role-selection
Welcome!
We'd like to make your visit as useful as possible. Please tell us your role so we can offer you the most relevant information on future visits. (This is the only time we'll ask you!)
role-selection-error ERROR * Please select a role and press SUBMIT
Select a Role:
role-selection
Welcome!
We'd like to make your visit as useful as possible. Please tell us your role so we can offer you the most relevant information on future visits. (This is the only time we'll ask you!)
Select a Role:
role-selection-error ERROR
* Please select a role and press SUBMIT
Thanks!
Please help us expand this feature by telling us your role.
(optional)
No Thanks      

FAQs - Mold & Mildew

Answers to your most common questions about preventing the growth of mold & mildew on acoustical ceilings.

Technical Information
CAD/REVIT Download Center
SketchUp Download Center
Build a Specification
Build a Submittal
Data Pages
Product Literature
MSDS
Installation
Maintenance
Warranties Seismic Solutions FAQs
Glossary
Continuing Education
Chat Live

Use our FAQ database to look up answers to frequently asked questions. The questions are grouped with topics of a similar nature to shorten your process.

  
Select a topic below:
Acoustics
Field Painting
Fire Performance
Seismic
Product Selection
 
Clean Room
Indoor Air Quality
Mold & Mildew
 
Cleaning
Installation
 
Continuous Ceilings
vs. Exposed Structure

 

Commercial Ceiling Systems Resistance to Mold & Mildew
Claims and Counter-Claims
 Shouldn't it all add up?  Yes, it should. . .
  • Since 1998 Armstrong has produced more than 1 Billion square feet of ceilings with BioBlock performance.  The market result:
    • In five years, no claims for mold and mildew growth when installed and maintained in appropriate environmental conditions.
  • All mineral fiber ceilings specified for high humidity spaces, with any organic content, should include the added protection of a mold and mildew inhibitor, such as Armstrong's BioBlock.
    • All 115 Armstrong mineral fiber HumiGuard Plus ceiling products include BioBlock to resist the growth of mold and mildew.
  • SGS US Testing* - an independent ASTM-certified laboratory - tested Armstrong ceilings with BioBlock performance 43 times since 1998:
    • 40 tests:  Ceilings with BioBlock® performance scored a perfect "no mold growth, 0%."
    • 3 tests:  Ceilings with BioBlock performance scored "traces" of mold growth, that is, less than 10% of the surface was affected.
    • In all 43 tests, ceilings with BioBlock performed consistently.  All samples tested had 0-10% growth.**
    • The rating scale had no impact on the 43 test results.  The G-21 rating scale requires that for a 0 or 1 to be awarded, it must be verified with a microscope.  SGS US Testing verified all 43 results with a 100x microscope.
    • In SGS US Testing, the positive control (100% organic pine material) grew to "heavy mold growth."  The negative controls had "no mold growth," which is consistent and predictable with the test protocol.
  • Our tests are certified and frequent, the results are consistent, and BioBlock® performance effectiveness is validated in the lab (43 tests) and the marketplace.  (Five years no claims)

*SGS US Testing is an independent, certified laboratory that has performed mold and mildew tests for 25 years. They performed the ASTM D-3273 test of mold and mildew resistance on the 43 tests of Armstrong ceiling material described above. Please visit SGS US Testing to learn about their world leadership position in verification, testing and certification services.

**Armstrong ran one set of 27 tests in 2000 containing sample test results with two samples, and some with three samples. Per ASTM D3273 7.1, duplicates are allowed instead of triplicates, if agreed upon by the parties involved.

  • The following tests were performed in 2006.

Product

SGS US Testing Report

Mesa

SGS Report

  • The following tests were performed in 2002.

Product

SGS US Testing Report

Armatuff

SGS report

Cirrus

SGS report

Cirrus Open Plan

SGS report

Clean Room Mylar

SGS report

Clean Room VL

SGS report

Crossgate

SGS report

Dune

SGS report

Dune Second Look

SGS report

Fine Fissured Fine Look

SGS report

Fine Fissured Fire Guard

SGS report

Fine Fissured Minaboard

SGS report

Fine Fissured High-NRC

SGS report

Fine Fissured Second Look

SGS report

Georgian

SGS report

Tundra

SGS report

Ultima

SGS report


  • The following tests were performed in 2000.

Product

Item No.

SGS US Testing Report

Cirrus

578b

SGS report

Cirrus High-NRC

556b

SGS report

Cirrus Profiles

557a

SGS report

Dune

1774

SGS report

Fine Fissured

1728

SGS report

Fine Fissured

1728

SGS report

Fine Fissured

1728

SGS report

Fine Fissured

1728

SGS report

Fine Fissured

1728a

SGS report

Fine Fissured

1728acr

SGS report

Fine Fissured

1729

SGS report

Fine Fissured

1729

SGS report

Fine Fissured

1729a

SGS report

Fine Fissured

1729a

SGS report

Fine Fissured

1730

SGS report

Fine Fissured

1730

SGS report

Fine Fissured

1732

SGS report

Fine Fissured (sold in Brazil)

3409

SGS report

Fine Fissured Fire Guard

1830

SGS report

Fine Fissured High-NRC

1754

SGS report

Fine Fissured Second Look

1761b

SGS report

Fine Fissured Second Look Fire Guard

861

SGS report

Georgian

763

SGS report

Georgian

763

SGS report

Minatuff (sold in the Middle East & Asia)

893

SGS report

Tundra

301a

SGS report

Ultima

1913

SGS report

 Back to Top
 
PLEASE NOTE

Please provide a properly formatted email address. (example: email@company.com)
My Armstrong | View Cart
Change Country | Français Canada
Search
COMMERCIAL CEILINGS & WALLS | USA & Canada