DensShield® Tile Backer Installation Instructions

1 2012 Georgia-Pacific Gypsum LLC. All rights reserved. Printed in the 6/12 GP-TM Lit. Item # Outperforms Other Tile SubstratesDensShield Tile Backer has a long history of successful performance, with hundreds of millions of square feet installed. DensShield Tile Backer is a substrate that, when properly installed, resists the effects of water or moisture, making it excellent for protecting both tile installations and stud cavities. DensShield Tile Backer is composed of a water-resistant treated core that is covered front and back with figerglass mats. The coated fiberglass mats are permanently integrated with the core during manufacturing to help prevent delamination problems. On the face side of DensShield Tile Backer is a heat-cured acrylic coating which stops moisture at the surface and retards vapor transmission, protecting the wall cavity and floor substrate from moisture intrusion.

2 Unlike cementitious Backer boards, DensShield Tile Backer does not require an additional moisture barrier. Excellent substrate for floors,walls and countertopsBuilt in moisture barrier stops moisture at the surfaceMold-resistant when tested, as manufactured, per ASTM D 3273 Scores and snaps easily with a standard utility knifeLifetime Limited Warranty when used in residential tile installations and a 20-year limited warranty when used in commercial applications*.12345 DensShield Tile Backer is lighter and easier to install than leading cement and fiber cement board brands (1 29 [ mm] comparison). DensShield Tile Backer provides excellent dimensional stability and strength so it can be installed parallel or perpendicular to the framing in walls and Tile Backer was the first tile Backer listed as a GreeNGUarD microbial resistant product by a leading third-party organization, GreeNGUarD environmental Institute.

3 This listing means DensShield Tile Backer , which features fiberglass mats instead of the paper facings used on the surface of traditional gypsum tile backers, resists mold growth. The microbial resistant test is based on aSTM Standard D 6329-98, a testing standard set by aSTM International, which develops testing guidelines and procedures for building materials, products, systems, and services.* See warranty for complete terms, conditions and our web site at for complete DensShield information or product warranty to use DensShield Tile Backer5 INSTALLATIONINSTRUCTIONS4 Primary UsesDensShield Tile Backer is excellent for tile and non-tile installations in wet and non-wet applications and in areas of high humidity.

4 5 89 ( mm) DensShield Fireguard Tile Backer is also classified for use in appropriate fire-rated assemblies. It is ideal for tile walls, ceilings, countertops and residential and light commercial floor applications in high moisture areas. DensShield Tile Backer panels provide an excellent Backer for sidewalls and ceilings in bathtubs and shower installations, where it provides an even, solid substrate for tile. DensShield Tile Backer may also be finished with paint or wall textures for non-tile areas that require superior fire and moisture resistance. Both 1 49 ( mm) and 1 29 ( mm) DensShield Tile Backer can be used in floor applications. Both of these thicknesses passed the robinson Floor Test, the industry standard floor test for light commercial ratings.

5 The robinson Floor Test (aSTM C 627) is designed to determine how a tile assembly holds up under extreme wear and weight conditions. DensShield Tile Backer achieves the same light commercial rating as cement and fiber cement backers. DensShield Tile Backer is for interior applications NeededDensShield Tile Backer panels come in a variety of sizes for walls and ceilings, use 1 29 ( mm) or 5 89 ( mm) thickness for countertops and floorings, use 1 49 ( mm) or 1 29 ( mm) thickness no additional moisture barrier needed 29 (51 mm) fiberglass mesh tape flexible sealant/caulk latex portland cement mortar (ANSI ) or Type I Mastic (aNSI ).DensShield Tile Backer Installation Instructions 5 Tub/Shower Sidewalls or CeilingsWalls or Ceilings Position DensShield Tile Backer panel next to framing with the coated (grey) face away from studs.

6 Cut panel to required size and make cutouts. Fit ends and edges Tile Backer may be cut by scoring and snapping with a utility knife, working from the grey face side. Board may be installed either parallel or perpendicular to framing for both wall and ceiling applications. Steel or wood framing for walls should be spaced no greater than 169 (406 mm) without blocking, 249 (610 mm) with blocking when using 1 29 ( mm) DensShield Tile Backer , or 249 (610 mm) with 5 89 ( mm) DensShield Fireguard (20 gauge [33 mils] steel studs are required for tile applications).Application Fastener Min. Length SpacingWalls & Galvanized 69 (152 mm) roofing nail 11 29 (38 mm) along framingWalls & Buglehead, rust Ceilings resistant, coarse 69 (152 mm) (wood frame) thread, sharp 11 49 (32 mm) along framing point screw Buglehead, rust Walls & thread, sharp 69 (152 mm) point rust 11 49 (32 mm) along framing(metal frame) resistant drywall screwFloors Galvanized 11 49 (32 mm) 89 (203 mm) roofing nail in both directions Buglehead, rust Floors resistant, coarse 11 49 (32 mm) 89 (203 mm) thread, sharp in both directions point screw 1 49 ( mm) 29 (51 mm)

7 Crown, corrosive on edges/(1 49 [ mm] resistant chisel 7 89 (22 mm) 49 (102 mm) ) point staples in fieldNote: For walls, fasteners should penetrate at least 3 49 (19 mm) into wood framing. Contact fastener manufacturer for proper selection of corrosion Guide ChartINSTALLATIONINSTRUCTIONS Fasteners should be spaced 69 (152 mm) for walls and ceilings. Drive fasteners flush with coated surface. Do not countersink. See Fastener Guide Chart on previous page. DensShield Tile Backer has a built-in moisture barrier. Does not require an additional moisture barrier. 29 (51 mm) fiberglass mesh tape embed in a skim coat of material used to set tiles on all joints and corners that are to receive tile; caulk corners and edges prior to addition of fiberglass mesh tape.

8 Seal penetrations and abutments to dissimilar Pan Install DensShield Tile Backer on walls according to assembly : Shower pan or rubber membrane must be adequately sloped to the open drain or weep hole detail to permit proper water drainage. Leave a 1 89 (3 mm) gap between DensShield Tile Backer and the shower pan. DensShield Tile Backer is not to be used in shower curbs. DensShield Tile Backer panels can be installed in the shower pan if part of an approved Tile BackerDensShield Tile BackerTile Mastic or Thin SetTilesWood or Minimum 20-Gauge (33 mils) Metal FramingFiberglass Mesh TapeFlexible SealantFlexible SealantBathtubDS002 DensShield Tile BackerTilesFlexible SealantSloped Mortar BedSloped rubber MembraneCrushed StoneWeep HolesBathtub or Shower Receptor apply DensShield Tile Backer either horizontally or vertically on walls as shown in a 1 89 (3 mm) gap between DensShield Tile Backer and the tub deck and completely fill the space between tile and tub with a flexible Shower PanLeave a 1 89 (3 mm)

9 Gap between DensShield Tile Backer and the tub deck and completely fill the space between tile and tub with a flexible Tile Backer Installation Instructions 7DS003 TilesTile adhesive (Latex Thinset Mortar or Mastic)Flexible Sealant into 1 89 (3 mm) min. gapBathtubFireproofing when required (by other trades)DensShield Tile BackerWood or Minimum 20-Gauge (33 mils) Metal FramingDS004 DensShield Tile BackerTile Mastic or Thin-SetTilesFlexible Sealant into 1 89 (3 mm) min. gapShower PanWood or Minimum 20-Gauge (33 mils) Metal FramingINSTALLATIONINSTRUCTIONS8 Floors Residential & Light CommercialTilesDensShield Tile BackerFloor Joists 169 (406 mm) Portland Cement Mortar per aNSI Min. 5 89 ( mm) PlywoodDS005 Residential & Light Commercial Floors1 49 ( mm) and 1 29 ( mm) DensShield Tile Backer can be used as a tile substrate in floor tile applications for residential and light commercial use as defined in the Handbook for Ceramic Tile Installation , published by the Tile Council of North DensShield Tile Backer panels, coated grey side up, to subfloor using a latex portland cement mortar liberally applied with a 1 49 (6 mm) square-tooth notched trowel.

10 Embed DensShield Tile Backer into mortar while still pliant (do not exceed open time) Butt DensShield Tile Backer panels tightly together Stagger DensShield Tile Backer joints over subfloor joints Fasten DensShield Tile Backer panels to subfloor (see Fastener Guide Chart on page 5) Avoid nailing into floor joists on new construction to prevent nail pop-ups Space fasteners no greater than 89 (203 mm) in both directions Drive fasteners flush with the surface do not countersink Apply 29 (51 mm) fiberglass mesh tape over joints. embed with latex portland cement mortar. apply flooring -grade tile with latex portland cement mortar. Full-thickness thresholds should be used and butted against the DensShield Tile Backer panels flush with the tile surface.