Installing roofing is no small task, but if you’re up for the challenge, you’ll want to plan carefully. This guide will help you prep for the big job ahead, whether you’re installi...My local lumberyard in central Connecticut provided me with a cost comparison of the materials needed to install 3200 sq. ft. of CDX plywood, OSB, and the Zip System Wall, not including labor. As of this writing, CDX with housewrap came out to 70¢ per sq. ft., OSB with housewrap was 40¢ per sq. ft., and Zip System Wall panels with the ...For SI: 1 inch = 25.4 mm, 1 pound per square foot = 0.0479 kN/m2. a. Applies to panels 24 inches or wider. b. Floor and roof sheathing conforming with this table shall be deemed to meet the design criteria of Section 2304.7. c. Uniform load deflection limitations 1/180 of span under live load plus dead load, 1/240 under live load only.Feb 2, 2566 BE ... OSB vs Plywood - Which Is Better?- Roof Decking Types, Roof Replacement Options and more! We can help! Call 678-365-3138 Are you wondering ...roof sheathing must be at least 1.6 mm thick, 38.1 mm long with a 9.5 mm crown (1⁄16 in. thick, 11⁄2 in. long with a 3⁄8 in. crown), and be driven with the ...What roof sheathing is; The various thickness options available; How to select the right roof sheathing thickness for your home; Signs indicatingthe need for replacement; The associated costs; What is Roof Sheathing? Roof sheathing, also known as roof decking, is the layer of material installed over the roof rafters or trusses. It forms …Provides full open-wall cavities that allow for faster and better insulation. Eliminates the gable end hinge point when Windstorm extends beyond the bottom chord. Windstorm lengths are available from 97 1/8″ up to 145 1/8″ in 7/16 and 15/32 thickness categories. More information is available in the installation section below.Oct 4, 2554 BE ... If they were building top quality, they would be using Advent-Tec T&G roof sheathing, which is about twice the cost of OSB and 25% more than ...roof sheathing. 3. For buildings with conventionally framed roofs (trusses or rafters), limit the length of continuous sections of roof area to 80 feet maximum during construction to allow for accumulated expansion in wet weather conditions. Omit roof sheathing panels in each course of sheathing between sections and install “fill in” panels ...What is Roof Decking? Roof decking is the material that lays between the structural components of a roof (joists and trusses), the insulation, and the waterproofing layers (coatings, roofing materials, etc.). The roof deck is the section of the roof where everything else is placed. Because of this, it needs to be strong enough to hold weight ...My local lumberyard in central Connecticut provided me with a cost comparison of the materials needed to install 3200 sq. ft. of CDX plywood, OSB, and the Zip System Wall, not including labor. As of this writing, CDX with housewrap came out to 70¢ per sq. ft., OSB with housewrap was 40¢ per sq. ft., and Zip System Wall panels with the ...Fasteners shall be long enough to penetrate into the sheathing 3 / 4 inch or through the thickness of the sheathing, whichever is less. Attaching wire for clay and concrete tile shall ... (19.1 mm) into the roof sheathing. Where the roof sheathing is less than 3 / 4 inch (19.1 mm) thick, the nails shall penetrate through the sheathing ...Plywood is really a thing of the past. Anyone who thumbs their nose at OSB has never used Advantec 1/2" OSB. It is a great choice for your roof, ...Exposure 1. Plywood sheathing is ideal for residential and light construction. Every piece meets the highest grading standards for strength and appearance. It adds proven performance and durability to new homes, room additions and renovations. Plywood sheathing delivers outstanding stiffness, strength and versatility.Mar 10, 2023 · If there are any knots in the plank, it can end up causing structural issues in the roof. 4. Sheet Decking. Sheet sheathing (or sheet decking) is made out of flat, rectangular material. It can come in a variety of thicknesses– ⅜”, ½”, ⅝”, and ¾”. roof sheathing. 3. For buildings with conventionally framed roofs (trusses or rafters), limit the length of continuous sections of roof area to 80 feet maximum during construction to allow for accumulated expansion in wet weather conditions. Omit roof sheathing panels in each course of sheathing between sections and install “fill in” panels ... Building Code Performance Categories, Panel Thickness. 7/16 CAT. 0.418″ (10.61 mm). 15/32 CAT. 0.451″ (11.45 mm). 1/2 CAT. 0.483″ (12.26mm). 19/32 CAT. 0.578 ...Seal the roof deck sheathing by covering the entire plywood or OSB sheathing with a self-adhering “peel and stick” membrane or by sealing the sheathing seams with compatible tape. ... Rigid insulation should be limited to a maximum thickness of 10 inches and installed using multiple 2-inch-thick sheets with joints offset horizontally and ...Nov 29, 2562 BE ... Standard roof sheathing consists of 4-by-8 plywood or oriented strand board, or OSB. It is 1/2-inch thick and attaches to the roof rafters or ...Ideal Plywood Specifications for Roofing. The average plywood is available in a 4×8 feet dimension. But what is the best thickness for roof sheathing? If you intend to use this item for making roof sheathing, its thickness should at least be 3/8 th part of one inch. It’s perfect for use with less load while ensuring that the roof is steeper ...Fasteners for asphalt shingles shall be galvanized, stainless steel, aluminum or copper roofing nails, minimum 12-gage [0.105 inch (2.67 mm)] shank with a minimum 3 / 8-inch-diameter (9.5 mm) head, of a length to penetrate through the roofing materials and not less than 3 / 4 inch (19.1 mm) into the roof sheathing. Where the roof sheathing is ...In this video you will learn how to install OSB roof sheathing. Roof plywood is not hard to do. This is the fast and easy way to install OSB roof sheathing. ...Nov 7, 2023 · To apply the multiplier, multiply the total base surface area by the value corresponding to your roof's pitch. For example, with a 6:12 pitch on a 600-square-foot area, the adjusted area is 600 x 1.12 = 672 square feet. 3. Sheathing Panel Dimensions and Applications. Roof sheathing panels are typically sold in dimensions of 4 ft x 8 ft. Fasteners shall be long enough to penetrate into the sheathing 3 / 4 inch or through the thickness of the sheathing, whichever is less. Attaching wire for clay and concrete tile shall ... (19.1 mm) into the roof sheathing. Where the roof sheathing is less than 3 / 4 inch (19.1 mm) thick, the nails shall penetrate through the sheathing ...Thickness gauges are used in the auto mechanics, industry, manufacturing and maintenance fields. There are many types of thickness gauges to choose from. Here’s how to operate a fe...Thickness gauges are used in the auto mechanics, industry, manufacturing and maintenance fields. There are many types of thickness gauges to choose from. Here’s how to operate a fe...When it comes to roofing, choosing the right shingles can make a huge difference in the look and longevity of your home. With so many different types of roofing materials available...Sep 7, 2023 · Gauge is a measurement of the thickness of a metal roofing panel. There are a variety of roofing panels that can be used to cover roofs. Manufacturers in the United States use gauge to express the thickness of metal roof panels. Roof panels vary in thickness from 22 gauge to 29 gauge. The smaller the number, the thicker the panel. The original #1 brand of radiant barrier roof sheathing on the market, LP TechShield Radiant Barrier boasts impressive energy efficiency, blocking up to 97% of radiant heat in roof panels. It can help lower attic temperatures by up to 30° F, and its VaporVents ™ technology allows any trapped moisture to escape the panels during and after ...Exposure 1. Plywood sheathing is ideal for residential and light construction. Every piece meets the highest grading standards for strength and appearance. It adds proven performance and durability to new homes, room additions and renovations. Plywood sheathing delivers outstanding stiffness, strength and versatility.Feb 2, 2566 BE ... OSB vs Plywood - Which Is Better?- Roof Decking Types, Roof Replacement Options and more! We can help! Call 678-365-3138 Are you wondering ...The decking should be at least 19/32 inches thick. A standard roof decking has a thickness of between ⅜ inches to ¾ inches. Roof deck thickness codes do vary based on wind and snow loads. But, there are several factors that you must consider while determining the perfect decking thickness for your roof. Some of the factors include the …Myelin is an insulating layer, or sheath that forms around nerves, including those in the brain and spinal cord. It is made up of protein and fatty substances. Myelin is an insulat...When reroofing, plywood or O.S.B. roof sheathing shall be minimum 9.5mm (3/8”) thick. An upper asphalt shingled roof area shall not drain directly on a lower ...Roof & Wall Sheathing. Our sheathing gives builders an advantage over other panels. The superior engineering of these panels protects against buckling, cupping, warping and sagging. To speed up installation, we've marked each panel with two-way nail lines applied vertically and horizontally at 16″ and 24″ spacing to eliminate the need for ...Plywood. Plywood is a popular choice for roof sheathing due to its strength and flexibility. It …Feb 9, 2562 BE ... Well-known member ... 5/8” has been the standard forever over 24” centers. No clips. Do yourself a favor, and skip the Zip system, stay with ...Jul 5, 2022 · 7/16-inch OSB is the most common choice for modern roof sheathing, but that does not mean you should use it in every build. This is only slightly smaller than ½-inch roof sheathing, but some people say there is a noticeable difference in using it for roof sheathing because of its weight-bearing potential. If you plan to build something that ... Roof decking helps to provide extra support to the outer layers of a roofing system, and it is installed between the structural components of your roof and the layers of insulation and …Polycarbonate roof panels are a popular choice for both residential and commercial projects due to their durability, versatility, and aesthetic appeal. The thickness and strength o...R905.2.1 Sheathing requirements. Asphalt shingles shall be fastened to solidly sheathed decks. R803.1 Lumber sheathing. Allowable spans for lumber used as roof sheathing shall conform to Table R803.1. Spaced lumber used for wood shingle and shake roofing shall conform to the requirements of Sections R905.7 and R905.8.There is no single standard thickness for roof sheathing. The thickness of conventional roof sheathing ranges from 5/8″ to ½” thick. If you’re installing OSB for your rooftop, a thickness of 5/8″ is advised. While plywood should be ½” thick. The recommended roof sheathing thickness is ⅝” thick. See moreDec 25, 2023 · For most residential roof decking applications, the common standard thicknesses used are 5/8″, 3/4″, and 1″. Decking thinner than 1/2″ is generally not thick enough for sufficient strength on most roofs. On the other hand, thicker decking of 1-1/4″ or greater may be utilized in certain circumstances. Replacing a roof is an expensive and important job that can take a significant chunk out of your budget. Knowing the average cost to replace a roof can help you plan for the expens...If you’re needing to replace your roof, there are several more options available to you today than there were in the past. This article will delve into five roofing material option...Feb 28, 2564 BE ... Your roof sheathing is probably 1/8 or 1/4” thick. Replacing the entire membrane is very labor intensive and the rubber isn't cheap. You might ...Installing roofing is no small task, but if you’re up for the challenge, you’ll want to plan carefully. This guide will help you prep for the big job ahead, whether you’re installi...Floor and roof sheathing complying with this table shall be deemed to meet the design criteria of Section 2304.8. ... (610 mm) or 36 inches (914 mm) for 2-inch (51 mm), 3-inch (76 mm) and 4-inch (102 mm) nominal thickness decking, respectively, shall comply with the …1(1) or APA—. The Engineered. Wood Association's. Engineered Wood. Construction Guide,. Form E30. Nominal roof sheathing thick- nesses as thin as 3/8 of an inch ...Most building codes require plywood and 0-2 grade waferboard and strandboard to be a minimum of 5/16 inch (7 mm) thick when supports are spaced 16 inches (400 ...Installing roofing is no small task, but if you’re up for the challenge, you’ll want to plan carefully. This guide will help you prep for the big job ahead, whether you’re installi...Most building codes require plywood and 0-2 grade waferboard and strandboard to be a minimum of 5/16 inch (7 mm) thick when supports are spaced 16 inches (400 ...What is Roof Decking? Roof decking is the material that lays between the structural components of a roof (joists and trusses), the insulation, and the waterproofing layers (coatings, roofing materials, etc.). The roof deck is the section of the roof where everything else is placed. Because of this, it needs to be strong enough to hold weight ... Select the appropriate thickness for wood structural sheathing panels. Minimum: 7/16” thickness. (Exception: 3/8” for gable end walls structural sheathing.) Determine the appropriate fastening schedule for the structural sheathing. Determine the amount and location of braced walls (shear walls) required at each story of the house. (B) Plywood and Oriented Strand Board (OSB) Decks: Individual roofing manufacturers approve either or both plywood and OSB Performance Rated Panels for use as sheathing. These panels should be a minimum thickness of 7⁄16” for OSB and 15⁄32” for plywood. The pane ls must be manufactured with a water-resistant adhesive and shouldWhat is the Standard Roof Sheathing Thickness? The standard roof sheathing thickness for OSB is ⅝ inch. If you’re using plywood, ½-inch thick is sufficient.Where the roof sheathing is less than 3/4 inch (19.1 mm) thick, the fasteners shall penetrate through the sheathing.For exposure to high wind or earthquake forces, lumber sheathing must be laid diagonally or be engineered. The boards are usually 19 mm (¾ in. nominal) thick, ...For exposure to high wind or earthquake forces, lumber sheathing must be laid diagonally or be engineered. The boards are usually 19 mm (¾ in. nominal) thick, ...May 7, 2023 · Learn how to choose the perfect thickness of roof sheathing for your roof type, material, and climate. Find out the standard and recommended thicknesses for plywood, OSB, wood boards, and other roofing materials. Discover the factors influencing sheathing thickness, such as load requirements, weather conditions, local codes and standards, and common problems and solutions. Roof sheathing is available in various thicknesses, typically measured in eighths of an inch (e.g., 7/16″, 1/2″, 5/8″). The most common roof sheathing thickness …Metal Roof Sheeting: All-Round Protection. ... The ‘200’ refers to the thickness of this coating, which varies between 100 and 200 microns. When installing a roof sheet on a residential property you will want to use a sheet thickness of 0.47mm or 0.53mm. The width of a corrugated sheet is fixed at 762mm but they can be bought in pre-cut ...Roof Sheathing Thickness: Installing Plywood Over Big GapsRobert from Revived Exteriors explains the importance of deck replacements. A Good roofing system m...This is one of the most important functions of the roof decking. Every roof shingle nails into the decking. Every. Single. Shingle. And your roof has a lot of shingles. It takes on average 66 shingles to cover 100 square feet of roof. Residential roofs are on average 2,000 square feet. That makes at least 1,000 individual shingles. Take it one ...Oct 11, 2021 · As we’ve previously mentioned, 5/8-inch roof decking is considerably pricier than ½-inch sheathing. Plus, the thicker and heavier boards are more time-consuming to install. As a result, a roofing professional will charge you more in exchange for his time and workmanship. Therefore, if you’re on a tight budget, consider going for a 1/2-inch ... OSB sheathing, or "Oriented Strand Board" is the most common form of roof decking. It is what many refer to as "particle board" though this is not technically accurate. It was used on almost every new home built from the 70's on. ... OSB comes in various sizes and thicknesses, but the most common for steep slope roofing is 4' x 8' sheets that ...Roof deck barriers including the installation fee cost around $500 to $2,000 for a 1,000 square foot attic and it can last for more than 20 years. For more detailed calculations, the radiant barrier costs $1 to $10 per square foot. While professionals charge between $20 to $70 per hou r, depending on the complexity of the task.ZIP System® Roof Sheathing with Built-in Moisture Barrier ... Thickness Adhesive Code Evaluation Report Installation Temperature Range UV Exposure Rating Tensile Strength Elongation 3-3/4" 90' 12 mils Acrylic ESR 2227 20F-120F 180 days 938 psi 400%- 6" 800%.Learn how to choose the perfect thickness of roof sheathing for your roof type, material, and climate. Find out the standard and recommended thicknesses for plywood, OSB, wood boards, and … Select the appropriate thickness for wood structural sheathing panels. Minimum: 7/16” thickness. (Exception: 3/8” for gable end walls structural sheathing.) Determine the appropriate fastening schedule for the structural sheathing. Determine the amount and location of braced walls (shear walls) required at each story of the house. a. Applies to panels 24 inches or wider. b. Uniform load deflection limitations 1 / 180 of span under live load plus dead load, 1 / 240 under live load only.. c. Panel edges shall have approved tongue-and-groove joints or shall be supported with blocking unless 1 / 4-inch minimum thickness underlayment or 1 1 / 2 inches of approved cellular or lightweight concrete is placed over the subfloor ... Osb Roof Sheathing Thickness · Jumbo 7320mm High Performing Insulated Green Material OSB Facing EPS Structural Insulated Panel SIPs Roof Wall Sandwich Panel.Fasteners for asphalt shingles shall be galvanized, stainless steel, aluminum or copper roofing nails, minimum 12-gage [0.105 inch (2.67 mm)] shank with a minimum 3 / 8-inch-diameter (9.5 mm) head, of a length to penetrate through the roofing materials and a minimum of 3 / 4 inch (19.1 mm) into the roof sheathing. Where the roof sheathing is …Roof deck barriers including the installation fee cost around $500 to $2,000 for a 1,000 square foot attic and it can last for more than 20 years. For more detailed calculations, the radiant barrier costs $1 to $10 per square foot. While professionals charge between $20 to $70 per hou r, depending on the complexity of the task.Feb 9, 2562 BE ... Well-known member ... 5/8” has been the standard forever over 24” centers. No clips. Do yourself a favor, and skip the Zip system, stay with ...Feb 2, 2566 BE ... OSB vs Plywood - Which Is Better?- Roof Decking Types, Roof Replacement Options and more! We can help! Call 678-365-3138 Are you wondering ...Sep 7, 2023 · Gauge is a measurement of the thickness of a metal roofing panel. There are a variety of roofing panels that can be used to cover roofs. Manufacturers in the United States use gauge to express the thickness of metal roof panels. Roof panels vary in thickness from 22 gauge to 29 gauge. The smaller the number, the thicker the panel. 1(1) or APA—. The Engineered. Wood Association's. Engineered Wood. Construction Guide,. Form E30. Nominal roof sheathing thick- nesses as thin as 3/8 of an inch ...Go to Section Show. What is a Roof Decking? Roof decking supports tiles or shingles and can be made of wood, steel, or concrete. A roof deck plays a critical role by …Provides up to 10% more allowable shear strength than rated sheathing with the same thickness and nailing pattern. Designed for greater resistance to wind and seismic loads in roof applications. Ideal for regions with heavy wind, rain, snow and ice. AdvanTech sheathing is backed by the best warranty in the business ‐ a limited lifetime ...The ceiling diaphragm must be a minimum of 1/2-in. drywall, 3/8-in.-thick plywood, or plaster installed over wood lath. The roof sheathing must be at least 3/8-in. plywood or OSB or 3/4-in. boards. Gable ends must have structural wall sheathing (minimum of …Replacing a roof is a major home improvement project that can be expensive. Knowing the cost of replacing a roof is important for homeowners who are considering this type of projec...OSB Roof Sheathing 7/16-Inch Thick Approximate Weight: 1.4 lbs: 140 lbs: 6.84 kg: APA – The Engineered Wood Association: Perlite Board Insulation/Cover Board Per Inch of Thickness: 0.94 lbs: 94 lbs: 4.59 kg: Johns Manville: Plywood Roof Sheathing 15/32-Inch Thick Approximate Weight: 1.4 lbs: Tools & Materials 8. Roof Sheathing: Silver Side Down. Radiant-barrier roof sheathing keeps attics cool in hot climates. How-To 9. Remove Roof Sheathing With a Modified Framing Nailer. Overdriving nails is faster and cleaner than pulling them out with a cat's paw. 10. Prep a Wood-Shingle Roof for Reroofing. Mar 23, 2023 · Roof sheathing provides an area where the surface material can be attached, but it also helps keep the trusses and/or rafters properly spaced. Sheathing is installed over multiple trusses/rafters, so it essentially turns them into one cohesive unit instead of individual structural members. Sheathing works with other components of the roof as ... a. Applies to panels 24 inches or wider. b. Uniform load deflection limitations 1 / 180 of span under live load plus dead load, 1 / 240 under live load only.. c. Panel edges shall have tongue-and-groove joints or shall be supported with blocking unless 1 / 4-inch minimum thickness underlayment or 1 1 / 2 inches of cellular or lightweight concrete is placed over … The thickness of OSB used for roof decking depends on the truss or rafter spacing and span, plus the type and weight of the roof finish, pitch, snow load, and other factors. The minimum thickness of OSB is usually 5/8” or 15mm, although 3/8” is acceptable for light loads.
The minimum thickness for roof sheathing that many roofers use is 3/4-inches thick. There is no “standard” minimum, however, this is typically the ideal minimum for most roofers. Many old code requirements allowed 3/8,” but this is very thin, and the more weight placed on this wood paneling, the more likely it is to collapse or sag over time.. Gummo where to watch
Nail or screw the sheathing panels to the framing, starting at one corner and working across the wall. Use 8d or 10d nails or #8 or #9 wood screws spaced 6 to 8 inches apart along the edges and 12 to 16 inches apart in the field. Before fastening, also ensure the panel is level and plumb. Wood structural panel used as roof sheathing shall be installed with joints staggered in accordance with Section R803.2.3.1 for wood roof framing or with Section R804.1 for cold-formed steel roof framing. Wood structural panel roof sheathing shall not cantilever more than 9 inches beyond the gable end wall unless supported by gable overhang ... sheathing or deck boards. ... Sheathing thickness and installation must follow the sheathing manufacturer’s and local building code requirements. ... - Holes or gaps greater than 1/4-inch must be repaired or boards replaced. All roof deck surfaces, regardless of type, should be clean, dry, and free of debris, protrusions, dust and oil prior ...Oct 17, 2023 · The thickness of the sheathing directly impacts the roof's ability to bear weight, resist deflection, and endure the tests of time and weather. In essence, the roof sheathing isn't just a surface; it's the hidden strength that holds your roof together. The Role of Building Codes in Roof Sheathing Thickness What Size Plywood for Roof Sheathing? The spacing of the rafters governs the thickness of plywood used for roof sheathing. Most roofers suggest that 5/8-inch plywood should be standard if the underlying rafters are spaced 24 inches apart or less, but slightly thicker 3/4-inch plywood should be used for rafters spaced further apart. This code applies to all buildings except detached one- and two-family dwellings and townhouses up to three stories. The 2021 IBC® contains many important changes such as: Puzzle rooms (escape rooms) are now defined and regulated as special amusement areas, requiring compliance with Section 411 and special means of egress requirements. What is the Standard Roof Sheathing Thickness? The standard roof sheathing thickness for OSB is ⅝ inch. If you’re using plywood, ½-inch thick is sufficient. The cap nail shank and cap staple legs shall have a length sufficient to penetrate through the roof sheathing or not less than 3 / 4 inch into the roof sheathing. Metal roof shingles: 1507.5: Mineral-surfaced roll roofing: 1507.6: Slate shingles: 1507.7: Wood shingles: 1507.8: Wood shakes: 1507.9 ... roof sheathing. 3) Nails used with asphalt roofing shall have a head diameter of not less than 9.5 mm and a shank thickness of not less than 2.95 mm. 4 ...Provides full open-wall cavities that allow for faster and better insulation. Eliminates the gable end hinge point when Windstorm extends beyond the bottom chord. Windstorm lengths are available from 97 1/8″ up to 145 1/8″ in 7/16 and 15/32 thickness categories. More information is available in the installation section below.Most building codes require plywood and 0-2 grade waferboard and strandboard to be a minimum of 5/16 inch (7 mm) thick when supports are spaced 16 inches (400 ...Roof sheathing is available in various thicknesses, typically measured in eighths of an inch (e.g., 7/16″, 1/2″, 5/8″). The most common roof sheathing thickness …Oct 11, 2021 · As we’ve previously mentioned, 5/8-inch roof decking is considerably pricier than ½-inch sheathing. Plus, the thicker and heavier boards are more time-consuming to install. As a result, a roofing professional will charge you more in exchange for his time and workmanship. Therefore, if you’re on a tight budget, consider going for a 1/2-inch ... BSI-063: Over-roofing—Don't Do Stupid Things; RR-0603: Impact Resistance of Advanced Framed Wall Systems with Insulating Sheathing as the Primary Sheathing; BSD-146: EIFS - Problems and Solutions; GM-0904: IRC FAQ: Cladding Attachment Over Insulating Sheathing; GM-0903: IRC FAQ: Insulating Sheathing Vapor Retarder RequirementsThe minimum thickness of the outside edge of plastic caps shall be 0.035 inch (0.889 mm). The cap nail shank shall be not less than 0.083 inch (2.1082 mm) for ring shank cap nails. The cap nail shank shall have a length sufficient to penetrate through the roof sheathing or not less than 3 / 4 inch (19.05 mm) into the roof sheathing. 5.Nov 23, 2022 · The standard roof sheathing thickness is 1/2 inch for plywood and 5/8 inch for OSB. For trusses spaced 16 inches apart, a minimum roof sheathing thickness of 3/8 inch is recommended, while 24-inch trusses require at least 1/2-inch roof sheathing. Southern Pine plywood is recommended when roof sheathing thickness should be over 1/2 inch. On a low-slope roof, the correct term is “roof decking” or “roof deck”. Due to its common use in residential pitched-roof construction, “roof sheathing” also connotes the use of wood products such as planks, OSB panels, or plywood. “Roof decking”, on the other hand, can be plywood, OSB, wood planks, steel panels, concrete ...Each quote we've received has given us the OSB option or 3/8" plywood. My understanding is that before the recent price surge in lumber, the ....