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Saturday, September 17, 2011

Eco Houses Under Construction - Event 3

Event 3 – the second visit to the timber frame new build

We were again lucky to have fine weather, and 35 visitors gathered on site to learn more about the insulation strategy for the house, and the reasons for choosing lime render as part of the outer shell.

Architect Mike Siebert (of Ecologic Homes Ltd.) explained how and why a range of insulation materials were used. These included a wood fibre sarking board for the roof, load-bearing polystyrene beneath the entire building and outer walls and blown recycled newspaper in the timber frame walls, plus some extra additions to reduce cold bridging at key locations (see on photo with brickwork). 

Further roof insulation will be added between the rafters as well. Another interesting product used was foamglass in the form of a load-bearing plinth block, which is also highly insulating, to complete the thermal barrier.  

Tony Saunders (of Lime Technology Ltd) and Clinton Parker (the plasterer) talked about the benefits and uses of lime render and lime mortar, including its “self-healing” characteristics. There was also a discussion of various ways to use hempcrete (although not used on this project).

Clinton, who is an experienced plasterer (but using lime render for the first time) explained how he found it very easy to use and apply.

Michael Siebert, architect – Ecologic Homes Ltd 07508 161333
Tony Saunders – Lime Technology  Ltd. 0845 603 1143
Clinton Parker – 07904 084234 (the plasterer who did the lime render work)

The Eco Houses Under Construction project is funded by Climate East Midlands, East Midlands Improvement and Efficiency Partnership and Communities and Local Government with a Growing Climate Friendly Communities grant. It is delivered by the charity Groundwork East Midlands.

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