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Published byGeorgiana Pearson Modified over 9 years ago
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Owen Gallagher Technical Sales Manager “Promoting Traditional Build”
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Concrete Blocks Topics to cover Supply Thermal Bridging – CBA Details Sustainability …then lunch
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The Market Govt. Initiatives Response
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Capacity Quicker response ? Post recession Output of the industry How can manufacturers respond? Re-open moth balled plants Extended Working Hours Speed-up curing regimes Build winter stock levels
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The Market Its not rocket science!! It’s a concrete block
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The Market
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New Output
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Concrete Blocks Topics to cover Supply Thermal Bridging – CBA Details Sustainability
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Concrete Blocks Are greener than you may think Cements Content only 9% * 1 19% of above are ‘alternative’cement’s Aggregates are often ‘surplus’ dust from quarries Blocks can be 100% recycled aggregate * 1 WRAP Resource Efficiency Action Plan
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Concrete Blocks Embodied Energy 6Kg CO 2 /t blocks * 2 That is 7 times less than softwood That is 30 times less than steel That is 40 times less than plastic * 2 Uni. Bath Inventory of Embodied Energy 2008 (Excludes Calorific Value of wood) Are greener than you may think
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Concrete Blocks Manufacturing waste is re-used (WRAP) Energy used in manufacture only 21kW.hrs/t Less than 2% wastage on site Delivery average 60 miles from 100 plants across the UK Are greener than you may think CO 2 Footprint does not need to measured from the Port of entry
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Localism Local Supply Local Plant Local Materials Local Labour
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So why Concrete Blocks? Off the shelf Ease of use BRE Green Guide A / A+ Recyclable on site to granular Traditional Known Practice Building Reg Compliant Competitive build cost Made locally
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Concrete Blocks Topics to cover Supply Thermal Bridging – CBA Details Sustainability
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Thermal Bridging What is it?
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Thermal Bridging
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Is it significant? Who does it?
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Window and door jambs Window and door lintels Window Sills Party wall junction Eave / wall junction Corner Thermal Bridging
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Gable Wall Junction Ground Floor / Wall Ground Floor / Party wall Intermediate Floor / wall Ceiling / Party Wall Thermal Bridging
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1 Calculating the Y value Total Building Envelope Length of Junction Psi Value (Ψ) Thermal Bridging
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SAP 2009 Table K 1 Thermal Bridging
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Part L1a Analysis End & Mid Unit
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Y = 0.053 Y = 0.0788 / 0.0722 Part L1a Analysis
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APA www.constructivedetails.co.uk CBA www.cba-blocks.org.uk Register to receive details Any Questions?
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