Roofing Materials - National Roofing Contractors Association

simulate traditional roof coverings, such as wood shakes, shingles and tile. Apart from metal roofing’s longevity, metal shingles are relatively ...

Synthetic underlayments: testing and observation - National Roofing Contractors Association

In spring 2006 MRCAs Technical and Research Committee decided to undertake the testing and observation of synthetic roof underlayments. ...

Synthetic Fiber Felts for Built Up Roofs - National Roofing Contractors Association

Synthetic Fiber Felts for Built Up Roofs - National Roofing Contractors Association Synthetic Fiber Felts for Built Up Roofs To obtain a copy of a ...

The NRCA Roofing Manual: Steep-slope Roof Systems 2009 - National Roofing Contractors Association

The latest NRCA roofing manual provides you with comprehensive information about the design, materials and installation techniques applicable to asphalt shingle, clay and concrete tile, metal shingle and synthetic component, slate and wood shake and shingle roof systems used in steep-slope applications. ...

Manual of Built Up Roof Systems (second edition) - National Roofing Contractors Association

Updated and expanded, this second edition provides guidance and data on the design and construction of dependable, durable low-sloped roof systems. Among the features: expanded analysis of the most common roof failure problems (blistering, splitting, ridging, alligatoring); expanded discussion of new single-ply synthetic membrane materials; protected membrane roofing concept; loose-laid ballasted roof system; self-drying roof system; reroofing and roof repair. Emphasizing the concept of the roof as a system of compatible, interacting components, the book allots a chapter to each component, discussing design principles, materials and common problems. At the end of each chapter, Alerts focus the readers attention on major pitfalls. Throughout the text, this edition highlights the life-cycle costing approach, warning against shortsighted first-cost economies that can cause premature failure with consequential tripling of owners long-term roofing costs. A life-cycle costing example presents the mortal sin of built-up roof design - specifying a dead level, rainwater-ponding roof - as a nearly hopeless gamble. Incorporating the latest developments and research findings of the last decade, this comprehensive manual will prove invaluable to architects, design and maintenance engineers, specification writers, roofing contractors, lawyers and others who need the latest information on built-up roofing technology. ...

Emerging Technical Issues Posing Liability Risks to Roofing Contractors - National Roofing Contractors Association

NRCAs legal webinar series continues in February with Mark S. Graham, NRCAs vice president of technical services, who will address roofing-related changes in the 2021 International Building Code, recent manufacturer acquisitions, warranties, new ASTM standards for synthetic underlayments and more. ...

Advances in roof membranes In Japan Design Conception and Improving Performance - National Roofing Contractors Association

This paper deals with recent advances in roof membranes in Japan from the viewpoint of the design conception and improving performance. The conventional hot-applied built-up bituminous membrane has been generally improved by the use of bituminous felts made with synthetic fiber base, in addition to an introduction of the spot-bonded system with perforated felts. It is also improved on movement capability and productivity by introducing base sheets made of rubber. In order to eliminate site-melting of bitumen, two types of membranes are developed; one is with bituminous felts with self-adhesive layer, and the other is with site-applied adhesive. The torching system also has been introduced for the same purpose. The watertight performance at lapped joints in the sheet-applied membrane can be improved by laminating two sheets. Several single-ply sheet-applied systems have recently been developed; mechanically attached and a system with stainless steel sheets. Combination of the sheet- and liquid-applied systems improves inherent weak points in each system: the watertightness in lapped joints in the sheet-applied system, and the uniformity of the liquid-applied membranes and their resistance against indentation. The use of a base sheet, which has a grooved pattern on the underside surface for venting, is very effective in improving the capability of liquid-applied membranes and preventing them from blistering. Specially formulated fiber mats also are used for the same purpose as the base sheet with venting groves. ...

Polyisobutylene (PIB) single ply membranes - National Roofing Contractors Association

Polyisobutylene (PIB) single ply membranes - National Roofing Contractors Association Polyisobutylene (PIB) single ply membranes Note: Documents in ...

Technical library detail - National Roofing Contractors Association

publisher directly. Title Present State of Waterproofing of Buildings Using Synthetic Polymeric Roofiong Sheets Author(s) Synthetic Polymeric Roofing ...

Register for NRCA’s February webinars - National Roofing Contractors Association

Register for NRCA’s February webinars - National Roofing Contractors Association Register for NRCA’s February webinars NRCA will offer webinars in ...

Technical library detail - National Roofing Contractors Association

publisher directly. Title Single Ply Synthetic Rubber Roofing Membranes Abstract Desirable performance characteristics common to all roof ...

GAF will acquire FT Synthetics - National Roofing Contractors Association

acquire FT Synthetics, Langley, British Columbia, a manufacturer of synthetic underlayments for the steep-slope roofing industry. “FT Synthetics and GAF ...

NRCA member donates products to help replace roof for breast cancer survivor - National Roofing Contractors Association

WeatherMaster® Ice & Water 200 underlayment and two rolls of Summit® 60 synthetic underlayment. Atlas Roofing Sales Representative Brian Pelletier, whose ...

Technical library detail - National Roofing Contractors Association

is now the most widely specified synthetic rubber roofing polymer. EPDMs outstanding growth and performance history can be attributed to a number of ...

Technical library detail - National Roofing Contractors Association

publisher directly. Title Fatigue Rupture of Fuild Applied Synthetic Rubbers for Roofing Membranes Keyword(s) fatigue rupture; polymer; synthetic ...

Technical library detail - National Roofing Contractors Association

materials and performances in application centered around development of the asphalt waterproofing method and the synthetic polymeric roofing sheet ...

Technical library detail - National Roofing Contractors Association

synthetic single ply roofing membranes Abstract Waterproofing membranes are directly or indirectly susceptible to solar radiation and weathering. The ...

Technical library detail - National Roofing Contractors Association

concrete and clay tile, synthetic materials and metal roofing. Note: Documents in this section are provided as Adobe Acrobat PDF files. In order to print ...

Technical library detail - National Roofing Contractors Association

percent. The market share for membrane systems for flat roofs is: built-up system using roofing felt of synthetic fiber base, 55 percent to 60 ...

Technical library detail - National Roofing Contractors Association

Technical library detail - National Roofing Contractors Association Title Synthetic roof covering systems Keyword(s) steep slope covering; synthetic ...