While generally written from the perspective of new construction, the information. For decades, this manual has been the most widely respected guide to designing, constructing, and maintaining lowslope roofing systems. 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. For decades, this manual has been the most widely respected guide to designing, constructing, and maintaining low slope roofing systems. This course identifies the information roofing contractors generally need from roof system designers to provide complete and building codecompliant low slope roof systems. A roofing contractor can enhance the probability of success by administering assurance methods that can be followed by project managers foremen, superintendents, etc.
Manual of lowslope roof systems mcgrawhill education. They are designed as a weathertight lowslope system for roofing and siding in both new construction and retrofit, and provide a low maintenance, longlasting roof for any type of building. Identification code a access hatch e expansion joint r roof vent v vent pipe. The nrca roofing manual metal panel and spf roof systems, 2012. Sbsmodified bitumen membrane roofing technical manual. Generally speaking, a roof with a low slope is that which has a pitchmeasured as a. 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. Generally speaking, a roof with a low slope is that which has a pitchmeasured as a ratio of height to widthless than 4. It remains unique the only working handbook that treats all topics in roof design, from fundamentals to roof systems and materials options. Steep slope roof systems 20 materials and installation techniques applicable to your projects involving low slope roof system. Where deflection from snow or other live loads is a concern, a greater slope will be needed to prevent any ponding. Low slope roofing products, materials, inspections, low. Many of the construction details illustrated in this manual depict wood nailers and blocking at roof edges and other points of roof termination.
Click download or read online button to get manual of low slope roof systems book now. Finding the right products for your low slope roof. Read manual of low slope roof systems fourth edition by richard fricklas available from rakuten kobo. There is only one category of metal roof systems used in lowslope applications structural metal panel. New ways of access for the first time, the nrca roofing manual. The manual includes information about roof decks, air and vapor retarders, rigid board insulation, roof membranes, fasteners, surfacing. It should have been the next size format, so that the drawings would render better. 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.
The 2019 manual provides best industry practices and technical information about the design, materials and installation techniques applicable to membrane roof systems used in low slope roof system applications. Nrcas comprehensive repair manual, produced in conjunction with asphalt roofing manufactures association arma and single ply roofing industry spri, will help you identify problems and permanently repair lowslope roof membranes. Metal panel roof systems for lowslope applications. Minimum slope for lowslope roof systems with any roofing material, a slope of at least 14 inch per foot is recommended to promote drainage and minimize ponding. For decades, this manual has been the most widely respected guide to designing and specifying low slope roof systems.
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. Dec 28, 2006 the successful construction of a low slope roof system requires adherence to proper application methods. Introduction power ply installation manual the powerply modified bitumen system is designed for use on low slope exterior roof structures in north america. Nrcas mainstay manual is updated and rearranged for ease of use. Structural metal panel roof systems can be used for low slope roofs because of their hydrostatic, or water barrier, characteristics. Flat roofs are those slope is less than 1 in 4 and use waterproof membranes also called low slope pitched roofs have slopes of 1 in 4 or greater and generally use shingles. Nrcas comprehensive repair manual, produced in conjunction with asphalt roofing manufactures association arma and single ply roofing industry spri, will help you identify problems and permanently repair low slope roof membranes. Uw fall protection program manual revised october 2018. Roofing systems design manual mbma roofing manual to provide specific design. Bureau design and application manual for new roof construction.
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. Historical background of contemporary roof systems chapter 10. This course identifies the information roofing contractors generally need from roof system designers to provide complete and building codecompliant lowslope roof systems. Membrane roof systems2015 was released in march and updates and replaces the nrca roofing manual. Tremco builtup roofs are formulated from select asphalt blends, polymer modifiers, and. Read manual of lowslope roof systems fourth edition by richard fricklas available from rakuten kobo. New roof construction cedar shake and shingle bureau. Critical aspects of roof system designs are often left unaddressed, resulting in incomplete contract documents.
Low slope roofing includes water impermeable, or weatherproof, types of roof membranes installed on slopes less than or equal to 3. Jul 17, 2012 a roof that is nearly flat or slightly pitched is called a flat roof or low slope roof no roof should be dead flat because it must have at least a slight slope to drain. Srs systems are versatile, structural and architectural roofing products. 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. Metal panel and spf roof systems2012 335 spf roof systems chapter 8construction details wood nailers and blocking. For decades, this manual has been the most widely respected guide to designing, constructing, and maintaining low slope. Nrcas mainstay manual is updated and rearranged for ease. A low slope roof has a slope less than or equal to 4 in 12 vertical to horizontal. For decades, this manual has been the most widely respected guide to designing, constructing, and maintaining lowslope. Low slope roofs or flat roofs, as theyre commonly referred to are more complex than steepslope roofs. Protecting roofing workers occupational safety and. Employers must provide the right equipment employers must provide fall protection and the right equipment for the. Manual of low slope roof systems download ebook pdf. There are certain criteria that are required for the proper application of.
The 2019 manual provides best industry practices and technical information about the design, materials and installation techniques applicable to membrane roof systems used in lowslope roof system applications. When engaged in roofing work on a low slope roof that has one or more unprotected side or edge 6 feet or more above lower levels, workers must be protected from falling by. Roof failure causes in depth and specific methods for avoiding them. However, using fewer supports with thicker panels e. It is the architect or designers responsibility to specify the system that is best suited for the facility. A lowslope roof is one that has a slope of less than 3in12. This manual provides you with comprehensive information including design, materials and installation techniques applicable to metal panel and spray polyurethane foam spf roof systems used in low and steepslope applications. The best design practice is to avoid the use of fasteners through the vapor barrier, as any breach of the vapor retarder may allow airvapor. The low slope roof systems with lightweight thermoplastic membranes and a long service life impose the lowest global warming impacts. When considering reroofing a flat roof, it may be possible to convert the lowslope roofing system to a steeply sloped roof. Guidelines for designing lowslope membrane roof systems. Unload, handle, and store all roofing products and construction materials with care. In instances where the building owner does not wish to or cannot retainselect or pay for an inspector, the roofing contractor of record may so select on their behalf. Ansisprifm 4435 es1 2017 test standard for edge systems.
This means special care must be taken when selecting low slope roofing material, and during its installation. This site is like a library, use search box in the widget to get ebook that you want. They are designed as a weathertight low slope system for roofing and siding in both new construction and retrofit, and provide a low maintenance, longlasting roof for any type of building. Residential low slope roofing can generally be divided up into two broad categories. There are certain criteria that are required for the proper application of all low slope roof systems. Guardrail systems, safety net systems, personal fall arrest systems. Low slope roofing system specifications spec manual b. Steep roof conversions are a viable option for relatively narrow buildings. Detail sm 5 from the nrca roofing and waterproofing manual, fifth edition. Published by the metal building manufacturers association.
For decades, this manual has been the most widely respected guide to designing and specifying lowslope roof systems. Low slope roofing products are those primarily intended for roofs with slopes of 3. Low slope singleply reinforced membrane is optional standard nonreinforced membrane with 6 flange. After youve bought this ebook, you can choose to download either the pdf version or the epub. The successful construction of a lowslope roof system requires adherence to proper application methods. A lowslope roof has a slope less than or equal to 4 in 12 vertical to horizontal.
Ansisprifm 4435 es1 2017 test standard for edge systems used with low slope roofing systems. When engaged in roofing work on a lowslope roof that has one or more unprotected side or edge 6 feet or more above lower levels, workers must be protected from falling by. Vapor retarder technical manual, low slope roofing. Up to 4 simultaneous devices, per publisher limits. Description repair manual for low slope membrane roof systems. Inspection requirements low slope roofing all inspection requirements are detailed in the arca accepted inspectors manual for commercial and residential roofing projects. Powerply membranes are formulated from select asphalt bituminous blends, various polymer modifiers, fire resistant additives, and highly engineered. Description repair manual for lowslope membrane roof systems. The nrca roofing manual steep slope roof systems, 20. This may improve the appearance of the building while resolving drainage problems as well. The manual of low slope roof systems fourth edition.
This month, the nrca repair manual for lowslope membrane roof systems, second edition will. Also be sure that the panels are properly sidelapped see fig. Manual of lowslope roof systems fourth edition roofing. Scope the uw fall protection program manual applies to all departments on uw campuses, offcampus uw work locations and leased properties where any type of activity, indoors or outdoors, could result in injuries from falls. There are three basic types of conventional roofing systems used in commercial construction. This book provides information on low slope systems, including discussion of many fundamental design issues. Additionally, low slope roofing systems more directly face the sun.
Lowslope roofing products are those primarily intended for roofs with slopes of 3. Builtup, polymer modified bitumen, singleply, spray polyurethane foam based and structural metal panel roof systems fit this category. Nrca steep slope roofing manual pdf click here roofing manual. Show changes in roof elevations in a separate sketch. Lower roof pitch requires a greater amount of panel overlap. Repair manual for lowslope membrane roof systems perfect paperback january 1, 2007 5. Builtup, polymer modified bitumen, singleply, spray polyurethane foambased and structural metal panel roof systems fit this category. In applications where endlapping is necessary, the upper panel on the slope should lap over the panel that is lower on the slope. Other current volumes in the nrca roofing manual include the nrca roofing manual. The purpose of this section is to provide design guidance for designing high performance low and steepslope roof assemblies. It remains unique the only working handbook that treats all topics in roof design, from fundamentals to roof systems. The 2015 manual nrcas mainstay manual is updated and rearranged for ease of use by maciek rupar april 2015 professional roofing 35 the nrca roofing manual. It is important to note structural metal panel roof systems can be used for steep slope roof assemblies, too. Lowslope roofing systems are defined by code as roof systems applied on slopes of 2.
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