surface of the flashing. Unfortunately, numerous unfortunate conditions have occurred because of incorrect uses of materials and devices, or detailing errors. This article examines what design professionals need to know about allowing moisture to escape their masonry.

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Weep Now or Weep Later: Of Ropes and Tubes

All images courtesy Masonry Technology Inc.

One of the first commonly employed weep details was the sash cord or ‘rope’ weep. In some cases, this detail was expanded with sections of the sash cord laid in the cavity and then extended through the wall, usually at a head joint. In other cases, the sash cord was fastened vertically up the backside of the cavity. In yet other instances, it would be pulled out of the wall, leaving a hole through the head joint or bed joint of mortar.

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Troubleshooting Exterior Masonry Walls

Photo © BigStockPhoto/Ronald Hudson

This article focuses on original building design evaluation (including expansion joints) and diagnostics of cracks in brick veneer masonry walls. Proper rehabilitation techniques are reviewed, along with solid masonry wall system drainage design, and evaluation of diagonal, vertical, and horizontal cracks (including simple water penetration testing and knowledge regarding freeze and thaw).

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