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Category Archives: MasterFormat

Selecting and Specifying Roof Coatings

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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. The development of sophisticated protective coatings occurred in the latter half of the 17th century, when a German chemist found a way to use the stickiness of coal tar as protection on wood and ropes.

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NuCedar Mills gives you classic charm without the future maintenance

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Imagine getting the look and feel of cedar siding, without all the hassles of sanding and re-painting, water absorption and swelling, or termite infestation. Well, NuCedar Mills PVC Siding can do just that. NuCedar’s skillfully milled cellular polyvinyl chloride (PVC) delivers the natural elegance and classic profile of cedar, with unmatched durability and distinctive color selection guaranteed to last.

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Specifying Acoustical Ceilings in Green Buildings

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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. The new LEED v4 criteria, however, now takes into account the value of good acoustics in enhancing occupant satisfaction and productivity.

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Adjacent Precast Box Beam Bridges

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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. While they are popular due to ease of construction and low profile, cracks in the longitudinal grouted joints between adjacent beams have often been observed. This can lead to leakage through the joint, accelerating corrosion of reinforcement and diminishing load transfer.

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Lightning Protection and the Building Envelope

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Global warming could increase lightning strikes by 50 percent, according to recently published climatological research. The distribution of lightning activity may also change, raising the occurrence of lightning in regions that heretofore had little risk.1 At the same time, the need for lightning protection becomes more urgent as buildings are filled with increasingly sensitive electronic devices.

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