Manual of low slope roof systems pdf

When considering reroofing a flat roof, it may be possible to convert the low slope roofing system to a steeply sloped roof. Low slope roofing inspection, design, leak detection, repair procedures. 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. In some of those buildings, structural roof damage itself was quite minimal yet the. Manual of low slope roof systems fourth edition roofing contractor. 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. The repair manual for lowslope membrane roof systems is an excellent. Roof coverings and best practices roof coverings and best. For a slope below about 312, metal must be fully soldered in places that get snow and ice.

Steep slope or architectural roofing is not addressed in this document. Department of defense wbdg whole building design guide. This chapter describes four types of common roof membranes. Steep slope roof systems 20 materials and installation techniques applicable to your projects involving low slope roof system. Malarkeys acceptance of a roof deck as satisfactory to receive a builtup roof refers to the condition of the. Protecting roofing workers 9 the care and safe use of ladders, scaffolds, fall protection systems, and other equipment they will be using on the job. Steep roof conversions are a viable option for relatively narrow buildings. Builtup, polymer modified bitumen, singleply, spray polyurethane foam based and structural metal panel roof systems fit this category.

Hurricane katrina, loss of mechanical equipment caused the majority of water damage that was observed in several buildings. See nrca roofing and waterproofing manual, the manual of low slope roof systems griffith and fricklas, and roofs baker. Manual of lowslope roof systems fourth edition roofing. Use features like bookmarks, note taking and highlighting while reading manual of lowslope roof systems. Let our experts help design a system that fits your needs. Nrcas premier technical publication gives you the most current and useful technical information in the roofing industry. Membrane roof systems 2015 was released in march and updates and replaces the nrca roofing manual. The application of selfadhered lowslope roof systems is also easier to master than traditional bituminous application methods. This book provides information on low slope systems, including discussion of many fundamental design issues. Standard test method for water penetration of metal roof panel systems by static water pressure head. Ansispri es1, wind design standard for edge systems used with low slope roofing systems, is a standard addressing the design wind loads and wind resistances testing of edge metal systems, except gutters, used to secure the perimeters of low slope membrane roof systems.

The builtup roofing committee of the asphalt roofing manu. This report documents and summarizes the work conducted to determine with reasonable certainty the roof service life that can be expected of a likeinkind, low slope 55% alzn alloycoated steel standing seam roof ssr system when installed today in. Our panelists will include roofing contractors sharing best practices for navigating the covid19 crisis and legal and health and safety experts to answer your questions. Quality you can trust from north americas largest roofing manufacturer. Roofing systems design manual mbma roofing manual to provide specific design guidance. Low slope roofs or flat roofs, as theyre commonly referred to are more complex than steepslope roofs. The roof system is defined as the roof membrane including surfacing and the roof insulation. Technical nrca national roofing contractors association. If questions arise, designers are encouraged to contact the national roofing contractors association nrca members in their geographical area for specific advice. Low slope roofing products are those primarily intended for roofs with slopes of 3. Know the pitch of the roof and follow the appropriate standard. This book makes a good student manual, or training tool for those individuals that are not very familiar with low slope roof systems.

Construction manual aisc, sheet metal and air conditioning contractors. This may improve the appearance of the building while resolving drainage problems as well. This unbiased, authoritative reference guide of industry best practices for the repair of low slope membrane roof systems, including thermoplastic and thermoset roof membranes, polymermodified bitumen and builtup roofing, and mechanically attached metal flashings, is your goto reference guide for repairs and maintenance. Low slope membrane roofs include weatherproof membrane types of roof systems installed on slopes at or less than 3. 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. Understanding lowsloped hydrostatic standingseam metal roofs. A low slope roof is one that has a slope of less than 3in12. It is engineered specifically for extremely low slope roof applications common to industrial and institutional buildings.

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. A fully searchable pdf version of this publication is available for free download at. Wbdg is a gateway to uptodate information on integrated whole building design techniques and technologies. Nrcas repair manual for low slope membrane roof systems, 2nd edition is available this unbiased, authoritative reference guide offers industry best practices for the repair of low slope membrane roof systems, including thermoplastic and thermoset roof membranes, polymermodified bitumen and builtup roofing. Lowslope roofing products are those primarily intended for roofs with slopes of 3. One of the most widely recognized technical publications in the roofing industry, the nrca roofing manual has been updated to include the nrca roofing manual. It was published by mcgrawhill education and has a total of 598 pages in the book. The fourvolume manual gives you comprehensive information about low and steepslope roof system design, materials and installation. Griffin is a member of astm international and the american arbitration association. Job site preparation for roof projects 10% protecting surroundings correcting problems tearing off existing roofing 3.

This website requires certain cookies to work and uses other cookies to help you have the best experience. Nrcas mainstay manual is updated and rearranged for ease. Download it once and read it on your kindle device, pc, phones or tablets. Click download or read online button to get manual of low slope roof systems book now. Employers need to plan ahead to get the job done safely employers need to develop a plan and ensure the proper equipment, material and appropriately trained workers are available. Nrcas next covid19 telephone town hall will be held tuesday, april 14, at 4. The fourvolume manual gives you comprehensive information about low and steep slope roof system design, materials and installation. For decades, this manual has been the most widely respected guide to designing, constructing, and maintaining low slope roofing systems. Tremco burmastic coldapplied builtup roofs and therm hotapplied builtup roof systems are designed for use on low slope structures in north america. He is a consulting engineer specializing in roofing and energy conservation and a former senior editor for mcgrawhills engineering newsrecord. Metal panel and spf roof systems 2012 335 spf roof systems chapter 8construction details wood nailers and blocking. Repair manual for lowslope membrane roof systems on. Crowe, aia the nrca roofing and waterproofing manual, fifth edition, contains reroofing guidelines for steep and low slope roofing.

His books include energy conservation in buildings and the systems approach to school construction. Prior to the midtolate 1970s, almost all lowslope roofs were asphalt or. Roof slope nailer spacing 1 2 every 16 20 2 3 every 8 3 every 4 head lap termination of the cap sheet surfacing is shown in figure 2 and at all nailersinsulation stops. The august 2004 issue of professional roofing featured an article that.

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. For decades, this manual has been the most widely respected guide to designing, constructing, and maintaining lowslope roofing systems. Best practices for low slope roofs, steep roofs and waterproofing. The nrca roofing and waterproofing manual, fifth edition. This manual replaces all previous versions of the cedar shake and shingle bureau design and application manual for new roof construction. In some instances, roof systems designed for low slope applications may be used on roofs with a slope greater than 3. The roof assembly is defined as the roof deck, along with the roof membrane and roof insulation. 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.

This article defines low slope roofing and describes low slope roofing materials, choices, installations, inspection, defects, roofing repairs, and product sources. Nrca repair manual for low slope membrane roof systems, 2nd. Builtup, polymer modified bitumen, singleply, spray polyurethane foambased and structural metal panel roof systems fit this category. The goal of whole building design is to create a successful highperformance building by applying an integrated design and team approach to the project during the planning and programming phases. Constructiongenerated moisture and its effects on roofing systems. Many of the construction details illustrated in this manual depict wood nailers and blocking at roof edges and other points of roof termination. Manual of low slope roof systems download ebook pdf. Another good source of information would be the nrca, they have some nice manuals on low slope roof systems. Manual of lowslope roof systems mcgrawhill education. Manual of lowslope roof systems fourth edition building. Nrca steep slope roofing manual pdf click here manual. Design and installation manual, published by the national slate association in 2010.

Thus, to drain the 50 foot span in figure 1 where the drain is placed at the point of maximum deflec tion. Multiple methods for executing details are provided to reflect different. Repair manual for low slope membrane roof systems, 2nd edition please note. For steep slope roofs roof types, common roofing terms, roof slope and. This document describes best practices for the selection and installation of curbs used specifically on low slope less than 2. Low slope reroofing guidelines july 2005 professional roofing magazine low slope reroofing guidelines by thomas bollnow and joan p. Repair manual for low slope membrane roof systems on. Gaf offers roof guarantees for a fee for all roofing system specifications published in this manual when installed by gaf factorycertified low slope roofing contractors in accordance with the terms and conditions set forth in this manual, and the procedures for obtaining a guarantee are followed. Lowslope roof projects 20% installing flashings, ventilation, and underlayment installing various lowslope roof systems repairing lowslope roof systems 4. Griffin mcgrawhill education for decades, this manual has been the most widely respected guide to.

Understand the requirements of oshas fall protection standards at 29 cfr 1926, subpart m, to protect workers exposed to falls six feet or more above a lower level. Nrca has made available the nrca roofing manual2019 boxed set, which contains the manuals four volumes the manual provides extensive information about design, materials and installation techniques applicable to almost all roof system types. The application of selfadhered low slope roof systems is also easier to master than traditional bituminous application methods. Ansisprifm 4435 es1 2017 test standard for edge systems used with low slope roofing systems. For decades, this manual has been the most widely respected guide to designing and specifying low slope roof systems. Low slope roofs or flat roofs, as theyre commonly referred to are more complex than steep slope roofs. Protecting roofing workers occupational safety and. Ansisprifm 4435 es1 2017 test standard for edge systems. Tremco builtup roofs are formulated from select asphalt blends, polymer modifiers, and engineered reinforcing fabrics to comprise a roofing system designed to provide. The title of this book is manual of low slope roof systems and it was written by c. Low slope roofs are often referred to as flat roofs. The effect of roof membrane color on moisture accumulation in low slope commercial roof systems pdf 1.

Overdrive rakuten overdrive borrow ebooks, audiobooks, and videos from thousands of public libraries worldwide. Metal roofing systems key advantages the tsr system demonstrates all weather performance in areas of extreme winds, rains and heavy snow. It remains unique the only working handbook that treats all topics in roof design, from fundamentals to roof systems and materials options. Manual of lowslope roof systems ebook roofing systems, roof. See elsewhere in this manual, low slope roofing installation instructions low slope membrane installation with slopes 1 or greater. Metal roofs have turned out to be problematic in our area. Repair manual for lowslope membrane roof systems, 2nd edition. It provides descriptive and prescriptive information on how to build slate roofs.

Low slope roofing products, materials, inspections, low. The new manual covers both basic and advanced aspects of the craft and technolo gy. Chapter 8 construction details progressive materials. The text has been expertly handcrafted by the asphalt roofing manufactures association arma and the single ply roofing industry spri along with the national roofing contractors association nrca. Typically, low slope roof assemblies are composed of three interrelated components.

Steep slope roofs are watershedding types of roof coverings installed on slopes greater than 3. The importance of nailers in low slope roofing systems december 16. This is the recognized stan dard for lowslope hydrostatic metal roofs, including lowsloped ssmrs. For the larger residential low slope roofing applications, certainteed has a host of products and systems available including bur builtup roofing systems, app modified bitumen systems, and sbs modified bitumen systems, including many products that feature certainteeds coolstar surfaces that meet energy star requirements, can be used to. Manual of low slope roof systems download ebook pdf, epub. Because of an immediate stayathome mandate issued for illinois regarding covid19, nrca is unable to ship books and products from its bookstore until further notice. The nrca roofing manual 2015 boxed set about low and steep slope roof system design, materials and installation. Above roof deck, rigid insulation with a factorylaminated, nailable substrate can be used under malarkey roofing systems, but the use and installation of this product must be in strict compliance with the manufacturers requirements and recommendations. Nrca offers 2019 roofing manual boxed set april 11, 2019. The nrcas repair manual for low slope membrane roof systems is the perfect guidebook you need to repair all problems associated with low slope membrane roof systems. Low slope roofing installation instructions chapter 2a low slope roofing. Published by the metal building manufacturers association.

Roof systems can also fail if roof mounted equipment is damaged or dislodged by high winds. Metal panel and spf roof systems2012 335 spf roof systems chapter 8construction details wood nailers and blocking. After youve bought this ebook, you can choose to download either the pdf version or the epub. Best practices for low slope roofs, steep roofs and. Low pitched roofs also includes various structural solutions relating to waterproofing in different parts of a building. This site is like a library, use search box in the widget to get ebook that you want. While a low slope metal roof could in principle be properly built in the situations we encounter, that seems to be the exception. Conversely, some steep slope roof materials may be used on roofs with slopes less than 3. Selfadhered roofing offers the timetested protection of modified bitumen roof systems for a fraction of the labor with no fumes, flame, asphalt kettle or occupant disturbance.