Steel roof deck guide specifications asc steel deck. Roof deck limit states and design example floor deck limit states and current design methodology composite deck design examples shortcuts for multiple loads form deck and steel fibers. Steel deck institute the steel deck institute was formed to. Wide deck flange roof drain z108 15 diameter deck receptor drain. Roof deck not intended to be watertight in any circumstance. This manual is completely revised, expanded and updated from the 2000 sdi roof deck construction handbook, rdch1.
The service life of metal roofing is typically extremely long however there are instances where changes in roof mounted equipment or roof damage may result in the need for roof repairs. Concrete roof decks include decks that are castinplace or precast, and structural or nonstructural in nature. The deck is a structural panel that spans over roof joist or purlins to provide a flat surface on which to apply the weatherproof roofing. Material and design steel roof deck shall be united steel deck b, f, n, j, h or ls. This manual has evolved from the first edition of the steel deck diaphragm design. Roofdek manual structural roof decking and trays construction. Evolution of company asc steel deck has provided structural steel roof and floor deck throughout the western united states since the 1970s. Roof deck certification program the steel deck institute offers deck manufacturers both members and nonmembers certification of product design.
Asc steel deck conducts extensive test and engineering. Specification drainage engineering guide roof drains. Roof deck design standard manual 12 available at roof deck. Performance guide specifications for metal roofing systems. The finished surface of the deck should be smooth, level, and free of moisture or. Steel deck institute the steel deck institute was formed.
Steel deck institute sdi cosp 2014 code of standard practice. Technical manual for the design and construction of roofs. Although this roof deck category includes numerous variations discussed later, many of the precautions involved with roofing over them are similar. Roofing specifications for steel deck installations often require a fire barrier as the component applied above the metal to help control and limit the amount of fuel contributed to a fire beneath the roof. Keep up on our always evolving product features and technology. Vulcraft, a leader in the steel joist and joist girder industry offers a complete range of steel decking at the five strategically located deck manufacturing facilities. Deck selection deck selection per vulcraft steel roof and floor deck manual roof deck selection fire rating. Missouri university of science and technology scholars mine. This support is usually a beam which is secured under the rafters at a point half way between the ridge and the wallplate. Rogers is an associate professor of structural engineering at. Steel roof deck panels guide specification 05 31 23 3 a.
With the majority of uplift testing being conducted over steel decks, it is important to understand how they are rated and which design properties are important. Compared to other types of steel roof deck, type a has the lowest strength to weight ratio. Flexible construction lends itself to the following roof system design considerations. Modify modify calculation method and unit of measurement. Download cdn engineering manual pdf download usa engineering manual 60ksi pdf. Access our monthly webinar series for free through the webinars on demand series below. We suggest you read the entire manual before starting assembly. A vapor barrier is required in all composite cfr applications to avoid condensation. The result is that the roof deck is also being asked to do more.
Digital pdf steel deck on coldformed steel framing design manual no. Diaphragm design information for vulcraft roof and floor decks is based on the steel deck institute diaphragm design manual, third edition ddm03 in accordance with the 2015 ibc. When roof deck diaphragms are used to transmit lateral loads from seismic events to vertical bracing elements, more robust diaphragm designs may be be required. For the opportunity to receive professional development hours, click here to purchase the 10 question multiplechoice online quiz that coincides with the webinar. It was developed to provide a structurally efficient product for use in roof and floor systems. Selfdrilling fasteners without a washer are utilized. The first edition of the sdi steel deck on coldformed steel design manual points out those differences and provides the design guidance that is necessary to enable steel deck to be properly used in this application, including 7 design examples. Steel deck institute design manuals for floor and roof deck. Roof decks associated with flexible construction are most commonly steel deck, plywood and oriented strandboard, and cementitous wood fiber panels. If the roof curb will be mounted on a new building, it can be assembled at any convenient location and installed as soon as the roof support members are in place. Where allowable shear values exceed 350 plf, foundation sill plates and all framing members receiving 5. Tables found in section 5 of the floor deck design manual that are not included.
Paper hacked selffurring expanded metal lath with icbo approval. Our structural steel products have been installed on high profile projects such as the golden 1 center, levis stadium, salesforce tower, and apples new headquarters, just to name a few. It is used to support concrete or insulating membrane of a roof. Roof deck steel roof deck is the predominant structural component used in virtually all flat roofs. Steel deck institute sdi cosp 2014 code of standard. The tables in appendix a are for composite deck and composite deck slabs with the yield strength of the deck equal to 33 ksi. Download pdf metal roof design for cold climates published 102019.
Asc steel deck business unit is a leading manufacturer of structural steel roof and floor deck. He received his bachelors and masters degrees from the. Miscellaneous steel for stairs, handrails, or slab design is not offered by nucor. Refer to the raincarrying table in this booklet for the maximum allowable panel length per slope that will provide adequate drainage. Design of steel deck for concentrated and nonuniform loading. Design the diaphragm for wind loading using allowable stress design method.
As a genera l rule, the curb should be placed directly on the roof support members. The entity that purchases the steel deck from the seller. Steel decking is used in many applications, but is particularly well suited to roofing and flooring. Steel deck institute diaphragm design manual second. Steel deck assemblies are divided into two categories. Tata steel offers the most comprehensive range of structural roof decking all under one uk manufacturers roof. Steel roof deck designation structural engineering general. Some sdi members manufacture deck in this yield strength. Steel roof deck shall be united steel deck b, f, n, j. This is the english edition of the technical manual for the design and construction of roofs of stainless steel sheet published by japan stainless steel association in 1985 to promote the use of stainless steel sheet roofing in japan, with a commentary on welding processes in use in japan. Design of structural decking system for building ii dept.
Cutting openings through the deck less than 25 square feet in area, and all skew cutting, shall be performed in the field. For use when metal deck is used as a leave in place form. Intuition tells me that something may be warranted here, but im not sure. The diaphragm should be designed for a diaphragm shear of 1200 plf. Before roofing application is started, the deck should be free of all dust, dirt, debris and foreign material.
Mezzanines canopies and overhangs are available to enhance the exterior appearance of your building. Grand rib 3 style metal roofing can be separated from. Does anybody out there have any practical guides for determining whether an expansion joint is necessaryrequired for a bar joist and steel deck roof. Read the entire manual carefully to become familia r with the roof curb installation procedures. Cutting openings through the deck less than 25 square feet in area, and all skew cutting, shall be performed in the.
Our asc steel deck business unit is a leading manufacturer of structural steel roof and floor deck. Impact of diaphragm behavior on the seismic design of lowrise steel buildings colin a. Deck types 6 roof deck permanent structural member no concrete topping. The first edition of the sdi roof deck design manual rddm includes design examples and load tables for generic profiles download the first edition of our steel deck on cold formed steel framing design manual sdcfsfdm or visit our order page to purchase a printed and bound copy. Give our friendly sales staff a call if you have any questions. Rogers is an associate professor of structural engineering at mcgill university, montreal canada. It includes information for the design of steel deck diaphragms for roof and floor decks.
Coldformed steel components of the steel deck system other than the steel deck, which may include, but are not limited to. For longer slopes and lower roof pitches, contact fabral for other suitable profiles. Only the roofers tools and equipment should be allowed on the deck during roof application. More than just a roof, a steel roof deck is the basis upon. Purlins, girts and roof deck the substructure to which the metal panels are fastened must be properly spaced and sufficiently thick to provide a roof or wall. When you install any antenna, you want the maximum performance and these. The comprehensive technical library for logix insulated. Roof deck certification program the steel deck institute offers deck manufacturers both.
A full line of deck accessories, such as end closure and pour stop, is also available from vulcraft. Design examples for steel deck diaphragm calculator web app. The sji and its committees have made a concerted effort to present accurate, reliable, and useful information on the design of steel joists and joist girders. The first edition, rddm, of the sdi roof deck design manual continues the efforts of the steel deck institute to provide uniform industry standards for the engineering, design, manufacture and field usage of steel decks.
Metal roof deck to be asc steel deck select appropriate profiles and gauges. Vulcraft manufactures many different types of deck, including roof deck, floor deck, composite floor deck and cellular deck. Sdi manufacturers can furnish fire ratings, load test results, and other perform ance test reports for their own products. Each catalog can be viewed online, downloaded or ordered where you will receive a hard copy in a few days.
Roof deck is fabricated in accordance with steel deck institute sdi specifications and tolerances. Us steel technical report on steel framed parking structures 1971 57 pages, 5. Steel deck is a cold formed corrugated steel sheet supported by steel joists or beams. Roof pitch the metal roofing panels shown in this manual require a minimum slope of 212 per foot to ensure proper drainage. The use of underlayment between the shingles and metal roof panels is a standard practice. Expansion joints in steel roof deck structural engineering. Metal roofing systems performance guide specification january, 2012 this guide specification is intended for use on projects where the structural standing seam roof system sssrs is supplied as an item separate from the buildings structural system. The steel deck institute sdi has developed new design manuals to assist in the use of their consensus floor and roof deck standards. This standard details manual, aka the blue book, is the right tool to have at your fingertips.
Introduction introduction intro 5 technical manual v8. Over this time, asc steel deck has undergone a few ownership changes and operated. Therefore, it is important that the roofing industry fully understand not only the membrane and fastener performance limits, but also acknowledge the limitations of the underlying structural deck. Technical manual for the design and construction of roofs of. Vulcraft provides a number of resources to help you efficiently and successfully specify steel joists and deck.
Profile of coldformed steel in building construction. Part of the civil and environmental engineering commons. Z121 12 diameter roof drain low silhouette dome z111 12 diameter roof drain for metal decks z122 12 diameter deck receptor drain z125 8 diameter roof drain low silhouette dome z150 14 prom deck drain. Canopies and eaverake extensions offer a great aesthetic. Actual steel thickness to be at least 95% of design thickness. Roof structures roofs section1 module 3 sheet 12section double roofs a double roof is a roof whose rafters are of such a length that they require an intermediate support.
He received his bachelors and masters degrees from the university of waterloo in 1992 and 1995, respectively, and completed his ph. Type a steel roof deck is rarely used for new construction projects. The steel deck is astm a653 ss grade 33 deck with f u 45 ksi. Effective use of the new sdi roof deck design manual. The deck is accurately roll formed in varying configurations on the most modern highspeed roll forming equipment available. Steel deck institute sdi ansisdi c 2017 standard for composite steel floor deck slabs ansisdi nc 2017 standard for noncomposite steel floor deck ansisdi qaqc 2017 standard for quality control and quality assurance for installation of steel deck ansisdi rd 2017 standard for steel roof deck. Vulcraft roof decks are designed in accordance with the ansi steel deck institute. Asc steel deck structural steel roof and floor deck. For more information regarding canam steel deck, please refer to the steel deck or contact our experts by phone at 18664668769 or online. Enter your information below and subscribe to our newsletter. Roof deck historically, published diaphragm design tables for roof deck. The availability of 33 ksi deck should be confirmed with specific manufacturers.
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