Design Buy Build Issue 35 2018 | Page 13

The PH15 System is a part offsite solution developed specifically for Passivhaus standard levels of energy efficiency. The PH15 frame elements are all pre-cut offsite and individually coded - like a meccano set, rather than fully panellised. This is both an economic solution and avoids the need for heavy lifting equipment. The system can be delivered where there are limited or difficult access conditions. The PH15 shell relies on typical UK carpentry skills only, supported by onsite training and a technical help line. Lime Green Products also manufacture a range of natural lime renders and insulation solutions for retrofit projects where moisture management is particularly critical. Their Warmshell internal insulation system addresses the common problems of damp and condensation, whilst also addressing heat loss and contributing to a healthier indoor environment. PASSIVHAUS STATISTICS: TFA 371m², Form Factor 1.8, with U-values of roof 0.108 W/ m2K, walls 0.105 W/m2K, floor 0.106 W/m2K. Heating load 7.9W/m2. Predicted Heating demand 9.1 kWh/m²a. Airtightness test results: 0.34, 0.39 and 0.4 ach@50Pa. For further information on the Warmshell insulation and render systems please follow this link www.lime-green.co.uk/warmshell To learn more about the PH15 Timber Frame System visit www.phhomes.co.uk. 13