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Acoustics and security for installation:A fire and acoustic hood is designed to cover the back of in-ceiling and in-wall speakers and is a legal requirement for many new buildings. However, whether legally required or not, we would recommend them as a safety measure. Using a fire and acoustic hood helps to resist the spread of fire through the floors of a building and reduce the transmission of noise to adjacent rooms and properties. The hoods maintain the fire rating of the ceiling to which they are mounted, enabling 30 or 60 minute fire rating maintenance. Tested in the UK Building Test Center and complies with Part B and Part E of the UK Building Regulations - reports available on request. When a speaker is installed in a ceiling or wall, it can help transmit unwanted sound, potentially to another property, even when the speaker is not in use. Adding these caps effectively restores the acoustic integrity of the ceiling or wall. When the speaker is in use, it can also reduce the rear transmission of sound by about 10 dB in the mid to high frequency range. Prevention of transmission of low (bass) frequencies is a specialist field and may require considerable additional treatment. Specifications: • Is suitable for installing ceiling speakers with 6.5" units. • Qi 65CF - Dia. 290mm, Depth 100mm • Woven glass fabric: thickness - 0.40 mm, weight/m² - 430 g/m² • Warp count: 1360 d'tex • Finish: Starch woven clasp • SPONGE PROPERTIES • Physical form/appearance: Firm, bulky material, more or less elastic. • Density: 10-600 kg/m³ • Solubility in water: Insoluble • Smell: No or mild smell • Flash ignition point: Between 315ºc to 370ºc • Decomposition temperature: Above 180ºc • Thermal energy: 28,000 KJ/kg • Stability and reactivity: The product is stable at temperatures between -40c and +12ºc • Auto-ignition point: Between 370ºc to 427ºc (ASTM D 1929) • TEST DETAILS Complies with Part B and Part E UK Building Regulations • Integrity isolation Trada FR 1739 240 min. 46 min BTC 10891F 88 min N/A
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| ALL PRICES ARE INCL. 25% DANISH VAT/TAX | ||||||
| AV-Connection A/S • VAT no.: DK27907547 • Kaervej 71-73 • 6400 Soenderborg • Denmark • Tel. +45 7442 1078 • E-mail: [email protected] | ||||||
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