Mold Tough paper system for moisture- and mold-sensitive interior scopes per USG family positioning
Key features
Standard 4x8 module for residential and light commercial stocking and lifts
Verify panel stamp for UltraLight, Firecode, or UL Type designations before substituting on rated jobs
Technical specifications
| R-Value | 0.45 |
|---|---|
| Thickness | 0.5 in |
| Width | 48.0 in |
| Length | 96.0 in |
| Coverage | 32.0 sq ft/pack |
| Material | Noncombustible gypsum core with moisture- and mold-resistant face and back papers (Sheetrock Mold Tough family per USG) |
| Fire rating | Noncombustible gypsum core; Mold Tough papers per USG family. Retail title does not state Firecode C or UL Type C—verify Type X needs and panel edge stamps before rated assemblies. |
| Sound rating | Acoustic performance is assembly-dependent; gypsum finish layers contribute to STC in tested partition assemblies (ASTM E90). |
| Density | Planning weight ~1.625 lb/sq ft (~52 lb per 4x8) using typical industry gypsum board planning values; confirm on USG shipment documentation for this catalog suffix |
| Construction type | ASTM C1396 gypsum wallboard scope typical of Sheetrock Mold Tough panels; confirm water-resistant / Type X subclass on submittal |
| Application area | Interior walls and ceilings where Mold Tough panels are specified; coordinate wet-area backers separately per code |
Product details
Retail listings sometimes shorten USG trademarks, which creates procurement risk: a truck labeled Mold Tough may omit UltraLight or Firecode branding even though edge stamps carry the real engineering story—always reconcile purchase orders to physical markings before hanging rated lines.
This four-by-eight Mold Tough gypsum panel covers thirty-two square feet; YEARS uses a planning weight near fifty-two pounds (~1.625 lb per square foot) as a common distributor planning class for standard half-inch board until your USG submittal confirms the exact density for this catalog suffix.
Expect Mold Tough family positioning—moisture- and mold-resistant papers and a noncombustible gypsum core per USG SDS and family literature—with ASTM C1396 and ASTM D3273 references where USG publishes them for the specific commodity.
Because retailer titles may not state Type X, do not hang this SKU in a listed fire partition until the edge UL type matches the drawing; step up to Mold Tough Firecode X or other listed boards when the spec demands SCX or equivalent.
Confirm market pricing independently; YEARS captured an internal estimate, not a live scrape—bid from distributor quotes and update ERP costs the same day steel or fuel surcharges move.
Documents & certifications
Technical data sheet
Manufacturer-tested R-value, coverage, fire notes, and handling—use for submittals, RFIs, and field QA.
Download PDF (opens in new tab)Certifications & compliance
See USG product-specific submittal for exact SKU; family literature references ASTM C1396 and ASTM D3273 mold-surface testing for Mold Tough lines
Frequently asked questions
Is this panel automatically Type X?
Is this panel automatically Type X?
Not from the retailer title alone. Read the UL type and product name on the panel edge and match to your spec; use Firecode C or Firecode X SKUs when Type X is required.
Why does YEARS show ~52 lb per sheet?
Why does YEARS show ~52 lb per sheet?
That planning weight follows common distributor guidance for standard 1/2 in. gypsum board density classes; always confirm on the bundle label.
Can I use Mold Tough in a shower?
Can I use Mold Tough in a shower?
Direct wet areas usually need cementitious or other approved backers per TCNA and code; Mold Tough is not a blanket substitute without documentation.
Where is the official PDF?
Where is the official PDF?
Download the USG submittal that matches the stamped commodity on your delivery; an SDS is linked for safety data but engineering specs come from the submittal.