Contractor proposes new draft free retrofit technique
Jan 10 2012 in Uncategorized by bere:architects

1. Existing rafter 2. Existing masonry wall with timber wall plate 3. Airtightness membrane 4. Airtightness tape sealing between airtightness membrane and rafter 5. Insulation above and below airtightness membrane 6. Parge coat to external face of wall 7. Individual rafters lifted with hydraulic jack 8. Airtightness membrane fed between rafter and wall plate [...]
