1. Improving Energy Efficiency in Traditional Buildings Moses Jenkins Technical Conservation Group
2. Improving energy efficiency in traditional buildings <ul><li>Ventilation </li></ul><ul><li>Building elements: tests and improvements </li></ul><ul><ul><li>Windows </li></ul></ul><ul><ul><li>Walls </li></ul></ul><ul><ul><li>Roofs </li></ul></ul><ul><ul><li>floors </li></ul></ul>
3. Vapour movement in a traditionally built home. We can improve efficiency, but must be careful not to compromise this dynamic.
4. Traditional passive systems
5. This Edinburgh house, built in 1840, featured a passive vent system Air was heated in a boiler in the basement, and routed up through the house, via cornices, ducts and floorboards.
6. Vents at ground level
7. Hidden vents in hood moulding
8. If we get it wrong..
9. 25% 35% 10% 20% 10%
11. Baseline measurements
12. Air leakage and improvements
13. Draft Stripping
14. Improvements tested in lab at Glasgow Caledonian
15. Existing options – shutters & blinds – gave significant improvements
16. Improved shutters – U value of 1.8
17. shutters, curtains and blinds – reduce heat loss by 62%
18. Secondary glazing
19. Secondary glazing : U Value 1.7
20. new sealed units within existing sashes
21. vacuum DG panes – made in Japan
23. Energy efficient but looks and performs well
24. Thermal properties of Mass Walls
25. Monitoring equipment
26. Castle Fraser – U Value 0.8W/m 2 K for mass walls
27. Lab testing as well CGU Test Chamber 550mm Locharbriggs Calculated U Value 1.4 W/m2K Measured U Value 1.1 W/m2K
28. Scottish winner 2009 Cottage on Skye, U Value 0.6
29. So what to do with a mass wall? Intervene here? Or here?
30. Insulation behind lath and plaster
31. bonded polystyrene bead U value improvement 68%
32. Calcium silicate board
33. Aerogel blanket
34. Aerogel with plaster finish
35. Interior of tenement, Glasgow External wall U-value 1.00
36. breathable insulated board U value improvement 65%
37. cellulose fibre U value improvement 71%
38. Hemp board U value improvement 78%
39. Wood wool with clay board applied as finishing
40. Clay board ready for application of clay plaster
41. External Insulation Maybe not here…
42. But what about here?
43. Wood fibre insulation, Glasgow
44. With 2 coat render system beibng applied
45. Negative visual impact of external insulation
46. Is it worth lifting this?
47. Sheep’s wool pinned to under floor joists
48. Hemp board between joists held in place with timber runners
49. Stone floors – can this be improved?
50. hemp / lime-concrete insulated floor beneath stone flags
51. Concrete floors can be lifted and insulated lime concrete floor laid in its place
52. Lime concrete layer being mixed, laid and flags laid on top