Moses Jenkins lectures about ways of improving the energy efficiency of traditionally constructed dwellings.

1. Improving Energy Efficiency in Traditional Buildings Moses Jenkins Technical Conservation Group

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

53. Concrete floor insulation: U-value 0.25 W/m 2 .k

54. Should be 250mm thick or more whatever material used

55. Dealing with coombes

56. Sheep’s wool between joists

57. Insulating between rafters using hemp / wool material

58. Door panels can be insulated to reduce heat loss

59. New insulated door to traditional pattern where original has been lost

61. Should you have any enquiries about this lecture, please do not hesitate to contact us by: Email – [email_address] Phone – 0131 668 8668 Website – www.historic-scotland.gov.uk