The Building Envelope Life Cycle Asset Management (BELCAM) project, lead by the National Research Council Canada (NRCC) and Public Works and Government Service Canada (PWGSC), is a “proof of concept” project aimed at helping asset managers to predict the remaining service life of building envelope components and to maximize the return on their maintenance expenditure. The BELCAM project focuses...

Artificial ecotopes of 121 peridomiciliary environments in four rural localities in the state of Ceará, Brazil, were studied and the type of material of the ecotopes was identified as triatomine infestation. Two thousand two hundred and four Triatoma brasiliensis Neiva, 340 Triatoma pseudomaculata Corrêa and Espínola, 121 Rhodnius nasutus Stall, and 5 Panstrongylus lutzi (Neiva and Pinto) were ...

A stochastic modeling of the performance of roofing components and systems is proposed using a discrete Markov chain that predicts the incremental deterioration of roofing components. The capability to predict the performance of roofing-components and systems throughout their service lives is essential and constitutes the first step towards the development of a comprehensive building envelope l...

Historically, asbestos-containing roof cements and coatings were widely used for patching and repairing leaks. Although fiber releases from these materials when newly applied have been studied, there are virtually no useful data on airborne asbestos fiber concentrations associated with the repair or removal of weathered roof coatings and cements, as most studies involve complete tear-out of old...

The uses of recycled materials in composites provide the potential for large cost savings and a solution to the ever-growing disposal problem. Shingles contain petroleum based binders and fillers, which used as a valuable resource in composite production. Composites offer inherent advantages over traditional materials in regard to corrosion resistance, design flexibility and extended service li...

Asphalt shingles constitute more than 80% of the roofing materials in current residential housing United States. Many post-disaster surveys have reported failure these elements below design level wind event. Research to realistically model aerodynamics asphalt at full-scale is limited, resulting knowledge gaps peak loads and effects permeability. In this study, resistance are studied by using a...

20070928 ......................... Aktiegolaget Volvo ............................. Ingersoll-Rand Company Limited ...... Blaw-Knox Construction Equipment Corporation. 20070932 ......................... Beacon Roofing Supply, Inc .............. North Coast Commercial Roofing Systems, Inc. North Coast Commercial Roofing Systems, Inc. 20070940 ......................... OCM Principal Opportunities...

Bitumen burns while comprising a small percentage of all types of burns are troublesome. They affect persons engaged in gainful employment which the burns then curtail, as well as requiring special attention because the substance adheres to the skin and is therefore difficult to remove. Ninety-two consecutive patients with such burns who were admitted as in-patients over a 10-year period (1985-...

Laboratory test methods for assessing the hail impact performance of roofing materials were introduced in 1990s. They are based on older science, which projectiles match a theoretical kinetic energy and damage is assessed using binary pass/fail rating whether crack can be detected by expert judgment. The existing do not replicate real-world modes, nearly all products have same rating, making it...

The Florida Solar Energy Center (FSEC), with the support of the National Renewable Energy Laboratory (NREL), has investigated the thermal performance of solar absorbers which are an integral yet indistinguishable part of a building’s roof. The first roof-integrated solar absorber (RISA) system was retrofitted into FSEC’S Flexible Roof Facility in Cocoa, Florida in September 1998. This “proof-of...