Installation Guide

ManualsBrandsJohns Manville ManualsBacker Board90016810

Durable, Ultra-lightweight, Waterproof Tile Backer Board

GoBoard

is available in six thicknesses:

– 4" for ﬂoors and countertops

– 2" and s" for walls, showers, ceilings and ﬂoors

– 1", 12" and 2" for walls, benches, shelves, tub surrounds,

vanities and countertops

GoBoard

is the ultra-light, waterproof tile backer board from Johns Manville. It’s engineered for

durability, yet is up to 80% lighter than cement boards. GoBoard

is easy 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.

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

**Only board joints and fastener locations require a waterproof sealant per GoBoard installation instructions.

Ultra-lightweight

Up to 80% lighter than cement boards, yet engineered for durability

Easy to cut, handle & install

Simply attach with backer board screws or rooﬁng nails

Waterproof built-in

Seal only the board joints and fastener locations for a

waterproof tile assembly per GoBoard installation instructions

Fast installation

Complete shower tile projects in half the time or less

Summary of content (4 pages)

PAGE 1
Durable, Ultra-lightweight, Waterproof Tile Backer Board GoBoard® is the ultra-light, waterproof tile backer board from Johns Manville. It’s engineered for durability, yet is up to 80% lighter than cement boards. GoBoard® is easy 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.
PAGE 2
GoBoard® 4" for Floors & Countertops – Installation Instructions WOOD FLOORS Framing, Control Joints and Subfloor Requirements: Framing: • All framing should comply with local building code requirements. • Support framing must be designed for a maximum allowable assembly deflection of L/360 (L/720 for stone) under all intended live loads. Control Joints: • Consult TCNA Handbook installation Method EJ171. • Location, width and details of control joints should follow sound architectural practices.
PAGE 3
GoBoard® ½" and s" for Walls, Showers, Ceilings & Floors – Installation Instructions WALLS Framing Requirements: • All framing should comply with local building code requirements. • Framing members shall be spaced a maximum of 16" o.c. and shall be a minimum of 2"x 4" nominal (wood) or No. 20 gauge (metal). • Studs shall be furred out flush with receptors and GoBoard® edges should be continuously supported.
PAGE 4
GoBoard® Approved Materials, Safety, Technical & Other Information APPROVED MATERIALS • For floor installations, tiles installed onto GoBoard® must be a minimum of 6" in size (individual tile dimensions). • Fastening: Wood – Galvanized roofing nails (12" long) or • • • backer board screws (14" long). Steel Framing – Backer board screws (14" long). Bonding: Dry set mortar compliant with ANSI A118.1 standard or Polymer modified thin-set mortar compliant with or ANSI A118.4 standard.