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  • Haley Dang

How to install Duragreen Fiber cement board on floors

It is essential to choose right material for installing floor which protects your home or industrial building from moisture, humidity damage , fire damage. So Duragreen Fiber cement board is a perfect choice helping you do anything without worrying because Duragreen fiber cement board will guarantee your projects last.

Below is what you need to install Duragreen Fiber cement board properly:

• Modified dry-set cement mortar and/or dry-set cement

• 2” wide, high-strength, alkali-resistant glass fiber tape

• Corrosion-resistant roofing nails or 1.25” minimum screws • Trowels •  Carbide-tipped scoring knife (recommended), utility knife, or shears

Here are 5 necessary steps for installing Duragreen fiber cement board

1 | Ensure subfloor is structurally sound

On existing structures: • Ensure subfloor is not damaged. Replace any loose, warped, uneven or damaged sections of floor. • Make certain subfloor is a clean and flat surface.

For all floors: • Use minimum 5/8 exterior grade plywood or 23/32 OSB with Exposure 1 classification or better, complying with local building codes and ANSI A108.11. • Joist spacing not to exceed 24 in on center. • The floor must be engineered not to exceed the L/360 deflection criteria (L/720 for natural stone), including live and dead design loads, for the specific joist spacing used.

2 | Determine layout of Duragreen fiber cement board • Stagger all Duragreen fiber cement board joints. Do not align with subfloor joints. • Never allow all four corners of boards to meet at one point. • We recommend an 1/8 in gap between board edges. • Keep sheet edges 1/8 in back from walls and cabinet bases. • Score and snap boards to required sizes and make necessary cutouts.

3 | Attach Duragreen fiber cement board to subfloor • Apply a supporting bed of mortar or modified thinset to subfloor using a 1/4 in square-notched trowel. • Embed Duragreen fiber cement board firmly and evenly in the wet mortar. • Use the fastener pattern as a guide. Fasten Duragreen fiber cement board with specified nails or screws every 8 in over the entire surface. Keep fasteners between 3/8 in and 3/4 in from board edges and 2 in from board corners. • Set fastener heads flush with the surface without overdriving.

4 | Tape joints prior to tiling

• Prior to setting the tile, fill all joints with the same mortar used to set the tiles. • Embed 2 in wide high-strength alkali-resistant glass fiber tape in the mortar and level.

Source: The Spruce

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