Tile Backer Board

GoBoard® LT is the latest ultra-light, waterproof and durable tile backer board from Johns Manville. It’s engineered for durability, yet is up to 85% lighter than cement boards. GoBoard LT is easier to handle and can be cut right where it’s installed with a basic utility knife without crumbling or disintegrating. And, best of all, it has waterproofing already built‐in, reducing installation time and eliminating extra steps since only board joints and fastener locations need to be sealed.

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GoBoard® LT is the durable, ultra-lightweight, waterproof tile backer board from Johns Manville.

GoBoard® LT is the durable, ultra-lightweight, waterproof tile backer board from Johns Manville.

FAST INSTALLATON: Complete shower tile projects in half the time or less. Install GoBoard LT with GoBoard Sealant, take a break and tile the same day. Grout the next day and the project is done*.

ULTRA-LIGHTWEIGHT: Engineered to be dependable even though it’s much lighter weight than cement and other heavy boards. GoBoard LT can be installed in residential and light commercial tile applications.

EASY TO CUT: GoBoard LT can be quickly cut right where it’s installed with a basic utility knife without crumbling or disintegrating. It’s also much easier to handle than cement and other heavy boards.

WATERPROOF BUILT-IN: GoBoard LT saves time and money because you seal only the board joints and fastener locations for a waterproof tile assembly**.

GoBoard LT is available in the following thicknesses:

- ¼” for floors and countertops (3’x5’ and 4’x8’ sheets)
- ½" for walls, showers, and ceilings (3’x5’ and 4’x8’ sheets)

* A typical shower project, waterproof installation, following manufacturer's installation.
** Board joints and fastener locations require a waterproof sealant per GoBoard LT installation instructions.

GoBoard LT Image 490 Web
Property Method GoBoard LT (1/4'') GoBoard LT (1/2'')
Dimensions (feet) ASTM C473 3'x5, 4'x8' 3'x5, 4'x8'
Thickness (inches) ASTM C473 0.25 0.50
Board Weight (lbs/ft²)    0.35 0.40
R-Value (°F · ft² · h/BTU)  ASTM C518 1.2 2.3
Compressive Strength (avg. psi)  ASTM D2394 250 100
Moisture Movement (%)  ASTM D1037 <0.07 <0.07
Surface Burning Characteristics* ASTM E84 Pass Pass
Waterproof  ASTM D4068 Pass Pass
WVT Permeance (perms)  ASTM E96 <1 <1
Resistance to Fungi / Bacteria  ASTM G21/G22 No Growth No Growth
Freeze Thaw  ASTM C666 >25 >25
Robinson Floor Test ASTM C627 Light Commercial Not Rated for Floors

DATA SHEET/INSTALLATION INSTRUCTIONS

GoBoard LT Installation Instructions / Technical Data - English

GoBoard LT Installation Instructions / Technical Data - French

 

Goboard sealant

GoBoard Sealant Sheet

Alternative Sealants

 

goboard fasteners

GoBoard Fasteners Sheet

 

GOBOARD WASHERS

GoBoard Washers Sheet

 

GOBOARD LT Warranty

GoBoard Warranty

GoBoard Warranty - French

 

Available Documents

GoBoard® Shower System from Johns Manville is a time saving versatile shower system, and it's the right choice for both DIYers and pros.

GoBoard® Shower System from Johns Manville is a time saving versatile shower system, and it's the right choice for both DIYers and pros.

FAST INSTALLATION: Using GoBoard Point Drain kit and pre-sloped Wedges, there is no need to wait for specially sized pans. Take a break and tile the same day. Grout the next day and the project is done*.

INFINITE DESIGN POSSIBILITIES: The GoBoard Point Drain cover riser allows for height adjustment during tile installation and compatibility with threaded and non-threaded risers. Surrounding the drain, endless design configurations are possible with GoBoard Wedges and Curb. Also, the system is great for curb-less installations.

ULTRA-LIGHTWEIGHT: Engineered for durability even though it’s ultra-lightweight. The GoBoard Shower System can be installed in residential tile applications.

EASY TO CUT, HANDLE & INSTALL: GoBoard Wedge and GoBoard Curb can be quickly cut right where it’s installed with a basic utility knife without crumbling or disintegrating.

WATERPROOF BUILT-IN: GoBoard Shower System saves time and money because you seal only the board joints and fastener locations for a waterproof tile assembly**.

GOBOARD SHOWER SYSTEM INCLUDES:

GoBoard LT - ½" panels for walls and ceiling

GoBoard Point Drain Kit - Drain cover assembly, pre-assembled drain, mixing valve seal, pipe collar, clamping collar screws, and a 2” plastic putty knife.

GoBoard Wedges - Each is 4’x4’. Four Wedges is what is needed for most shower pan sizes.

GoBoard Curb - 3½" H x 2½" W x 48” L

GoBoard Sealant- Skins over quickly for a waterproof assembly.

* A typical shower project, waterproof installation, following manufacturer's installation.

** Board joints and fastener locations require GoBoard Sealant per GoBoard Point Drain installations instructions.

Go-Board-Point-Drain-Shower-System

GoBoard Shower System

INSTALLATION INSTRUCTIONS

GoBoard Point Drain Installation Instructions (English)

GOBOARD SEALANT

GoBoard Sealant Sheet (English)

Alternative Sealants (English)

WARRANTY

GoBoard Warranty English)

GoBoard Warranty (French)

 

Easily Install The GoBoard Shower System

Available Documents