How does TPO stand up to accelerated weathering?

August 24, 2015

When it comes to roofing material, it is helpful to know the length of its lifespan—after all, no one can afford to put on a new membrane and simply wait to see how long it lasts.

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The future of roofing insulation

August 14, 2015

When it comes to insulating a facility, insulation addresses two important goals—maintaining a consistent interior temperature and preventing moisture from forming and collecting via condensation. There are several different materials and ways to protect a roof, including fiberglass, rigid board, and insulated metal panels (IMPs).

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Specifications for lightning protection

August 10, 2015

Lightning protection is a valuable investment that protects property and saves lives. Its importance has increased due to the vulnerability of data and communication equipment to surges caused by lightning.

A feature exploring guidelines on specifying lightning protection appeared in the August 2015 issue of...

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Does the client own the copyright?

August 10, 2015

Clients sometimes argue they own the copyright for their project if they contribute ideas, sketches, or other information the architect then incorporates into the drawings.

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Selecting and specifying roof coatings

July 31, 2015

Coatings have been successfully used as part of roof assemblies for more than 50 years in the United States. However, in other parts of the world, coatings have been employed for millennia.

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Risk assessment and costs for lightning protection

July 31, 2015

In our August 2015 issue, two authors explored numerous aspects of lightning protection, from functionality to aesthetics. In this complementary web article, the focus turns to risk assessment and associated costs.

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Specifying acoustical ceilings in green buildings

July 31, 2015

Until now, acoustics in commercial office buildings had not been a formal part of the Leadership in Energy and Environmental Design (LEED) rating systems except on a case-by-case basis.

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ABCs of acoustical wall and ceiling solutions

July 31, 2015

Whether they are selecting options for drywall, ceiling panels, or lighting fixtures, project teams are expected to be experts, know the ideal solution for every scenario, and to deliver it on time and on budget.

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Tile and Stone Lippage: What is acceptable (and how do you specify it?)

July 30, 2015

Lippage is the vertical displacement between two adjacent tiles of a ceramic, glass, or stone installation. When excessive, this can lead to numerous problems, ranging from chipped edges to snagged furnishings and appliances to safety hazards.

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Adjacent precast box beam bridges

July 29, 2015

For years, adjacent prestressed concrete box-beam bridges have been employed for short and medium spans—two-thirds of all state Department of Transportations (DOTs) use them. Cracks in the longitudinal grouted joints between adjacent beams have often been observed.

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