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Acoustic Membrane VL65 Sound barrier
Product Code: A121
*Free Delivery: Selected items, Selected postcodes only, orders £1000+ only
Traceability: Yes
UK Origin: Europe
Availability: In Stock
Download Description: For Registered Users Only
*Free Delivery: Selected items, Selected postcodes only, orders £1000+ only
Traceability: Yes
UK Origin: Europe
Availability: In Stock
Download Description: For Registered Users Only
Price: £41.95
Qty:
VL65 High Performance Acoustic Membrane
A Revit / BIM Family object file is available for this product.
Recycled contect used in this product
Features
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Benefits
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Product description
VL-65 is a high mass, visco-elastic acoustic damping membrane with the added advantage of improved low frequency performance over our other acoustic membranes. It is internally reinforced with a micro fibreglass carrier for improved dimensional stability.
Applications
- Soundproofing against airborne noise in floors, walls and ceilings when used in conjunction with other low surface density materials.
- VL-65 is acoustically equivalent to lead of the same surface weight.
- When bonded between stiff rigid sheet materials it greatly reduces the resonance and coincidence dips.
- Stapled over frameworks it greatly improves the performance of lightweight partitions.
- When bonded to resonating metal panels it greatly reduces vibration and re-radiated noise.
- Offers high acoustic performance when combined with sound absorbent materials.
- Can be used for damping of impact noise caused by atmospheric agents on metal deck roofs.
Acoustic Performance
| Freq, f, Hz, | 50 | 63 | 80 | 125 | 250 | 500 | 1000 | 2000 | 4000 | Rw |
| R. (dB) | 17.5 | 18.7 | 10.9 | 17 | 21 | 24 | 29 | 34 | 39 | 28 |
| Test Report Number: 130702/002 | ||||||||||
Technical Data
| VL-65 Technical Data | |
| Density | 1.9g/cm3 (+/-0.05) |
| Colour | Black |
| Roll Size | 5.5m x 1m |
| Weight | 6.5kg/m2 |
| Thickness | 4mm |
| Fire Resistance | >B,s1,d0 when used in partitions as shown below |
| Water Vapour resistance (µ) | 50000 |
| Maximum tensile strength | 350 ±150 / 250 ± 100 EN 12311-1 |
| Elongation | ±45 EN 12311-1 |
| Cold Flexibility | -10°C; EN1109 |
| High Temperature flow resistance | 120°C; EN1110 |
VL-65 eliminates the coincidence dip around 2.5kHz found in rigid sheet materials such as plasterboard on studwork by 12dB.
The tests below show standard studwall constructions with and without VL-65 sandwiched between the sheets.
The low frequency resonance dip at around 160Hz is reduced by 8dB.
This superb material will improve the overall averaged Rw of a stud partition, as shown below, by 6dB.
Noise Control Soundproofing and Acoustics © 2020
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