... points and over 200 charts and tables. roofing cedar shingles cedar shakes underlayment roof cover weathering moisture moisture pins 200 ROOFING RESEARCH AND STANDARDS DEVELOPMENT: 10TH VOLUME STP 1650, 2023 / available online at www.astm.org / doi: 10.1520/STP165020220109 David...

... across more than 4,000 projects, resulting in more than 6,000 documented and tracked noncompliances in construction projects in more than 30 U.S. states. This large dataset will be mined to generate a collection of representative projects, focusing on new low-slope roof-system installations. Data derived...

... such as elaborately designed green roofs raise the stakes yet further and threaten the integrity of the building envelope when function follows second to aesthetics. A few small decisions in how building envelope systems are implemented can mean the difference between a successful or failing design...

... by the BECxP and responsive actions by the project team. We will identify how the BECx process affected design and construction details such as window-to-wall interfaces, air and water control layer detailing, and roofing, some of which were successful and some of which fell short of expectations. The BECx...

... In recent years, the roofing industry has undergone another major change with the introduction of underlayment products that have significant moisture retention and permeability differences from the traditional ASTM D226, Standard Specification for Asphalt-Saturated Organic Felt Used in Roofing...

... In recent years, the roofing industry has recognized, or some may say reaffirmed, the importance of installing a vapor retarder over concrete roof decks to protect the applied roofing system. If there is no vapor retarder on the concrete roof deck, moisture from concrete can migrate...

... Data has been generated for performing moisture modeling on roof systems for a set of key materials used on commercial low slope roofs in North America. The data were used to generate a sensitivity analysis, comparing the amount of variation in the results based on known and assumed variation...

... For roofing systems with insulation installed entirely above deck, designers typically determine the required insulation thickness from published thermal resistance (R-value in Imperial units and R-value Système International [RSI] in metric) of the roofing insulation. These calculations...

... In the early part of the 1970s, built-up roofing dominated the U.S. membrane roofing industry. It was estimated that 10 % to 15 % of these roofs failed prematurely, but by the early 1980s new membranes were being rapidly adopted. Among them, ethylene-propylene-diene terpolymer (EPDM) rubber...

... This standard development began with a partnership between members of the roofing industry and NSF International to facilitate the thorough communication of information that is verifiable and accurate about the environmental and social impacts associated with the production and use of single ply...

... In low sloped roofing systems, poorly adhered roofing assemblies are unable to resist significant wind loads and are likely to be further damaged or destroyed by wind events well below the design wind pressures for the assembly. The design and installation of rigid insulation boards...

... Asphalt specifications in the U.S., Europe, and elsewhere in the world are increasingly dependent upon basic principles of rheology, in particular dynamic shear rheology (DSR). The roofing industry would be benefited by a revised ASTM specification featuring DSR measurements as opposed...

... Paraphrasing an old adage, anything worth doing, will be hard to accomplish. And so it is with retrofitting an existing building with a “green roof.” This paper presents a case history of funding, designing, and installing a vegetated green roof on the existing Public Service Building in Battle...

... The use of thermoplastic roofing membranes has grown dramatically over the past years. This has occurred for a number of reasons including the proven track record of some products, the move to light colored “cool” materials, and the variety of systems available. A key benefit of thermoplastic...

... This research measured selected physical characteristics of twelve roofing membranes before and after oven heat and ultraviolet exposure. To make these data useful for comparing values, identical test methods and conditions were used for each membrane. We intend to compare these data with before...

... Terne (Pb-Sn) coated stainless steel has been utilized as a roofing material for a number of commercial, institutional and residential structures throughout the United States and elsewhere. As the base metal, stainless steel offers exceptional long-term resistance to atmospheric corrosion. While...

... A method for the estimation of the durability of both steep and low sloped roofing systems is presented. The “thermal load” concept is defined. Each estimate is based on the thermal load at the exposure site, the presence of significant design, workmanship, and materials defects, and the generic...

... Wood fibers were substituted for asbestos fibers as reinforcing in cement-fiber shingle products used as imitation roofing slate when governmental action outlawed the use of asbestos in this application. Our field experience with many installations of one brand of these new products, however...

... blistering digital fluoroscopy finite element racking roofing seal-tab self-sealing strip shingles wind Carl G. CashI and Frank W. Kane FINITE ELEMENT ANALYSIS OF RACKED VS. TRADITIONALLY APPLIED THREE TAB, SEAL TAB, STRIP SHINGLES, AND BLISTER TESTS FOR ASPHALT-GLASS FELT SHINGLES REFERENCE: Cash...

... In general, the roofing industry has performed reasonably well in providing seals and sealants which are adequate for various roof membranes or other roofing systems. However, the seal and sealant conditions created by exposures, and the interfaces of various systems, components, and materials...