#MESH DRYWALL TAPE VS PAPER CRACK#

Applying a Minimal Amount of Mud Over The Tape: As you go along, ensure that you press firmly enough on each piece so that it adheres properly.ĭon’t press too hard, as this can cause tears in either material or damage your wall edges beyond repair.

Tape the remaining sides until they are all completed. To do this, start in one corner and unroll several feet of tape along one side until you reach the opposite corner. Taping off the Seam with Fiberglass Drywall Tape:Īfter all, edges are properly secured, fiberglass drywall tape should be applied over all seams between the cement board and drywall pieces. Once secured, any excess material should be trimmed away with a utility knife or saw if needed. Ensure that there is at least a one-inch overlap of cement board at both edges of walls and ceilings before securing it into place. Cutting and Securing the Drywall:īefore sealing seams in cement boards, cut the drywall so it matches up with the thickness of the cement board. You Might Also Like: How do you re-tape over ripple drywall tape? Step 2. It is also helpful to have some sandpaper and a paintbrush on hand in case there are any high spots that need to be sanded down at the end of sealing the seams. This preparation includes a roll of fiberglass drywall tape, joint compound, a sponge or rag for cleaning up excess mud, and a utility knife or saw for cutting the drywall. Gather the necessary tools and materials required to seal seams in cement boards. How Do You Seal Seams in Cement Boards with Drywall Tape? The use of metal drywall tapes is not recommended on cement boards since they are too rigid and inflexible to fill in gaps and irregularities between cement board pieces.įurthermore, metal tapes don’t provide good adhesion against cement boards due to their tendency to corrode when exposed to moisture over time which can lead to rusting and deterioration of their material quality.

#MESH DRYWALL TAPE VS PAPER CRACK#

Paper drywall tape should not be used on cement boards because it is not strong enough to withstand the rigors of providing a seamless, firm seal between the drywall and the cement board.Īdditionally, the paper tape may become brittle over time in an alkaline environment when in contact with moisture and humidity, which can cause it to crack or tear away from the surface of the cement board. What Tape Do You Not Use on the Cement Board? 1. This tape is also quite strong despite its thin size, making it ideal for creating long-lasting seals around corners and other hard-to-reach areas on cement board surfaces. Ultra-thin fiberglass drywall tape is an even better choice for use on cement boards due to its incredibly thin profile, allowing it to easily fit into tight spaces that are too narrow for traditional metal or paper drywall tapes. This type of drywall tape also provides superior adhesion and creates a more reliable seal against water intrusion or air leakage. The mesh-like structure of fiberglass mesh drywall tape gives it additional strength and flexibility when filling in gaps between cement board pieces. Fiberglass mesh drywall tape is a better option for use on cement boards since it is made of a stronger material than paper drywall tape and is less prone to cracking or tearing when exposed to moisture and humidity.

Mesh drywall tape vs paper