Green Glue in a Steel Stud Wall Assembly
The Green Glue Company is pleased to present data for steel stud walls of nominally identical construction with and without Green Glue. The data was collected at Orfield Laboratories, an independent NVLAP accredited lab in Minneapolis, MN, in 2005 and 2006.
Test Description - Steel stud walls were tested with and without Green Glue.
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Conventional Assembly II |
Green Glue Assembly II |
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Source Side: |
1/2” drywall + 1/2” drywall |
1/2” drywall + Green Glue @ 58 fluid ounces per 4’ x 8’ sheet + 1/2” drywall |
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Wall Framing: |
3 5/8” 25 gauge steel studs, 24” on-center |
3 5/8” 25 gauge steel studs, 24” on-center |
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Insulation: |
3.5” fiberglass insulation |
3.5” fiberglass insulation |
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Recieving Wall: |
1/2” drywall + 1/2” drywall |
1/2” drywall + Green Glue @ 58 fluid ounces per 4’ x 8’ sheet + 1/2” drywall |
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Test Number: |
OL 06-0633 |
OL 05-0833 |
Wall configurations, from source room to receive room.
Official lab reports are available; the applicable test numbers are given in the chart below.
STEEL STUDS COMPARISON
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Wall Setup
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STC | OITC | Rw | Rw + Ctr* |
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Conventional Assembly
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50 | 32 | 49 | 40 |
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Green Glue Assembly
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59 | 40 | 58 | 49 |
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* Rw + Ctr is a measure of sound isolation common in Europe
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assemblies we’ve tested were 25 gauge steel studs,
24” OC, 3.5” of fiberglass insulation and double
drywall on both sides.
Summary:
As with wood stud walls, Green Glue has proven its worth in more flexible steel stud constructions. Green Glue’s outstanding fire performance also allows steel stud wall constructed for fire purposes to maintain their fire rating, while exhibiting notably improved sound isolation.
These documents may also be of aid:
1. Green Glue vs. Extra Drywall - Does GG really outperform just adding more layers of drywall?
2. Green Glue vs. Mass Loaded Vinyl - This page compares GG to two different MLV applications.
3. Green Glue vs. Engineered Damped Glue - This page compares GG to other manufactors damping glue.
4. Green Glue vs. Factory Damped Panels - This page compares GG to a better-known factory-damped drywall.
5. Green Glue vs. Soundboard - This page compares GG and soundboard, a commonly used sound isolation product.
6. Green Glue vs. Resilient Channel - GG compared to the oldest and most commonly used sound isolation product.
7. Green Glue vs. Construction Adhesive - GG is not an adhesive, but some think you can use construction adhesive.
8. Green Glue in Steel Stud Wall - This page compares GG to an identical steel stud wall not using GG.