The industry standard for use over wood subfloors in multifamily construction. Provides sound and fire control. Its smooth surface is ideal for finished floor goods.
Product Description
Gyp-Crete® Floor Underlayment is one of the most efficient fire and sound control products available. In wood frame and concrete projects, Gyp-Crete makes for safer, quieter living, and has become a standard in apartments, condominiums, townhomes, hotels and motels.
Gyp-Crete® Techinical Data:
| Compressive Strength: | Up to 2000 psi (14 MPa) |
| 'K' Factor: | 4.75 Btu/(h · ft2 · °F) (.6840 W/[m · °C]) |
| Specific Heat: | .223 Btu/(lb · °F) at 85°F (.9343 kJ[kg · °C] at 29.44°C) |
| Weight: | At 3/4", less than 6.5 lbs./sq.ft. (At 19 mm, less than 31.8 kg/m2) |
| Dry Density: | 100 lbs./ft.3 (1600 kg/m3) |
| Point Loading: | Minimum loading of 550 lbs. on a 1" (250 kg on a 25.4 mm) diameter disc |
| Surface Burning Characteristics: |
Flame spread: 0 Fuel contributed: 0 Smoke density: 0 |
| VOC: | < 24 mg/m3 |
Downloads:
Product Specifications
- Multifamily Housing
- Multifamily Housing (Dura-Cap® Hard Surface Areas)
- Multifamily Housing (Level-Right Cementitious Self-Leveling Underlayment in Hard Surfaced Areas)
- Over Extruded or Expanded Polystyrene Foam
- Multifamily Housing After Removal of 1-1/2 in. Lightweight Concrete
- Multifamily Housing After Removal of 1-1/2 in. Lightweight Concrete and Installation of 1/2 in. Wood Floor Panel
Fire Ratings / Detail Drawings ( View Hide )
| Detail Drawings | Description | DWG | |
|---|---|---|---|
| FR-SYSTEM | 2 HOUR - PFS Design No. FC-452 (NER-392) | Download | Download |
| WOOD I JOIST |
1 Hour - UL Design No. L518, UL Design Nos. 530 & 531 w/Simpson Strong-clips; 1-1/2 Hour - UL Design No. L547 TJI®, furring channels without batt insulation; 2 Hour - UL Design No. L538
|
Download | Download |
| PARALLEL CHORD TRUSS |
1 HOUR - U.L. Design Nos. L528, L529, L534 w/batt insulation - L546, L555, L563, L579 w/furring channels & 2 layers 1/2" Gypsum Board - L542 w/batt or loose fill insulation - L574 w/resilient channel & batt insulation - L558, L562 |
Download | Download |
| WOOD JOIST | 2 HOUR - U.L. Design Nos. L505, L511, L536, L541 | Download | Download |
| TJL TRUSS | 1 HOUR - U.L. Design No. L518 and PFC - 4354 | Download | Download |
| WOOD JOIST |
1 HOUR - U.L. Design Nos. Gypsum board screwed direct - L501, L503, L506, L507, L509, L512, L519, L522, L537, L557 Resilient channel - L502, L513, L514, L515, L523, L535 2 Layers gypsum board w/resilient channel - L517, L532 Acoustical ceiling - L001, L003, L004, L206, L525 Suspended Ceiling: L005, L006, L201, L202, L208, L209, L210, L211, L212, L508, L526 w/batt insulation & furring channels - L508; furring channels - L510 w/resilient channel & batt insulation - L516, L533, L545, 1 1/2 Hour - L532, w/batt insulation, furring channels & 2 layers Gypsum Board |
Download | Download |
| BAR JOIST FRAMING | 1 HOUR - Warnock Hersey Test #WH1-694-029 | Download | Download |
| PRECAST | 2, 3 and 4 HOUR - U.L. Design Nos. J917, J919, J920, J924, J927, J931, J957, J966, J991, J994, K906 | Download | Download |
| LIGHT GAUGE STEEL |
1 HOUR - U.L. Design No. L524, furring channels and 2 layers 5/8" Gypsum Board - L573 Metal joist, Viroc subfloor, batt insulation with resilient channel and 1 layer 5/8" Type C Gypsum Board - L564 1 1/2 Hour - w/resilient channel & 2 layers, 5/8" Gypsum Board - L527 |
Download | Download |
| POLYSTYRENE SYSTEMS | Detail Drawing | Download | Download |
| SPACEJOIST TE |
1 Hour - No. TSC/FCA 60-01 Without resilient channel, w/ TrusGard® Protective Channel No. FC378 |
Download | Download |
| HAMBRO SYSTEMS | 1, 1 1/2, 2 Hour - UL Design No. G524 | Not Available | |
| Additional U.L. Design Numbers: (not pictured) |
L504 - Prefabricated Floor Panels, 1-hour assembly L520 - 2x10 Wood Joist 3/4-hour assembly L539 - 2x10 Wood Joist 1-hour assembly L540 - 2x10 Wood Joist 1-hour assembly L543 - Steel Joist 1-hour assembly L544 - Willamette I Beam Truss 1-hour assembly L548 - Epic Building Systems, Inc. 1-hour assembly L549 - Steel Chord & Web Truss 1-hour assembly L551 - Steel Chord & Web Truss 1-hour assembly L552 - Steel Truss 1-hour assembly L553 - Steel Truss 1-hour assembly L556 - Willamette I Beam Truss 2-hour assembly L559 - Steel Chord & Web Truss 1-hour assembly L560 - Steel Truss 1-hour assembly |
Not Available | |
Underwriters' Laboratories of Canada Fire Rated Listings: L003, L201, L511, L512, M500, M501, M503, M508.
Sound Ratings ( View Hide )
| Sound Ratings - Tested Assemblies | Maxxon Underlayments | Batt Insul. | Ceiling Susp. on Chan. | Ceiling Drywall | Floor Covering | Rating* | Test Number |
|---|---|---|---|---|---|---|---|
|
Wood Joist w/ 5/8" (16 mm) plywood subfloor, 2" x 10" (51 mm - 254 mm) joists |
3/4" (19 mm) 3/4" (19 mm) 1" (25 mm) 3/4" (19 mm) 3/4" (19 mm) 1" (25 mm) 1-3/8" (35 mm) 3/4" (19 mm) 1-3/8" (35 mm) 1-3/8" (35 mm) |
3-1/2" (89 mm) No No 2-1/2" (64 mm) No No 3-1/2" (89 mm) No 3-1/2" (89 mm) 3-1/2" (89 mm) |
Yes Yes No Yes Yes No Yes Yes Yes Yes |
1/2" (13 mm) 1/2" (13 mm) 1/2" (13 mm) 5/8" (16 mm) 5/8" (16 mm) 1/2" (13 mm) 1/2" (13 mm) 1/2" (13 mm) 1/2" (13 mm) 1/2" (13 mm) |
None None None Carpet and Pad Carpet and Pad Carpet and Pad Foam-Back Parquet Cushioned Vinyl Vinyl Composition Tile Vinyl |
60-STC 58-STC 50-STC 79-IIC 75-IIC 56-IIC 55-IIC 50-IIC 51-IIC 51-IIC |
TL81-16 TL81-17 TL81-19 5-761-2 5-761-4 IN81-6 IN81-11 IN81-3 IN81-13 IN81-14 |
|
Wood Joist w/ 5/8" (16 mm) plywood subfloor, 2" x 10" (51 mm - 254 mm) joists, .4" (10.2 mm) Enkasonic® |
1-1/2" (38 mm) | Yes | Yes | 5/8" (16 mm) | Ceramic Tile | 57-IIC | IN88-2 |
|
Wood Joist w/ 3/4" (19 mm) OSB subfloor, 2" x 10" (51 mm - 254 mm) joists |
3/4" (19 mm) | 3-1/2" (89 mm) | Yes | 5/8" (16 mm) | Wood Flooring | 53-FIIC | 90-0156.2 |
|
TJL® Truss with 5/8" (19 mm) plywood subfloor |
3/4" (19 mm) 3/4" (19 mm) 1" (25 mm) 1" (25 mm) |
No No No No |
Yes Yes No No |
5/8" (16 mm) 5/8" (16 mm) 5/8" (16 mm) 5/8" (16 mm) |
None Cushioned Vinyl None Cushioned Vinyl |
62-FSTC 61-IIC 51-FSTC 52-IIC |
5-905 5-905-2 5-905-1 5-905-3 |
|
TJI® Joist with 3/4" (19 mm) T&G OSB subfloor |
3/4" (19 mm) 3/4" (19 mm) |
3 1/2" (89 mm) 3 1/2" (89 mm) |
Yes Yes |
5/8" (16 mm), 2 layers 5/8" (16 mm), 2 layers |
None Cushioned Vinyl Cushioned Vinyl Cushioned Vinyl |
59-STC 54-IIC 50-IIC 51-IIC |
TL96-250 IN96-28 IN96-30 IN96-29 |
|
Parallel Chord Truss 2" x 4" (51 x 102 mm) 12" deep with 3/4" (19 mm) T&G OSB, .4" (10.2 mm) Enkasonic® |
1-1/2" (38 mm) 1-1/2" (38 mm) |
Yes Yes |
Yes Yes |
5/8" (16 mm) 5/8" (16 mm) |
None Carpet and Pad |
59-FSTC 83-FIIC |
87-729-13 87-729-7 |
|
Truss Plate Institute with 3/4" (19 mm) T&G plywood subfloor |
3/4" (19 mm) 3/4" (19 mm) 3/4" (19 mm) |
Yes (blown-in) Yes (blown-in) Yes (blown-in) |
Yes Yes Yes |
5/8" (16 mm) 5/8" (16 mm) 5/8" (16 mm) |
Vinyl Vinyl Ceramic |
57-FSTC 50-FIIC 46-FIIC |
98.67280.10 98.67280.1 98.67280.12 |
| Precast Concrete |
1/2" (13 mm) 1/2" (13 mm) 1/2" (13 mm) |
No No No |
No No No |
No No No |
None Cushioned Vinyl Direct Glued Carpet |
58-FSTC 66-IIC 75-IIC |
5-896 5-896-1 5-896-2 |
|
Metal Joist 9 1/2" (247 mm) w/ 3/4" (19mm) T&G OSB subfloor |
3/4" (19 mm) 3/4" (19 mm) 3/4" (19 mm) |
3 1/2" (89 mm) 3 1/2" (89 mm) 3 1/2" (89 mm) |
Yes Yes Yes |
5/8" (16 mm) 5/8" (16 mm) 5/8" (16 mm) |
Vinyl Carpet and Pad Carpet and Pad |
49-FIIC 51-FSTC 73-FIIC |
94-2278 94-2168.1 94-2168.2 |
|
SpaceJoist® Metal Web Truss 16" deep w/ 3/4" (19 mm) T&G OSB subfloor |
3/4" (19 mm) 3/4" (19 mm) 3/4" (19 mm) 3/4" (19 mm) |
3 1/2" (89 mm) 3 1/2" (89 mm) 3 1/2" (89 mm) 3 1/2" (89 mm) |
Yes Yes Yes Yes |
5/8" (16 mm) 5/8" (16 mm) 5/8" (16 mm) 5/8" (16 mm) |
Vinyl Mannington 3/8" laminate floating floor over Quietwalk Carpet and Pad Carpet & Tile |
51-FIIC 54-FIIC 70-FIIC 52-FSTC |
51210-4 51210-5 51210-3 51210-1 |
FSTC - Field Sound Tranmission Class in accordance with ANSI/ASTM E 336 and E 413.
STC - Sound Transmission Class in accordance with ASTM E 90 and E 413.
IIC - Impact Insulation Class in accordance with ASTM E 492.
FIIC - Field Impact Insulation Class in accordance with ASTM E 1007 and E 989.
All acoustical testing was done by Riverbank Testing Laboratories; Intest, Inc.; or Twin City Testing Corporation. For type of floor covering used, channel spacing and other information, contact Maxxon for test reports by number. For good acoustical performance, the selection of a floor/ceiling system attaining a minimum 60 STC and IIC is recommended. Systems attaining ratings less than 55 STC and IIC provide only marginal acoustical performance. The Maxxon floor underlayments and Acousti-Mat® are but single components of an effective sound control system. No sound control system is better than its weakest component. Care must b taken in the installation of all components of construction to assure the ultimate designed acoustical performance.
