What's the Difference: More Moisture-Resistant Drywall - Fine Homebuilding Article
  • Remodeling Articles
    Remodeling Articles
  • Clever daily tip in your inbox
    Clever daily tip in your inbox
  • Install a Vinyl Privacy Fence
    Install a Vinyl Privacy Fence
  • Energy-Smart Details
    Energy-Smart Details
  • 7 Trim Carpentry Secrets
    7 Trim Carpentry Secrets
  • All about Roofing
    All about Roofing
  • Basement Remodeling Tips
    Basement Remodeling Tips
  • Video Series: Tile a Bathroom
    Video Series: Tile a Bathroom
  • 7 Smart Kitchen Solutions
    7 Smart Kitchen Solutions
  • Deck Design & Construction
    Deck Design & Construction
  • Master Carpenter Videos
    Master Carpenter Videos
  • 9 Concrete Countertop Ideas
    9 Concrete Countertop Ideas
  • Design Inspiration
    Design Inspiration
  • Tips & Techniques for Painting
    Tips & Techniques for Painting
  • Read FHB on Your iPad
    Read FHB on Your iPad
  • Magazine Departments
    Magazine Departments
  • 7 Small Bathroom Layouts
    7 Small Bathroom Layouts
Pin It

What's the Difference: More Moisture-Resistant Drywall

Discover the differences between treated-paper drywall vs. fiberglass facings drywall for use in moisture-resistent situations

When it comes to choosing drywall for the moist areas of your house, two moisture- and mold-resistant products are made to fit the bill: treated paper-faced and fiberglass-faced drywall.

Manufacturers claim that each type offers superior performance and mold resistance over regular, untreated paper-faced drywall.

To sort out the differences in working with each product, I tapped the knowledge of drywall contractor and frequent Fine Homebuilding contributor Myron R. Ferguson.


The major difference between this drywall and ordinary drywall is that it’s treated with a mold inhibitor such as sodium pyrthione.

Myron's Feedback: I install this drywall just like ordinary drywall, except I use fiberglass tape on the seams because paper tape is mold food. I also use setting-type compound, which is more difficult to work with, but more moisture resistant. The big issue is skim-coating. This drywall fuzzes up after sanding, so it needs to be skim-coated to achieve a high-level finish.

Cost of  4x8 Sheet: Roughly $9


This drywall has an inorganic facing of fiberglass, which is less likely to promote mold growth.

Myron's Feedback: I also tape this drywall’s seams with fiberglass mesh and setting-type compound, which is less water soluble. Early products were really coarse, which posed a finishing problem, but newer versions are a lot smoother. I skim-coat only if I need a high-level finish. Airborne fiberglass is an issue, so I wear long sleeves, gloves, and a respirator when installing these panels.

Cost of  4x8 Sheet: Roughly $18

Photo: Rodney Diaz
From Fine Homebuilding208 , pp. 82
Next Article
Next Article: Online Membership Required