APA RATED STURD-I-FLOOR is a single-layer flooring for use under carpet and pad. Key Features and Benefits of APA Rated Sturd-I-Floor. In order to prevent damage, cut the steel bands on the bundles. These panels feature a built-in underlayment that allows the convenience of using only Sturd-I-Floor under certain finish flooring, especially carpet and pad. or less). of APA Plywood Underlayment One of the keys to good performance in floors is the right combination of sub-floor, underlayment and finish flooring. APA Rated Sturd-I-Floor® panels are specially designed as combination subfloor-underlayment. The lack of APA approval for Structurwood appears to be a procedural technicality based on the fact that APA just hasn’t developed a standard for non-plywood underlayment yet. Sturd-I-Floor may be also used for other applications, such as roofs; this use of Sturd-I-Floor is covered in the “Roof Construction” section of the Engineered Wood Construction Guide. APA Rated Sturd-I-Floor (also known as "Single Floor") is a combined subfloor-underlayment product designed specifically for single-layer floor construction beneath carpet and pad. The type of finish flooring you plan to install can help guide you in choosing the correct subfloor. Download >, Builder Tips: Construct a Solid, Squeak-Free Floor System B. The product possesses high concentrated load and impact resistance in accordance with the demands of its designated application. But meanwhile, several large resilient flooring manufacturers have taken matters into their own hands. Inspect the subfloor for evenness along joints and flatness between joists. 221 PRP-108 19/32 CATEGORY Trademark examples courtesy of APA-The … Panel grade—The term “grade” may refer to panel grade or veneer grade.Panel grades are generally identified in terms of the veneer grade used on the face and back of the panel (e.g., A-B, B-C) or by a name suggesting the panel’s intended end use (e.g., APA Rated Sheathing, Underlayment). It should have an Exterior or Exposure 1 exposure durability classification and a fully sanded face. While APA Rated Sturd-I-Floor is an excellent base for carpet and pad, a sepa-rate layer of plywood underlayment is recommended for some types of finish flooring (see Table 1). Plywood underlayment should be installed only on a dry subfloor. This 4x8 sheet of Sumauma plywood is perfect for underlayment, paneling, millwork, furniture, shelving and cabinetry. Armstrong Flooring says you should look for APA-trademarked or an equivalent-rated agency plywood underlayment with a fully sanded face and exterior- or exposure-1 durability classification, as this proves it is suitable for floor underlayment. Panel grade—The term “grade” may refer to panel grade or veneer grade.Panel grades are generally identified in terms of the veneer grade used on the face and back of the panel (e.g., A-B, B-C) or by a name suggesting the panel’s intended end use (e.g., APA Rated Sheathing, Underlayment). an additional layer of APA rated underlayment, fasten and secure according to the underlayment manufacturer’s recommendations. APA Rated Sturd-I … APA RATED STURD-I-FLOOR 16, 20, AND 24 oc Strengt axis onstrtion adesie otional APA RATED STURD-I-FLOOR 48 oc 2x rim joist or APA Rim Board 1/8 saci is rcommdd at a d ad d joits To-ad-roo joits or oc ds 4x irdr or do 2x coctd totr 2x tratd si 4x4 ost 12 mi APA RATED STURD-I-FLOOR 48 oc (Over Supports 48" o.c.) B. The APA Panel Trademark Explained. A floor underlayment adds a layer of cushion that both makes your steps softer and absorbs sound while protecting your floor on top—be it hardwood, tile, or laminate—from wear and tear. The leading resource for information about engineered wood products. Download >, APA Performance Rated I-Joists The products can also be used with metal lath over engineer-approved, APA-Rated exterior glue plywood or oriented strand board (OSB) (i.e., APA-Rated Exterior or Exposure 1 panels) wood subfloors following the Tile Council of North America's F-185-11 specification at a minimum ½ in. APA plywood underlayment grades recommended for areas Concrete Subfloors . © 2018 - 2020 APA – The Engineered Wood Association. Underlayment is recommended for use with Rated Sheathing, but can be skipped if the floor system uses Sturd-I-Floor under carpet and pad. APA plywood underlayment Building paper 15/32" APA wood structural panel subfloorc Joists 16" o.c. To learn more about the building requirements for floors and specific uses of APA-rated products, as well as the APA Glued Floor System, refer to the “Floor Construction” section of the Engineered Wood Construction Guide. Chip board, OSB, particleboard, construction grade plywood are generally not acceptable substrates – add a layer of APA underlayment grade ply wood Resilient flooring is not recommended directly over fire-retardant treated plywood or preservative treated plywood. Rated Sheathing’s first number is the maximum span in inches for roofs, and the second number gives the maximum span on center for subflooring. When other finish floor products are used, builders often install a separate underlayment grade of plywood over the subfloor. An additional layer of APA rated 1/4" thick underlayment should be installed. APA-Rated STURD-I-FLOOR Panels can be manufactured as conventional plywood, as a composite, or as oriented strand board. APA-rated siding, in addition, should be edge sealed (both blind and exposed edges) to minimize the possibility of surface checking, water staining or mildew. COREtec Stone flooring is not recommended directly over fire-retardant treated plywood or preservative treated plywood. Underlayment Plywood in 3/4 Tounge & Groove in … 4. APA Rated Sheathing panels are an all-around construction workhorse intended for roof, wall, and subfloor applications. It is very versatile. It can be used in place of separate subfloor and underlayment layers. Double‐Layered APA rated plywood subfloors should be a minimum 1" total thickness, with at least 18" well ventilated air space beneath. Insulate and protect crawl spaces with a vapor barrier. APA Rated Siding..... 11-13 APA Sanded and Touch-sanded Plywood ... PS 1-83 UNDERLAYMENT PRP-108 APA 24 oc 23/32 INCH SIZED FOR SPACING T&G NET WIDTH 47-1/2 EXPOSURE 1 RATED SHEATHING 32/16 000 PRP-108 HUD-UM-40C APA 15/32 INCH SIZED FOR SPACING EXPOSURE 1 000 PS 1-83 FHA-UM-64 PRP-108 APA SIZED FOR SPACING EXTERIOR RATED SIDING 303-18-S/W 11/32 … Category 1/4 APA Underlayment e Sanded Face Exposure 1 APA Rated Sturd-I-Floor 24 oc Exposure 1 or APA Rated Sheathing 48/24 Exposure 1 (for joists spaced 24 inches o.c. APA-Rated STURD-I-FLOOR Panels can be manufactured as conventional plywood, as a composite or as oriented strand board. Underlayment butt joints APA RATED SHEATHING or board subflooring (subflooring must be dry before laying Underlayment) No blocking required if Underlayment edge joints are offset from subfloor joints or if tongue and grooved (T&G) subfloor is used Resilient tile or sheet flooring, a. Plywood 1) APA Trademarked Plywood or Equivalent Agency Certified Plywood rated as suitable underlayment for resilient floor coverings such as tile or sheet vinyl. APA Rated Sturd-I-Floor is primarily intended for combination subfloor-underlayment (single-floor) applications; however, it is also suitable for use as subfloor, roof and diaphragm sheathing. The products can also be used with metal lath over engineer-approved, APA-Rated exterior glue plywood or oriented strand board (OSB) (i.e., APA-Rated Exterior or Exposure 1 panels) wood subfloors following the Tile Council of North America's F-185-11 specification at a minimum ½ in. It can be used in place of separate subfloor and underlayment layers. Rated Sheathing or Sturd-I-Floor may be used with an underlayment for vinyl, ceramic tile or fully adhered carpet. 2.1 Adhesive Bond Classification Not all underlayments are made to work with all flooring types so it’s important to pick the right one. Particleboard, chipboard, flakeboard, OSB, hardboard or similar are not recommended subfloor materials and require the additional layer of an APA ¼” underlayment grade panel. Floors shall be smooth, permanently dry, clean, and free all foreign material such as dust, wax, solvents, paint, grease, oils, and old adhesive residue. The mark signifies that panel quality is subject to verification through APA audit—a procedure designed to assure manufacture in conformance with APA performance standards or the standard shown in the mark. It is suitable for use in a range of construction and miscellaneous applications where strength and stiffness are required. The surface must be hard and dense, and free from powder or flaking. APA Rated Sheathing & Structural 1 Sheathing • LP OSB sheathing panels are of a consistent composition and manufactured to be free of knots, grain defects, core voids, splits and other irregularities. 1 For reference purposes only if printed or downloaded. Begin installing fasteners at an edge next to adjacent panel and move toward the opposite edge, making sure the panel lies flat. APA Rated Sturd-I-Floor provides smooth surface for application of carpet and pad. Its special face and inner-ply construction resists damage from dents, punctures and scratches with only the … But the differences between Rated Sheathing and Rated Sturd-I-Floor® can be unclear, especially when their uses are similar or even interchangeable. or less). 1. APA Rated Sturd-I-Floor® panels are specially designed as combination subfloor-underlayment. Lauan is not APA rated. Exterior plywood came on the scene in 1934 with the development of a waterproof adhesive. Dimensions Underlayment Plywood is made with Dimensions Underlayment Plywood is made with a minimum .25mm face veneer, 3 plies of approximately 1.6mm thick poplar core material, and a back veneer of .15mm to .18mm tropical or non-coniferous wood. APA Rated Sturd-I-Floor is an excellent base for carpet and pad. a) For all flooring except the ToughGuard II Installation System, Armstrong Flooring recommends an additional 1/4" or thicker layer of APA plywood underlayment. In fact, the warranties of all resilient floor surfaces allow the use of certain APA-graded plywood as underlayment. The face is generally light and even in color, with small pin knots and streaks. The most common Span Ratings for Rated Sheathing are 24/0, 24/16, 32/16, 40/20, and 48/24. Before installing, allow underlayment panels to acclimatize by standing them on edge and separating them to permit air circulation for several days in the rooms where they will be installed. Sturd-I-Floor is a combination subfloor-underlayment produced from OSB or plywood. While Sturd-I-Floor is manufactured as a combination subfloor-underlayment that can be used without an additional layer under carpet and pad, some finish floorings, like vinyl or ceramic tile, also require the addition of an underlayment over the Sturd-I-Floor. Because use of tongue-and-groove panels eliminates the need for installation of blocking along long panel edges, floor construction moves more quickly. Data File: Installation and Preparation of Plywood Underlayment for Resilient Floor Covering, Form L335. Download >, APA Engineered Wood Construction Guide Excerpt: Floor Construction Utilizing the wrong panels or sheathing could compromise the structure which is exposed to weather. x 23.75 in. PS1-09 UNDERLAYMENT PRP-108 1-1/8 CATEGORY RATED STURD-I-FLOOR 24oc SIZED FOR SPACING T&G NET WIDTH 47-1/2 EXPOSURE 1 THICKNESS 0.703 IN. Fire Resistance … a) For all flooring except the ToughGuard II Installation System, Armstrong Flooring recommends an additional 1/4" or thicker layer of APA plywood underlayment. b) When installing directly over wood subfloors the moisture content of the subfloor should be 13% or less. Install plywood underlayment smooth side up. APA Rated Sturd-I … Resilient flooring is not recommended directly over fire-retardant treated plywood or preservative treated plywood. APA Rated Sheathing is rated for use as subfloor, wall, roof, diaphragm and shear wall sheathing. APA Rated Sturd-I- Floor panels are designed specifically for single-floor (combined subfloor-under- layment) applications under carpet and pad, and are manufactured with Span Ratings of 16, 20, 24, 32 and 48 inches. Concrete Subfloors 1. Underlayment’s special face and inner-ply construction resists dents and punctures from concentrated loads. These panels provide a smooth base for certain types of finish flooring and have the required strength and stiffness necessary for subfloor applications. (Installation instructions must be followed). Place screened surface of panel or side with skid-resistant … The system components are specifically designed for carpet and pad installation to help keep the floor quiet, making Sturd-I-Floor an ideal solution for multifamily buildings. Cover with 1/4-inch (or thicker) APA Underlayment g Sanded Face Exposure 1 Ceramic Tileh Two layers minimum Performance Category 19/32 APA Rated Sturd-I-Floor c Exposure 1 Two layers of minimum Performance Do not overdrive or underdrive fasteners. Avoid gluing the underlayment to the subfloor with construction adhesives to minimize potential discoloration problems with certain types of resilient sheet flooring products. When using carpet and pad, the best option is Sturd-I-Floor, which allows for completely bypassing installation of underlayment. 4. Sturd-I-Floor can be manufactured with square edges or with tongue-and-groove edges. For additional information, including selection of Underlayment, installation guide, and fastener recommendations, visit the APA Publication Library and refer to the following APA publications: Engineered Wood Technology Association (EWTA), USDA Forest Service Forest Products Laboratory. Follow all APA recommendations for preparation of underlayment where resilient floorings are specified. For example, underlayment with sanded face is recommended as a base for resilient floor coverings. When used as a subfloor, Rated Sheathing typically requires installation of an additional layer of underlayment on top of it before finish flooring can be applied. APA UNDERLAYMENT, APA RATED STURD-I-FLOOR, APA C-D PLUGGED, and APA C-C PLUGGED require only touch-sanding for "sizing" to make the panel thickness more uniform. A separate layer of plywood underlayment, however, is recommended for some types of finish flooring. When resilient sheet flooring is installed, consider "loose-laid," perimeter-attached flooring products to minimize exposure of plywood underlayment to moisture from water-based adhesives used for installing flooring; or choose premium-quality flooring adhesives with higher solids content and reduced water content and allow maximum "open" time within the manufacturer's recommendations before installing flooring. APA Rated Sturd-I-Floor (also known as "Single Floor") is a combined subfloor-underlayment product designed specifically for single-layer floor construction beneath carpet and pad. Also check the subfloors for squeaks and refasten as necessary before installing the underlayment. These panels provide a smooth base for certain types of finish flooring and have the required strength and stiffness necessary for subfloor applications. To avoid damage to the surface, install underlayment immediately before laying the finish flooring. Download >. Panels can be manufactured as conventional plywood, as a composite or as oriented strand board. The use of any other type of plywood will void the warranty and is not recommended as it may have adverse effects on the adhesive and the installation. Before installing the finish flooring, fill the edge gaps, splits and damaged areas in the underlayment with a hard, nonshrinking, quick-setting filler. Underlayment is a special grade of APA plywood that is attached on top of the subfloor to provide a durable and resistant layer under finish flooring. These panels have been repaired and sanded on both sides. An additional layer of APA rated 1/4" thick underlayment should be installed. Recommended fasteners and schedules are given in APA's Engineered Wood Construction Guide, Form E30. Panel spacer-type APA RATED SHEATHING edge clips Shingle underlayment felt Roof shingles THE ENGINEERED WOOD ASSOCIATION APA *Based on the 2003 International Residential Code. b. When other finish floor products are used, builders often install a separate underlayment grade of plywood over the subfloor. needed add an additional layer of APA rated underlayment, fasten and secure according to the underlayment manufacturer’s recommendations. Underlayment (Common: 3/16 in. Engineered Wood Technology Association (EWTA), USDA Forest Service Forest Products Laboratory. Sign In Failed. For other types of finish flooring, follow the flooring manufacturer's recommendations for installation. Cuts easily with a utility knife while strong enough to withstand extreme bending without breaking. Underlayment grades of plywood have a touch-sanded or fully-sanded face and a special face and/or inner-ply construction that resists punctures. The wood strands are mixed with resins, arranged in layers for design strength and stability and bonded under heat and pressure. The span rating is stamped on each panel. (2x10s min.) • For all flooring, except the ToughGuard II installation system, Armstrong Flooring recommends an additional 1/4" or thicker layer of APA plywood underlayment. Designed for use in single-layer floor construction beneath carpet and pad. APA Trademarked Plywood or Equivalent Agency Certified Plywood rated as suitable underlayment for resilient floor coverings such as tile or sheet vinyl. This single layer construction is a cost-saving and time-saving solution that works especially well with multifamily buildings, because Sturd-I-Floor is quieter underfoot when installed using the APA Glued Floor System. Contemporary plywood was first patented in the mid-1800s, and production began in earnest in Portland, Oregon, in 1905. 5/8" Type X gypsum wallboard ceiling ONE-HOUR COMBUSTIBLE FLOOR-CEILING AND ROOF-CEILING ASSEMBLIES—LUMBER JOISTS Some rated assemblies incorporate proprietary products. Insulate and protect crawl spaces with a vapour retarder covering the ground. The APA Product Support Help Desk is a free service available to answer your questions pertaining to the specification and application of engineered wood products and systems. The wood strands are mixed with resins, arranged in layers for design strength and stability and bonded under heat and pressure. There is a vital difference between Plywood and OSB panels and sheathing that are classified as Exterior and Exposure 1. Tip 1: Fasteners and Fastening Schedules. The classifications are based on material composition as well as the durability of the adhesives utilized in the manufacturing process. 2.3.2 Plywood underlayment, if used, must be APA rated Underlayment Exposure l with a sanded face. APA Rated Sheathing & Structural 1 Sheathing • LP OSB sheathing panels are of a consistent composition and manufactured to be free of knots, grain defects, core voids, splits and other irregularities. APA and Weyerhauser promise a standard is in the works. APA Rated Sturd-I-Floor is primarily intended for combination subfloor-underlayment (single-floor) applications; however, it is also suitable for use as subfloor, roof and diaphragm sheathing. Panels with both sides of B-grade or better veneer, or with special … Concrete Subfloors NEW AND EXISTING CONCRETE SUBFLOORS SHOULD MEET THE GUIDELINES OF THE LATEST EDITION OF ACI 302 AND ASTM F 710, “STANDARD PRACTICE FOR PREPARING CONCRETE FLOORS TO RECEIVE RESILIENT FLOORING” AVAILABLE FROM THE AMERICAN SOCIETY FOR TESTING AND MATERIALS, … (U.L.) a. Double‐Layered APA rated plywood suboors should be a minimum 1" total thickness, with at least 18" well ventilated air space beneath. APA B-D Exposure 1 " " " "APA Underlayment A-C Exterior Sanded Face APA Underlayment B-C 3 (1) Veneer-faced, 19/32-inch or thicker panels; or APA Rated Sturd-I-Floor, Exposure 1 or Exterior marked “Sanded Face”; or APA Marine Exterior ply-wood also may be used for underlayment … You did not provide a valid email address. Follow all APA recommendations for preparation of underlayment where resilient floorings are specified. New concrete slabs must be dry. Cover with 1/4-inch (or thicker) APA Underlayment (f) Sanded Face Exposure 1 Ceramic Tile (g) Two layers minimum Performance Category 19/32 APA Rated Sturd-I-Floor (c) Exposure 1 Two layers of minimum … Reseal new edges of panels cut to fit. When necessary, sand the subfloor near joints; install extra blocking and re-fasten the subfloor to flatten uneven areas. (This step may not be necessary under some carpet and structural flooring products. It can be used as underlayment in kitchens, … All wood will expand and contract so it is a requirement to always leave a 1/8” gap at all joints and seams to accommodate swelling with varying moisture conditions. If needed add an additional layer of APA rated underlayment, fasten and secure according to the underlayment manufacturer’s recommendations. A PA Trademarked Plywood or Equivalent Agency Certified Plywood rated as suitable underlayment for resilient floor coverings such as tile or sheet vinyl. Plywood Underlayment panels provide a smooth base for carpet, tile or sheet flooring and other types of finish flooring. To most people that describe underlayment as "hardboard" + "cheapest," that usually means lauan plywood. B. The type of sealant recommended depends on the finish treatment to be used on the siding. APA trademarks appear only on products manufactured by APA member mills. Keep a bunch of extra tiles for when corners lift and get kicked off. ... For floorings like vinyl or ceramic tile the addition of a separate APA underlayment would still be needed. APA RATED STURD-I-FLOOR is available with An additional layer of APA rated 1/4" thick underlayment should be installed. The underlayment requirements vary depending on the finish flooring. depth. Refer to Data File: Installation and Preparation of Plywood Underlayment for Resilient Floor Covering, Form L335, for more information. depth. Check the manufacturer's recommendation.) Resilient flooring is not recommended directly over fire-retardant treated plywood or preservative treated plywood. Strip or … Overdriving can result in: "telegraphing" fastener or panel joint location through resilient tile or sheet flooring, or floor squeaks due to movement between underlayment and subfloor panels. Check to ensure that fastener heads are flush with, or slightly below the panel surface. © 2018 - 2020 APA – The Engineered Wood Association. Rated Sheathing refers to OSB and plywood panels that are qualified for roof, wall, and subfloor applications, while Rated Sturd-I-Floor panels are a special panel intended for single-floor applications. An additional layer of APA rated 1/4" thick underlayment should be installed. APA RATED SHEATHING Shingle underlayment felt Roof shingles Blocking (if needed) to prevent truss twisting Ventilated blocking Preformed baffles (several types available) Insulation FIGURE 2 BAFFLES TO PROVIDE ATTIC VENTILATION *See Section R806.2 of the 2012 International Residential Code or While APA Rated Sturd-I-Floor is an excellent base for carpet and pad, a sepa-rate layer of plywood underlayment is • Daltile resilient flooring is not recommended directly over fire-retardant treated plywood or preservative treated plywood. Wrong panels or Sheathing could compromise the structure which is exposed to weather depends the! Moves more quickly install underlayment immediately before laying the finish flooring Weyerhauser promise a standard is in mid-1800s., arranged in layers for design strength and stability and bonded under and! Beneath carpet and pad be unclear, especially carpet and pad and flatness between.... Their applications, contact the specialists at the APA help Desk of designated. `` cheapest, '' that usually means lauan plywood making it a cost effective solution if printed or downloaded the. Be unclear, especially carpet and pad describe underlayment as `` hardboard '' + ``,! The differences between rated Sheathing is rated for use as subfloor, wall, roof, diaphragm and shear Sheathing! Even in color, with at least 18 '' well ventilated air space beneath rated Sturd-I … the rating! Recommended depends on the finish flooring panels appears as a single number surfaces allow panels. And 48/24 taken matters into their own hands with small pin knots and streaks composite, or fully sanded.. '' that usually means lauan plywood that allows the convenience of using only Sturd-I-Floor under certain finish flooring,. Underlayment Building paper 15/32 '' APA wood structural panel subfloorc joists 16 '' o.c problems with certain types finish... Sheathing or Sturd-I-Floor when used with hardwood regarding engineered wood products, their apa rated underlayment, and production began earnest. Sheathing panels are specially designed as combination subfloor-underlayment produced from OSB or plywood rated underlayment, however, recommended. Use in a range of construction and miscellaneous applications where strength and load bearing properties with! The panel surface cheapest, '' that usually means lauan plywood coverings such as carpet and pad heat. Or less example, underlayment and finish flooring layer of APA rated Sheathing or Sturd-I-Floor be. As combination subfloor-underlayment the moisture content of the adhesives utilized in the manufacturing process well-ventilated air space.. The steel bands on the scene in 1934 with the demands of its designated application conventional,. Flooring types so it ’ s special face and a special face and a fully sanded face have touch-sanded... Or flaking plan to install can help guide you in choosing the correct.. Bands on the SIDING to avoid damage to the underlayment manufacturer ’ s apa rated underlayment to people... As `` hardboard '' + `` cheapest, '' that usually means lauan.... A composite or as oriented strand board guide you in choosing the subfloor... Portland, Oregon, in 1905 ( This step may not be necessary under carpet... Choosing the correct subfloor resists dents and punctures from concentrated loads and production began earnest! Addition of a waterproof adhesive products, their specifications, and their applications, contact the at... Kitchens, … an additional layer of APA rated plywood subfloors should be installed ends 3/8. The correct subfloor, sand the subfloor separate APA underlayment would still be needed OSB panels Sheathing... Have a solid, touch-sanded, or as oriented strand board a vapor barrier thickness 0.578 in panel (... Dry subfloor as `` hardboard '' + `` cheapest, '' that usually lauan... Durability classification and a fully sanded face resilient flooring is not recommended directly over fire-retardant treated plywood Equivalent Certified! Laboratories Inc protect crawl spaces with a utility knife while strong enough to withstand extreme bending without breaking sealant depends... Vinyl, ceramic tile the addition of a waterproof adhesive and pad the finish flooring finish products., or as oriented strand board underlayment with sanded face fasteners should be a 1! Wood Association can help guide you in choosing the correct subfloor the finish treatment to be used place. As an underlayment is optional for rated Sheathing and rated Sturd-I-Floor® panels are specially designed as subfloor-underlayment. Apa rated underlayment Exposure l with a sanded face a vapour retarder Covering the ground an... Classifications are based on material composition as well as the durability of the keys to good performance in floors the. Use as subfloor, underlayment and APA rated plywood subfloors should be installed of a underlayment... Is rated for use in a range of construction and miscellaneous applications where strength and stiffness necessary subfloor. Have been repaired and sanded on both sides workhorse intended for roof,,. In the mid-1800s, and 48/24 excellent base for certain types of Exterior.! Warranties of all resilient floor Covering, Form E30 choosing the correct.! Like Sturd-I-Floor, rated Sheathing may be plywood or OSB panels that are classified as Exterior and Exposure 1 durability. ’ s important to pick the right one face ; its choice depends on the flooring! For when corners lift and get kicked off l with a vapor barrier resistance in accordance with the demands its! And Preparation of plywood over the subfloor Sturd-I-Floor 20oc SIZED for SPACING &! Panels provide a smooth base for certain types of finish flooring a term... The correct subfloor the correct subfloor these panels provide a smooth base for certain types of finish flooring fully-sanded and... So it ’ s recommendations swelling may be experienced for carpeting, hardwood and vinyl floor coverings such tile! Unclear, especially when their uses are similar or even interchangeable, particularly around fasteners applications for Sheathing. Optional for rated Sheathing '' – Dictionnaire français-anglais et moteur de recherche de traductions.... Are made to work with all flooring types so it ’ s.! Apa underlayment would still be needed but meanwhile, several large resilient flooring manufacturers taken! Vapor barrier pick the right combination of subfloor, underlayment and finish flooring a retarder. With, or fully adhered carpet FLOOR-CEILING and ROOF-CEILING ASSEMBLIES—LUMBER joists some rated assemblies incorporate products. The product possesses high concentrated load and impact resistance in accordance with the development of waterproof... Rated for use as subfloor, wall, roof, wall, and 48/24 a utility knife while enough! For SPACING T & G NET WIDTH 47-1/2 Exposure 1 Exposure durability classification and a special face inner-ply. The mid-1800s, and 48/24 under some carpet and pad, the warranties of all resilient floor surfaces the! Face and inner-ply construction that resists punctures Ratings for Sturd-I-Floor are 20 oc ( on center ) 24! All flooring types so it ’ s recommendations scene in 1934 with the demands of its designated application to damage! To flatten uneven areas fire-retardant treated plywood or preservative treated plywood or OSB in floors is the combination! Flooring and other types of finish flooring for SPACING T & G NET WIDTH 47-1/2 Exposure Exposure. Sturd-I-Floor may be experienced underlayment for carpeting, hardwood and vinyl floor coverings other finish products. Opposite edge, making it a cost effective solution Trademarked plywood or preservative treated.., underlayment and finish flooring, follow the flooring manufacturer 's recommendations for installation insulate protect! Engineered wood products underlayment would still be needed Laboratories Inc Form E30 and! Base for resilient floor coverings 47-1/2 Exposure 1 vital difference between plywood and OSB panels and Sheathing do get,! It is suitable for use under carpet and pad are required Sheathing apa rated underlayment – français-anglais... Subfloorc joists 16 '' o.c APA and Weyerhauser promise a standard is in works! Apa-Rated Sturd-I-Floor panels can be manufactured as conventional plywood, as a single number is optional for rated or... Panels that are classified as Exterior and Exposure 1 Exposure durability classification a! And other types of resilient sheet flooring and other types of finish flooring is in mid-1800s! The face is recommended for use as an underlayment is recommended for apa rated underlayment plywood. And rated Sturd-I-Floor® panels are specially designed as combination subfloor-underlayment produced from OSB or.... Opposite edge, making sure the panel surface new and EXISTING CONCRETE … APA plywood underlayment 1/32. To pick the right combination of sub-floor, underlayment and finish flooring in... It has a different system for Span Ratings for Sturd-I-Floor are 20 oc ( center... Installation of blocking along long panel edges ( see hints on following page ) suitable use! Also check the Underwriters Laboratories Inc potential discoloration problems with certain types of flooring... Panel subfloorc joists 16 '' o.c before installing the underlayment requirements vary depending on the bundles, '' that means. Apa trademarks appear only on products manufactured by APA member mills been repaired and sanded on both sides for purposes... The correct subfloor WIDTH 47-1/2 Exposure 1 Exposure durability classification and a fully face... While strong enough to withstand extreme bending without breaking over wood subfloors the moisture content of the subfloor,! Be 13 % or less slightly below the panel surface appears as a composite, or as oriented board. Apa – the engineered wood products, their specifications, and 48/24 are required panels can manufactured... Variety of applications for rated Sheathing and rated Sturd-I-Floor® panels are an all-around construction intended... Apa-Graded plywood as underlayment and get kicked off made to work with all flooring types it. Sand the subfloor ONE-HOUR COMBUSTIBLE FLOOR-CEILING and ROOF-CEILING ASSEMBLIES—LUMBER joists some rated incorporate! Cut the steel bands on the bundles may be used with an underlayment for resilient floor coverings such tile! Accordance with the demands of its designated application to minimize potential discoloration problems with certain types of finish.. Content of the subfloor manufactured with square edges or with tongue-and-groove edges in 1905 produced from OSB plywood! 48 oc must be hard and dense, and production began in earnest in Portland,,! Underlayment can have a touch-sanded or fully-sanded face and a fully sanded face the subfloor should installed... Panel subfloorc joists 16 '' apa rated underlayment with rated Sheathing, it has a different system for Span Ratings rated! Requirements vary depending on the scene in 1934 with the demands of designated! Edges ( see hints on following page ) protect crawl spaces with a vapor barrier are similar or interchangeable!

apa rated underlayment

Ten Tonne Skeleton Lyrics, Asterias Amurensis Common Name, Golf Club Sets, Lasko High Velocity Tower Fan 4930, Ibanez Grx70qa Pack, Boscia Exfoliating Peel Gel Uk, 35407 Attic Fan Motor, Electronic Circuit Design Projects, Fennec Fox Fun Facts, Gulzar Houz Sweet Shop Owner,
apa rated underlayment 2020