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Lomond Homes

Lomond Timber Frame - Affordable Housing for the Fife Housing Alliance and Kingdom Housing Association - GREEN APPLE AWARD WINNER

Eleven low cost homes were built under a design & build contract. Two were constructed using dynamic insulation, the Lomond Dynamic Breathing Wall, and the other nine with conventional insulation.
A whole house monitoring programme was undertaken in 2010 to compare the differences, including a weather station to take account of the different weather conditions, with the following headline results:

* Saving in Space Heating Gas Consumption = 38%
* Reduction in CO2 emissions = 34% (0.546 tonnes CO2 / annum)
* Reduced Condensation Risk = Healthier Indoor Air Quality
* Dynamic ‘U’ Value = 0.102 W/m2K
* Reduced Heat Loss = Thermo graphic Survey Report from IRT Surveys
* Thin Wall Construction = 145mm Studs

In 2009, prior to construction, a SAP based assessment forecast using Dynamic Insulation would result in a 27% reduction in space heating gas consumption compared to a dwelling built to 2005 regulations. Monitoring proved that the dynamically insulated dwelling reduced the space heating gas consumption by 38%. This equated to a composite wall U-value of 0.102W/m2.K. This increased thermal performance reflected the boost provided by the capture of solar gain in the ventilation airflow through the building fabric.

The improved energy efficiency of the dynamically insulated dwelling was also proven by independent IR thermographic analysis (below). The standard insulated properties display warmer green and yellow colours whereas the houses with dynamic insulation display cooler purple and blue colours indicating a cooler surface temperature and therefore a lower level of heat loss.

Additionally, the reduction in relative humidity over the conventional insulation produced a consequential reduction in condensation risk. Predetermined ventilation rates (that were out with the control of the occupants) with the resultant improvement in air quality were a significant benefit for the Housing Association.

Bill Banks, Depute Chief Executive with Kingdom Housing Association, said:
“Our objectives for the affordable housing programme include sustainability targets which will improve energy efficiency and address issues associated with fuel affordability and it has been interesting to monitor the results of the new technology, which can hopefully be rolled out to other projects in the future.”

Andrew Saunders, Director with Ore Valley Housing Association, who now own and manage the houses, said: “the potential of this new type of insulation is very exciting, the benefits to tenants will be significant.”

Mr Alan Dall, Occupier, stated, “It’s an extremely warm house.... When I come in from being out for the day, the house warms up very quickly.”

Dr Andrew Peacock, Energyflo Technical Director; “Lomond Timber Frame have been an excellent partner to engage with. Lomond are a leading edge player at the forefront of Timber Frame manufacturing within the UK, offering sustainable innovative solutions to their client base in the Private and Social Housing Sectors”

Features and Specification:

Lomond’s Dynamic Breathing Wall System is based on modern methods of construction and provides a cost effective low carbon, low energy solution to the housing industry (and other sectors of the construction industry) and is capable of meeting and exceeding 2016 government targets and beyond using familiar building methods without any change to current wall thickness or cost. Produced under modern factory conditions to ensure maximum benefit from off-site manufacture, the system has been developed to integrate with modern timber frame construction so it can be readily adopted by industry.

Unlike many current low carbon solutions for housing, costs are low; it is available for production now and can immediately help address current and future energy and carbon emission targets and the pressing issue of fuel poverty.

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