Nrca defines lowslope roof systems as a category of roofing that. Weatherproofing sturdiness reinforcement surface weatherproofing is especially critical in low slope assemblies because. Roof slope is a very important aspect and it is considered the primary factor in roof design. Builtup, polymer modified bitumen, singleply, spray polyurethane foam based and structural metal panel roof systems fit this category.
Deckseal roofing membranes deliver premium, durable system performance for many challenging low slope applications, such as additions, garages and porches. Roofing systems design manual mbma roofing manual to provide specific design guidance. The repair manual for lowslope membrane roof systems is an excellent. Manual of lowslope roof systems fourth edition roofing. West coast roofer roofing and roof repair 3,359,429 views. Builtup, polymer modified bitumen, singleply, spray polyurethane foambased and structural metal panel roof systems fit this category. Critical aspects of roof system designs are often left unaddressed, resulting in incomplete contract documents. Low slope roofs or flat roofs, as theyre commonly referred to are more complex than steepslope roofs. Home store books manual of lowslope roof systems fourth edition. Nrca steep slope roofing manual pdf click here systems. Roof failure causes in depth and specific methods for avoiding them. Systems incorporating epdm and modified bitumen membranes, with a shorter service life andor 4ply bur low slope roof systems, with high material usage and short service life impose the greatest impacts.
New roof construction r m a n u a l best materials. Residential low slope roofing can generally be divided up into two broad categories. New ways of access for the first time, the nrca roofing manual. Guidelines for designing lowslope membrane roof systems. It is important to note structural metal panel roof systems can be used for steep slope roof assemblies, too. Lorem ipsum dolor nam faucibus, tellus nec varius faucibus, lorem. Structural metal panel roof systems can be used for low slope roofs because of their hydrostatic, or water barrier, characteristics. For architects, roof designers, roof consultants, contractors, spec writers, attorneys, materials manufacturers anyone who needs authoritative, uptodate information on all aspects of roof technology the manual of low slope roof systems dominates the field.
Best practices for low slope roofs, steep roofs and. The low slope roof systems with lightweight thermoplastic membranes and a long service life impose the lowest global warming impacts. In some instances, roof systems designed for lowslope applications may be used on roofs with a slope greater than 3. Guidelines in this article are based on the nrca roofing manual. Low slope roofing system specifications spec manual b. Griffin is a member of astm international and the american arbitration association.
The nrca roofing and waterproofing manual, fifth edition, contains. Material guide and the steepslope roofing manual, both produced by and available from nrca. Roof systems generally fall under two distinct categories low slope and steep slope. Certainteed low slope roof systems fasteners certainteed corporation roofing siding trim decking railing fence gypsum ceilings insulation 20 moores road malvern, pa 19355 professional. For decades, this manual has been the most widely respected guide to designing, constructing, and maintaining low slope roofing systems. A guide to selecting the right low slope roofing materials. Manual of lowslope roof systems 4 edition by c w griffin. He is a consulting engineer specializing in roofing and energy conservation and a former senior editor for mcgrawhills engineering newsrecord.
Best practices for low slope roofs, steep roofs and waterproofing. For residential low slope owens corning has applied its 75 years of building science technology to introduce the deckseal selfadhered sa roofing system for residential low slope. This manual provides recommendations for building owners and their representatives that will enhance the performance of structural metal panel roof assemblies. While generally written from the perspective of new construction, the information presented. Systems used with low slope roofing systems approved january 24, 2017 page 2 1. After youve bought this ebook, you can choose to download either the pdf version or the. Lowslope roofing products are those primarily intended for roofs with slopes of 3. Editors note measuring up legally speaking safety advice technical details. Roof system types roof systems and materials generally are divided into generic classifications. Metal panel roof systems for lowslope applications. Low slope membrane roofs include weatherproof membrane types of roof systems installed on slopes at or less than 3. Low slope roofs sometimes referred to as flatrange from 0 inches per foot up to 4 inches in a foot of run. Manual of lowslope roof systems mcgrawhill education.
Therm builtup roof systems require a minimum slope of. Other residential products vents, siding, roll roofing. For decades, this manual has been the most widely respected guide to designing, constructing, and maintaining lowslope. This course identifies the information roofing contractors generally need from roof system designers to provide complete and building codecompliant lowslope roof systems. Low slope roofing systems have also evolved with the increased use of modified bitumen. Read manual of lowslope roof systems fourth edition by richard fricklas available from rakuten kobo.
For architects, roof designers, roof consultants, contractors, spec writers, attorneys, materials manufacturers anyone who needs authoritative, uptodate information on all aspects of roof technology the manual of lowslope roof systems dominates the field. Description manual for inspection and maintenance of lowslope structural metal panel roof assemblies. This tops anything i have seen in 25 years of roofing duration. The slope of a roof has an effect on the interior volume of a building, the drainage, the style, and the material used. Department of the navy, fall protection guide, us department of the navy. Roofing solutions reference manual for property managers. Products purchased from third party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product. Unload, handle, and store all roofing products and construction materials with care.
Understanding how a building is insulated, ventilated, and how the drainage and flashing systems integrate is key to proper performance of a low slope system. Low slope roofing includes water impermeable, or weatherproof, types of roof membranes installed on slopes less than or equal to 3. Nrca roofing norton notch filter pdf anthology notes on excel 2007 pdf of drama shorter ed pdf and waterproofing manual 5th edition hardcover june, 2006. Membrane roof systems2015 is available on apple, android and windows tablets and for download from nrcas online bookstore, shop the app version and online pdf are the new primary delivery formats for the nrca roofing manual and jointly replace the nrca roofing manual cd, which has been discontinued. Likewise, the editorial contributors to this guide have spent nearly all of their. For decades, this manual has been the most widely respected guide to designing, constructing, and maintaining lowslope roofing systems. His books include energy conservation in buildings and the systems approach to school construction. Tremco builtup roofs are formulated from select asphalt blends, polymer modi. This standard focuses primarily on design for wind resistance. This standard is intended for use by those that design, specify, manufacturer, and test roofing.
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