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edenhall.co.uk<br />
7.6 Environmental Performance<br />
Bricks produced by <strong>Edenhall</strong> have excellent “Green” credentials as summarised below.<br />
<strong>Edenhall</strong> bricks:<br />
• are a net absorber of CO 2<br />
• are 100% recyclable.<br />
• utilise aggregates which may be otherwise classed as waste products from primary clean graded aggregate.<br />
• contain raw materials that are sourced locally using home based cements.<br />
• contain supplementary/replacement cementitious materials.<br />
• create minimal waste during production.<br />
• require no heat to cure the product hence CO 2<br />
emissions are very low.<br />
• have packaging which is responsibly sourced and is recyclable.<br />
• ensure minimum transport distances to sites by a wide spread of factory locations.<br />
• have a BRE A+ rating for built walls.<br />
• have an Embodied Carbon footprint which is significantly less than clay bricks.<br />
Further information on Environmental Characteristics is detailed in Brick <strong>Technical</strong> Bulletin BTB 3.<br />
7.7 Fire Resistance<br />
Concrete masonry is a non-combustible material possessing excellent fire resisting properties. Bricks are produced<br />
from Class 1 aggregates and are classed as non-combustible with a zero spread of flame. Typical resistance values<br />
(in hours) are as follows:<br />
• 100mm, single leaf load bearing wall with finish = 3 hours.<br />
• 100mm, non load bearing single leaf wall with finish = 3 hours.<br />
• 100mm, load bearing cavity wall = 6 hours<br />
• 100mm, non load bearing cavity wall = 6 hours.<br />
Further information on Fire Resistance is detailed in Brick <strong>Technical</strong> Bulletin BTB 13.<br />
7.8 Sound Insulation<br />
<strong>Edenhall</strong> bricks offer excellent sound insulating properties which can be particularly important in preventing flanking<br />
wall transmission or in lightweight structures.<br />
The average built wall weights and their Sound Reduction Indices for lightweight plastered single leaf and cavity walls<br />
are as follows:<br />
• Solid dense brick, 100mm thick wall @ 214kg/m 2 = 46dB<br />
• Solid dense brick, 215mm thick wall @ 458kg/m 2 = 50dB<br />
Further information on Sound Insulation is detailed in Brick <strong>Technical</strong> Bulletin BTB 14.<br />
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