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Mauiblue
Subfloor Not installed perpendicular to joists

Bathroom was gutted. Existing subfloor was 1/2" plywood so I requested my handyman to purchase grade BC 3/4" inch plywood to lay over the 1/2" plywood to prepare for tiling. Rather than lay the one sheet with the grain perpendicular to the joists he cut the board in half with the grain running parallel and nailed them into the joists.

Do I need to rip these out and have him do it over again?:eek:

Timothy Miller
Re: Subfloor Not installed perpendicular to joists

No but this may allow cracking of the tile an or grout. Is there enough room to allow you to install an tile underlayment on top perpendicular to the joists to stiffen the floor?

dj1
Re: Subfloor Not installed perpendicular to joists

Just a reminder:

Make sure that your existing joists will be able to support the added weight you intend to put on them.

HoustonRemodeler
Re: Subfloor Not installed perpendicular to joists

I tried to post the link but it failed.

In the John Bridge Tile Forum library there is a section on plywood. Read the bits about face grain orientation and the next one by Frank Woerst (sp) about the installation of the second layer.

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