Roll Roofing Minimum Slope

Slope: The degree of roof incline expressed as the ratio of the rise, in inches, to the run, in feet. Roll roofing is simplest product to install on a small section of low slope roof is 90-pound roll roofing. 1) – a minimum 4 x 4 “L” with a minimum 4” sealed overlap, shall be attached minimum 6” o. It is also costlier. LIBERTY™ SBS Self-Adhering Cap Sheet is a granule-surfaced roofing membrane designed to be used with LIBERTY™ SBS Self-Adhering Base/Ply or LIBERTY™ MA Mechanically-Attached Base Sheet to provide long-lasting protection for the low-slope areas of your property. Mineral-surfaced roll roofing shall be fastened to solidly sheathed roofs. Natural slate looking roofing options. Our roofing panels require a certain degree of pitch to ensure proper water drainage. Square is a roofing term that refers to one roofing unit of 100 square feet. Whatever product you end up using get the manufacturers' datasheets. The 1999 BOCA National Building Code and 1999 Standard Building Code list the minimum slope for metal panel systems as 1⁄ 4-in-12 (1. Cool-Coat Chemistry Colors available in Standard and most Custom Colors. This document describes best practices for the selection and installation of curbs used specifically on low slope (less than 2:12), coated-steel or aluminum roof systems. Find out which is cheaper between metal roofs and shingles, and the cost to install metal over shingles. For the exposed method, the minimum slope is 2 in 12. While each has its advantages and disadvantages, these are two of the more common systems used in residential. low slope requirement and instructions apply to not less than 2 inches per foot. , and Residential Roofing and Hurricanes, developed by Building a Safer Florida, Inc. IKO Roof-Fast Cap is a reinforced, self-adhering membrane (SAM) that has a release film on its reverse. Carlisle’s Sure-Weld roofing systems utilize a material which offers high resiliency and reflectivity, with the added benefits of heat-welded seams. Tapered EPS insulation provides the required positive slope to drain while retaining the structural and economic advantages of a flat roof deck. This roll roofing product is made of asphalt saturated organic felt, coated on both sides with asphalt and surfaced on both sides with fine mineral matter. Fiberglass Mineral Surfaced Roll Roofing is a glass fiber reinforced asphalt coated product with a ceramic granular surface to protect against UV, weathering and physical damage. Therefore the asphalt manufactures base their warranties around the minimum recommended pitch of 4 in 12. Typically, a flat roof is a low-sloping roof with a maximum 10 degrees of pitch or usually having a slope of up to 3 inches per linear foot for adequate drainage. 0134" thick. Low- slope roofs typically have a minimum slope of one-fourth inch vertical to twelve inch horizontal (¼:12 or 2 percent) depending on the roofing material. Can I use EPDM roofing as a pondliner? No, this is roofing grade material and is not aquatic safe. The installation of mineral-surfaced roll roofing shall comply with this section. Seams are the most vulnerable part of roll roofing, and should be carefully checked forseparation and lifting. 2 states: "Deck slope Mineral surfaced roll roofing shall NOT be applied on roof slopes below one unit vertical in 12 units horizontal (8-percent slope)". mum slope for structural metal panel roof systems should be 1⁄ 2-in-12 (2. Adequate research of flashing conditions and the use of proper flashing details is vital to the long-term success of the roof system. Shake Shingles Minimum #1 grade required. This asphalt is for use in roofs that do not exceed a ½ in 12 slope (4%). CAUTION Read and understand all instructions and precautions before applying Titanium® PSU30. than 4:12 if the low-slope-roofing procedures are used. In the low-slope roofing market (roof pitch between 1 and 3 in […]. This means that the minimum roof slope required for all panels is 1 inches of rise per foot. In some cases metal roofing can go over existing roofing. There are a lot of roof covering choices such as standing seam metal roof or corrugated metal roofing that you simply could select from, and not a lot of them provide an excellent value for…. Despite their high-efficiency performance, most of these products are a. Our roofing panels require a certain degree of pitch to ensure proper water drainage. METAL There are a variety of metals used for roofing but not all are acceptable. Fasteners for asphalt shingles shall be galvanized steel, stainless steel, aluminum or copper roo fi ng nails, minimum 12 gage [0. Cold Flat Roofing: This is where the insulation is typically packed between the rafters. The minimum slope for lapped, nonsoldered-seam metal roofs with applied lap sealant shall be one-half unit vertical in 12 units horizontal (4-percent slope). PART 1 – GENERAL 1. 1 This specification covers prefabricated, self-adhesive, polyester fabric reinforced, polymer-modified asphalt surfaced roll roofing products, with granule surfacing, designed for steep slope applications. This is an inexpensive roofing material often installed (over 15# felt underlayment) by homeowners and do-it-yourself-ers. BUR is preferred for low-slope, or “flat,” roofs because it creates a continuous sealed surface. Eurotray® Double Standing Seam roof cladding must always be installed over a plywood (12mm minimum) substrate with a moisture content of less than 18% and made wind tight, with purlin supports underneath at 600mm centres in low to high wind zones and 400mm centres for very high and extra high wind zones. low slope requirement and instructions apply to not less than 2 inches per foot. South Coast Roof Training would like to express our gratitude to ESCO (The European Slate Company) for supplying the Training Centre with a quantity of 400 x 200 Spanish slates for use in our Apprenticeship Framework programmes. 3 Re-Roofing a Built-Up Roof 244. The roofing is applied either parallel to the eaves or parallel to the rakes. Click to add item "EPDM Rubber Roofing Roll 45 mil" to the compare list. To see what our complete range of IKO asphalt shingles roofing options will look like on your house try our new Shingle Roofing Option Viewer Tool. The minimum pitch for Corrugate is: 8° after deflection for sheet lengths of 30m. Improper slope. Roll roofing used to be the go-to material for residential work. Proper flashing design is the responsibility of the roof designer. It is required as an underlayment for most low slope asphalt roofing applicaions and also works well for low slope shed roofs without any additional roofing on top of it. ) diameter head, ASTM F 1667, of a length to penetrate through. Roll roofing is often installed over bare wood sheathing or sheathing that has been painted with a primer. Layers of Roofing: The maximum number of layers of roofing is one (1) with Asphalt Shingles in Moderate or Severe Hail Prone Areas such as Colorado. we decided to use rolled roofing instead of tar & gravel. my pitch is less than 2' to 12' and it's considered a flat roof. Note that slope also influences your choice of materials. 5 Site-assembled composite. Can I use EPDM roofing as a pondliner? No, this is roofing grade material and is not aquatic safe. Standing Seam Roofing. The success or failure of a roofing system depends greatly on the use of the proper grade of asphalt, as ). You could also opt for a PVC flat roofing membrane. Without this slope, ‘ponding’ may occur, reducing the life of your gutter. Most asphalt shingle roofs require a minimum 2-1/2" pitch and V-crimp metal roofs require a 4" pitch or more, for example. 25 1 - 4+ Source: National Roofing Contractors Association, The NRCA Roofing and Waterproofing Manual. When your home has a roof slope of 2:12 or less the only roof system you can install by local building code would be flat roof material. Can I use EPDM roofing as a pondliner? No, this is roofing grade material and is not aquatic safe. Minimum Slope Shingle Roof Low Slope Roofing Shingles 8. In fact, a minimum slope of 4:12 is probably a much safer bet for installing asphalt shingles. The bottom layer shall be 18 inches (457mm) and the top layer a minimum of 36 inches (914 mm) wide. Visit CBSsheetmetal. , 1:12, ½:12, 4:12, etc. This is a requirement for homeowners insurance in Washington state and has been built into the local building codes to prevent the use of inferior roof covering products and to help facilitate updating homes from the old roofing products to the new roofing products. On occasion, codes will permit aggregate-surfaced coal-tar roofs down to 0. This means that the rise of the slope goes up or down 8 inches for every 12 inches. 2 Deck slope. Low-slope roofs traditionally have been constructed with an asphalt built-up roof covering. ) SBS Self-Adhering Base Sheet for Low Slope Roofs-3733000 - The Home Depot. This post is a image/jpeg and the resolution of this file is 1977 x 1483. Otherwise, the safest minimum pitch for rolled roofing is 2 inches of decline per 12 inches of horizontal direction (2:12 pitch). Tenders are invited for reroofing of all existing roofs with new and demolition includes install eave protection membrane from eave edge to minimum 4 ft up-slope beyond interior face of exterior wall, items projecting through or mounted on roof: weather lap and seal watertight with plastic cement, install one ply of smooth surfaced roll roofing. we decided to use rolled roofing instead of tar & gravel. Roofing Ice and Water shield is a critically component to any new roofing system especially in cold weather climates. The valley area should be installed prior to installation of the field membrane. Asphalt-Applied and Cold Application Built-Up Roofing Application Guide 3. i am currently shopping for a new roof. While it's still an inexpensive option for sheds or other outbuildings, the best materials for residential flat and low-slope roofs are now the single-ply membranes. Seams are the most vulnerable part of roll roofing, and should be carefully checked forseparation and lifting. than 4:12 if the low-slope-roofing procedures are used. PART 1 – GENERAL 1. For nonresidential roofing, bare or unpainted GALVALUME sheet is used for low slope, concealed fastener standing seam roofs (SSR) as a replacement for nonmetallic built-up, rubber and ballasted nonmetallic roofs and for steeper slope screw-down roofs with exposed fasteners. That is a roof with a pitch that is a minimum 1/4 inch per ft and commonly used on structures with low sloped roof designs or porches and patios. The important number to remember is 3/12. • Metal Edge Flashing… for covering roof perimeter edges. How to Apply Fibered Aluminum Roof Coating. There are a number of flat roofing systems available, some of which include EPDM (Ethylene Propylene Diene Monomer), and Modbit (Modified Bitumen). Counter flashing shall be corrosion resistant metal with a minimum thickness provided in Table 1503. 1) – a minimum 4 x 4 “L” with a minimum 4” sealed overlap, shall be attached minimum 6” o. Welcome to Sika Sarnafil's Roofing Applicator Handbook. or OSB (oriented strand board) a minimum of 1/8 inch. This roofing material must meet. Proper ventilation is critical. Avoid lateral water movement by choosing a steep pitch. It is a great option for flat or nearly flat roofs since they aren't visible from the ground, and is a project that you can do in a day. Contractors nationwide have come to look to ABC Supply as their supplier of choice for exterior building products. We are an aggressive company that provides results to fulfill our promise of quality service and products. Welding seams on slopes can be done either upslope or down slope. IB Roof is the only flat roofing systems that comes complete with all flashing detail parts manufactured in house, and giving you the quality and peace of mind. Non-Nailable Deck Types: Steel Decks. Slope can be added with tapered insulation to any roof that is “flat” without re-building the structure. (1) the term used for each row of shingles of roofing material that forms the roofing, waterproofing, or flashing system; (2) one layer of a series of materials applied to a surface (ex: a five-course wall flashing is composed of three applications of roof cement with one ply of felt or fabric sandwiched between each layer of roof cement). For instance, a minimum slope of four units of rise per twelve units of run is recommended if you are installing asphalt, wood, or tile shingles and shakes. The important number to remember is 3/12. 375 inch-diameter (9. In Climate Zones 6, 7 and 8, a Class I or II vapor retarder is installed on. Roofing Tips and Ideas Roll roof your floor for a practically indestructible finish! Buy roll roofing without the adhesive strip. OTHER ROOFING MATERIALS Check with the manufacturer for installation requirements, and also if it's. Roll in membrane using a heavy roller to remove any trapped air. Liberty™ low-slope membrane roll roofing systems are applied without torches, open flames, hot asphalt, or messy solvent-based adhesives. Residential low slope roofing can generally be divided up into two broad categories: larger flat roofed applications (low slope) such as residential condominium complexes, row homes, and town houses and smaller applications such as residential porch and garage transitions from the main home where the slope of the roof changes dramatically. Most steep-slope and low-slope roofing materials are designed for use as water shedding systems. The minimum roof slope for metal roofs is dependent upon the roof profile. Position the roll into the desired location, roll out the membrane and cut to length as needed. This is the minimum pitch or slope a roofing deck can be in order to install composition roofing shingles on it. Visit CBSsheetmetal. The 12-year WeatherBond warranty is, to date, the best I've found in the category of residential low-slope roofing products. Use our calculator to find the pitch given rise and run or the angle of the roof in degrees. Click to add item "EPDM Rubber Roofing Roll 45 mil" to the compare list. Cap flashing shall be corrosion-resistant metal of minimum nominal. use on steep slope roofs (2:12 or greater) under asphalt shingles, composite shingles, metal roofing, concrete and clay tile, slate, and wood shakes. Flat Asphalt: A roofing asphalt conforming to the requirements of ASTM Specification D 312, Type II. Runyon and Sons Roofing is a residential and commercial roofing contractor that specializes in all types of shingle roofs, flat roofs, metal roofs and roof repairs. Liberty™ low-slope membrane roll roofing systems are applied without torches, open flames, hot asphalt, or messy solvent-based adhesives. The Official NRCA Roofing and Waterproofing Volume 2 Steep Slope Metal SPF Roof Save used metal roofing to get e-mail alerts and C $ Enter minimum price to C. 019-inch thickness. Fastener Design. Minimum deck requirements shall be in compliance with. Available in all colors and acrylic coated Galvalume. com Low Slope Product Data Guide APPLICATION & SPECIFICATIONS MANUAL. It is also the intersection of two different materials, such as is the case with parapet walls. Permits issued prior to January 1, 2015, for the replacement of an existing roof with asphalt roof shingles or asphalt composition roll roofing. * Minimum slope 3:12 * Must be installed over solid deck * Also available for jobsite formed for long lengths * Available with striations or no striations. The steeper the slope. Membrane roofs must be installed by a D-Roof Covering/Waterproofing licensed contractor. minimum standard slope requirement and instructions apply to not less than 4 inches per foot. The 2/12 number is rise over run or two units of vertical for every 12 units horizontal. 1 mm) thick, the nails shall penetrate through the sheathing. Steep Slope Roofing. Low- slope roofs typically have a minimum slope of one-fourth inch vertical to twelve inch horizontal (¼:12 or 2 percent) depending on the roofing material. Galvanized metal flashing should be minimum 26-gauge. Although, surprisingly, there was only one leak in the old roof. End laps should be 6" minim um. Application. Exception: This requirement does not apply to hip and ridge junctions. It is composed of alternating layers of reinforcing fabric and bitumen (asphalt) and is finished with a top layer of aggregate, such as stone or gravel. only two grades in SBS modified bitumen specifications — Type III and Type IV. All asphalt shingle roofs with a pitch of 4/12 or more have an underlayment of 15-lb. One thing to keep in mind is the cost of roll roofing. the roof slope you have is at the minimum slope acccepted by I think of "roll roofing" as anything that is a building. See Figure 2. Determine the minimum slope of the roof based on the roofing material. com Low Slope Product Data Guide APPLICATION & SPECIFICATIONS MANUAL. 1 Low slope roofs. Most asphalt shingle roofs require a minimum 2-1/2" pitch and V-crimp metal roofs require a 4" pitch or more, for example. aluminium ridge capping,awning roof panels,backyard furniture,black corrugated metal sheets,blue corrugated metal roofing,building sheet metal,c purlin roll. Choosing materials that don't match the slope of the roof also leaves the home susceptible to water penetration. Mineral-surfaced roll roofing shall be fastened to solidly sheathed roofs. GAF Liberty 3 ft. Otherwise, the safest minimum pitch for rolled roofing is 2 inches of decline per 12 inches of horizontal direction (2:12 pitch). For closed valleys (valley covered with shingles), use a valley lining of one ply of smooth-. i was interested in metal roof because of its warranty and its finish look. CertainTeed Flintlastic® SA roofing membrane is a premium, self-adhering SBS modified bitumen roofing material suitable for use in accordance with CertainTeed specifications for most low-slope roof system applications. Cold Applied Roofing System shall be manufactured by Firestone Building Products Company, CertainTeed Commercial Roofing or approved equal as determined by HPD. Call us today for a free no obligation estimate at 253-445-8950 or visit our online estimate request form. These granule surfaced membranes are used as top membranes. This is because the water spends more time on the roof, and can even pool in places that sag. 2 pounds/square. R-Panel requires a minimum pitch of 1/12. miscellaneous remove all low slope roof membrane, all lightning protection terminals and cables, roofing membrane with mapei ultra flex lft. Tough-Glass® 3-tab asphalt roofing shingles provide 60 mph Limited Wind Warranty protection to ensure the integrity of your home against the elements. Underlayment materials required to comply with ASTM. Ultra-Dek® panels are available in 18-inch and 24-inch widths. Position the roll into the desired location, roll out the membrane and cut to length as needed. This month, I will review guidelines and requirements for minimum roof slope applicable to low-slope mem-brane roof assemblies. Water runs down the roof and over the top of shingles. Apply a minimum 19-inch-wide (483 mm) strip ofunderlayment felt parallel with and starting at the eaves, fastened sufficiently to hold in place. It is lightly coated with a mineral release material on the bottom side. Private Collection Only people explictly granted permission can access. Minimum metal roof slope depends on the roof profile, building design, climate and site location. MINIMUM PITCH FOR METAL ROOF. For the exposed method, the minimum slope is 2 in 12. Our contractors are experienced in working with low-slope and flat roofing systems. Fasteners for asphalt shingles shall be galvanized steel, stainless steel, aluminum or copper roo fi ng nails, minimum 12 gage [0. Mineral surfaced roll roofing is NOT allowed for single family, duplexes or townhomes. As regards the material zinc, the double standing seam is seen as a further development of the original hollow seam or the simple standing seam. A correctly build flat roof will drain the rainwater quickly and effectively into the gutters without allowing water to collect in depressions and 'pond' on the surface of the roof leading to the build-up of silt deposits on the roof and stresses in the membrane when the water freezes (a small amount of ponding is inevitable and it should not reduce the. From the proven, redundant, durable protection of SBS-modified bitumen, to the multifunctional problem solving features of highly flexible PMMA/PMA liquid applied systems, to the aesthetic and functional options of single ply PVC, SOPREMA has the time tested solution. Fasten the strips with rows of nails located 1" and 8" from the roof edge and spaced 4" at the center on each row. • Metal Edge Flashing… for covering roof perimeter edges. A STYROFOAM™ Brand XPS roofing insulation with a planed surface for conventional, low-slope roofs with added compressive strength and additional membrane support manufactured for Canadian climates and building practices. Peel & Seal® is an aluminized composite membrane with an aggressive asphalt adhesive system that provides waterproofing protection and lowers internal temperatures. Proper flashing design is the responsibility of the roof designer. We are an aggressive company that provides results to fulfill our promise of quality service and products. Maybe it allow 2 in 12 with the addition of the second layer of felt. There are two basic types of tin roofing material to choose from. Valleys require a minimum 18” wide roll of Jiffy Seal Ice & Water Guard HT or Jiffy Seal BUTYL Ice & Water Guard HT centered down the full length of the valley. CAUTION Read and understand all instructions and precautions before applying Titanium® PSU30. It is composed of alternating layers of reinforcing fabric and bitumen (asphalt) and is finished with a top layer of aggregate, such as stone or gravel. Single-ply roofing is a popular option for commercial buildings and can be used on any slope of roof. Cool-Coat Chemistry Colors available in Standard and most Custom Colors. One of the major ingredients of Recycled Rubber Roofing is crumb rubber from recycled truck and auto tires which makes it a definite green product. Many factors determine which roofing materials you can use, and one make-or-break factor is the slope of the roof, known as roof pitch. Source of this annotation and contents: ASTM International. com Low Slope Product Data Guide APPLICATION & SPECIFICATIONS MANUAL. Built-Up Roof (BUR) Around for more than a century, BURs were the most common flat-roofing system until the advent of single ply. First mentioned in the relevant literature in 1899, it is the preferred choice over other systems for roof pitches under 25°. Mineral surface roll roofing must be installed in accordance with the manufacturer’s installation instructions. Typically, roofs with a lower slope need overlapping underlayment. Limitations: Poor fire resistance for some types, gets very hot in the summer, and transfers a lot of thermal heat from the sub inside the building, requires frequent replacements. * Minimum slope 3:12 * Must be installed over solid deck * Also available for jobsite formed for long lengths * Available with striations or no striations. Liberty™ low-slope membrane roll roofing systems are applied without torches, open flames, hot asphalt, or messy solvent-based adhesives. This should give you a 1-inch overhang on the eaves, including the top edge. METAL There are a variety of metals used for roofing but not all are acceptable. The installation of mineral-surfaced roll roofing shall comply with this section. You have more than enough slope for your roof, however you will likely need some sort of membrane roofing since it is very low slope. You won't be able to tear off a corner of the mod bit, at least not easily. It maintains long-term thermal performance, dimensional stability and consistent moisture-resistance. Easy to install. • SBS Flashing Cement… for laps and T-joints. This is an inexpensive roofing material often installed (over 15# felt underlayment) by homeowners and do-it-yourself-ers. Steep Asphalt: A roofing asphalt conforming to the requirements of ASTM Specification D 312. Apply a minimum 19-inch-wide (483 mm) strip ofunderlayment felt parallel with and starting at the eaves, fastened sufficiently to hold in place. The minimum pitch here is 3° (approx 5. Unlike non-metal systems which require an underlying substrate or deck, low slope metal roofs can be applied directly over bar joists or purlins. EPDM Roofing Installation Info. The maximum rise for any run is 30". For low-slope roof systems, a minimum safety factor of 2. South Coast Roof Training would like to express our gratitude to ESCO (The European Slate Company) for supplying the Training Centre with a quantity of 400 x 200 Spanish slates for use in our Apprenticeship Framework programmes. Membrane roofs must be installed by a D-Roof Covering/Waterproofing licensed contractor. 375 inch-diameter (9. Low- slope roofs typically have a minimum slope of one-fourth inch vertical to twelve inch horizontal (¼:12 or 2 percent) depending on the roofing material. positioned in place and spread the roll across the roof. Concealed Nail Method - Edge Strips: Place 9-inch wide strips of roll roofing along the eaves and rakes, positioning them to overhang the deck 1/4 inch to 1/8 inch. slope) and up to four units vertical in 12 units horizontal (33-percent slope), underlayment shaH be two layers applied in the following manner. Re: Minimum Pitch For Metal Roofing Exposed fastner metal (29 ga. Built-up roofing, also called BUR, is the most common roofing material used on low-slope roofs. be installed with long-run profiled metal roofing in VH or EH wind zones where the roof slope is 10° or less and the soffit width is 100 mm or less from the cladding. Tough-Glass® asphalt shingles have 3M ceramic coated granules within each shingle to provide further protection for your home. A roofing contractor that only specializes in shingle and pitched roofs is not your best option for your residential or commercial flat roof. Unroll roofing membrane sheets and allow them to relax for minimum time period required by manufacturer. Use Tamko 36 in. If drip edge installed over underlayment there shall be minimum 4” roof cement covering or approved alternate material. Thermoset Single-ply Roofing - The minimum slope here is 1/4:12. 1 POLYISOCYANURATE Polyisocyanurate (polyiso) is a rigid foam insulation. Where fasteners are installed over roofing membrane after seams are welded, cover fasteners with minimum 200 mm (8 inch) diameter TPO membrane cap centered over fasteners. As regards the material zinc, the double standing seam is seen as a further development of the original hollow seam or the simple standing seam. At eaves, install SRP-AirOutshield Roof overlapping the self adhered eave protection membrane by 12 inches minimum. It is important to note structural metal panel roof systems can be used for steep slope roof assemblies, too. 0 is usually applied. One of the more popular choices in today's market is the EPDM memberane. Protan BP can be used as roofing on different kinds of substrate, but needs a separate migra tion barrier of the quality 120 g/m 3 on polystyrene substrates. This is a special site-assembled double skin construction which uses profiled rigid insulation to. Contractors please post the roofing permit card on the job before the work starts. Both pitch and slope indicate the incline of a roof, expressed as a proportion of the vertical to the horizontal. The Roofing Alliance was established in 1996 to create an endowment fund to serve as a resource for the roofing industry and its customers. After 30 years of formulating, testing and manufacturing vertical wall products, Stuc-O-Flex International, Inc. At eaves, install SRP-AirOutshield Roof overlapping the self adhered eave protection membrane by 12 inches minimum. PVC flat roof membranes last 20 years plus and are a solid choice. Single Ply Roofing; Built-Up Roofing; Built-Up Roofing Asphalt; Modified Bitumen Roofing; Structured Metal Panels; Roofing Insulation; Roofing Accessories. INSTALLING EPDM ROOFING on Flat Roofs Until the early 1990’s, using a professional roofer was the only way to get a rubberized roof system installed. Domestic roof construction is the framing and roof covering which is found on most detached houses in cold and temperate climates. On - site roll forming No exposed fasteners Minimum slope 3/12 Style Gauge Price 12” Painted 26 16” Painted 261” 12” SMP 24 12” KYNAR 24 12” Sale Material* 26 16” Sale Material* 26 12” or 16” Loc Seam 12” & 16” Loc Seam 12” or 16” coverage OPTIONAL: Beads or Striations. GAF Asphalt Shingles , combined with the proper underlayment, make ideal low slope roof shingles that do an excellent job of preventing water build-up and leaking. 1 This specification covers prefabricated, self-adhesive, polyester fabric reinforced, polymer-modified asphalt surfaced roll roofing products, with granule surfacing, designed for steep slope applications. Cold-weather wrinkling will be avoided as well. However, clay tiles need a minimum pitch of about 35 degrees. Cold Applied Roofing System shall be manufactured by Firestone Building Products Company, CertainTeed Commercial Roofing or approved equal as determined by HPD. A minimum roof pitch of 2 units vertical to 12 units. When applying over the entire roof deck, the roofing system must provide sufficient ventilation, including both ridge and soffit venting. Mineral-surfaced roll roofing shall conform to ASTMD224, D249, D371, or D3909. BUR is preferred for low-slope, or “flat,” roofs because it creates a continuous sealed surface. uk a website run by Accord Steel Cladding Ltd, suppliers of a range of steel roof sheets to the public and trade. This means that the minimum roof slope required for panels is 3 inches of rise per foot. In low-slope roofs, which include 2:12 up to 4:12, felt courses should overlap a minimum of 19 inches. Steep Asphalt: A roofing asphalt conforming to the requirements of ASTM Specification D 312. A minimum roof pitch of 2 units vertical to 12 units. many contractors have told me that my only option is paper or gravel roof. You can tear off a corner of roll roofing. Coverage White Fiberglass Mineral-Surfaced Cap Roll Roofing-24/008006 - The Home Depot. We know that whatever you need for your job big or small, we will be able to supply from an extensive range of stock. Ridge and hip roof flashings. For closed valleys (valley covered with shingles), valley lining of one ply of smooth roll roofing complying with. 2 Renovation and Repair 246. Additionally, some modified bituminous roofs , as well as certain adhered single-ply membranes and SPF , can be used in certain steep slope roof applications. A low pitch roof using metal roofing should only be used on straight runs without hips or valleys. GAF Asphalt Shingles , combined with the proper underlayment, make ideal low slope roof shingles that do an excellent job of preventing water build-up and leaking. horizontal (2-percent slope). Deck slope. Spanloc 200 is an asymmetrical, mechanically seamed standing seam roof system that features an aesthetically pleasing appearance for low slope roof applications, yet provides excellent resistance to wind uplift. Low-Slope Roofing Materials Guide Introduction The 1999 Low-Slope Roofing Materials Guide is a comprehensive report on commercial, industrial, and institutional low-slope roof membranes, insulation boards, and fastener products currently on the market, as well as the warranties offered for most membrane roof systems. Minimum metal roof slope depends on the roof profile, building design, climate and site location. Membrane roofs must be installed by a D-Roof Covering/Waterproofing licensed contractor. Ensure minimum 50 mm overlap at all ends and side laps. 8g x 40mm countersunk stainless steel screws at 150mm centres. use on steep slope roofs (2:12 or greater) under asphalt shingles, composite shingles, metal roofing, concrete and clay tile, slate, and wood shakes. and roofing industry standards and determined to exceed minimum performance standards. Private Collection Only people explictly granted permission can access. Typically, large-footprint, single-story warehouses and pre-engineered metal buildings will utilize low-slope metal roof systems. Each sheet overlaps the one below it by 3", called downlapping, and provides a backup layer of protection from water intrusion. 1 RELATED SECTIONS A. Types of Roofing defines what types of roofing materials can be used and where. Is there another metal roofing product a) suitable for low slope, b) looks stylish, like fake tile, or slate, or such, AND c) has concealed fasteners? I very much like the metal shingles now on the market, but specs say minimum pitch 3:12. Slope (1) Except as provided in Sentences (2) and (3), the slopes on which roof coverings may be applied shall conform to Table 9. Mineral-surfaced roll roofing shall. Adequate research of flashing conditions and the use of proper flashing details is vital to the long-term success of the roof system. Most structural metal panel roof systems are designed to resist the passage of water at laps and other joints, as sealant or anti capillary designs can be used in the seams. The minimum pitch here is 3° (approx. Gravity Is Your Enemy. GAF Liberty 3 ft. For instance, a minimum slope of four units of rise per twelve units of run is recommended if you are installing asphalt, wood, or tile shingles and shakes. Most asphalt shingle roofs require a minimum 2-1/2" pitch and V-crimp metal roofs require a 4" pitch or more, for example. " It is a liquid emulsion used as the underlayment of a new or retrofit, built-up roofing system. There are two basic types of tin roofing material to choose from. Some roll roofing may be allowed on 'flat' roofs, but 1/12 is the normal minimum. Screw down 1x4 on 16" O. Slope (1) Except as provided in Sentences (2) and (3), the slopes on which roof coverings may be applied shall conform to Table 9. The 6 inch. low slope requirement and instructions apply to not less than 2 inches per foot. Roof-Fast Base MA. Available in all colors and acrylic coated Galvalume. Lyon Metal Roofing is an experienced Metal Roofing Supply company. roll roofing. He gives a very positive review of EDCO's ArrowLine Slate roofing being installed on a spectacular home near Austin, TX. Asphalt roll roofing is a material that comes in large rolls. Liquid Applied Coatings – 1/4:12 is the minimum for this material.