Get Help from Bob Vila
- Give-Aways & Offers
- Monthly Must Do's
- DIY Project Ideas
- Step-by-Step Guides
- Inspirational Photo Galleries
If you’re remodeling or adding a bathroom, use cement board as an underlayment. A bit of hardened mortar is sandwiched between two layers of fiberglass sheets. It cuts and trims like sheet rock, but it provides a waterproof layer under wall or floor tile. To attach it, drill a pilot hole first, then use galvanized drywall screws.
For more on building materials, consider: