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GoBoard LT - Canada
GoBoard LT


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.

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 |

GoBoard LT Tile Backer Board
GoBoard LT Data Sheet / Installation Instructions (English)
GoBoard LT Data Sheet / Installation Instructions (French)
GoBoard Pro Sealant
GoBoard Pro Sealant (English)
GoBoard Pro Sealant (French)
Alternative Sealants
GoBoard Fasteners
GoBoard Fasteners (English)
GoBoard Fasteners (French)
GoBoard Washers
GoBoard Washers (English)
GoBoard Washers (French)
GoBoard Seam Fabric
GoBoard Warranty
GoBoard Warranty (English)
Certifications