EXTERNAL WALL INSULATION Tim Acheson Green Renovation Holistic - PowerPoint PPT Presentation

EXTERNAL WALL INSULATION Tim Acheson

Green Renovation • Holistic approach • Insulation, insulation, insulation • Having a plan

Typical 1930’s housing stock, solid wall construction

Different insulation solutions to suit the situation

Argon filled, low-e double glazing more efficient than these walls. Typical U-values 0 1 2 3 4 5 6 Singel glazed, solid metal frame Single glazed, wood frame Double glazed, metal frame Double glazed, metal frame, thermal break Double glazed, wood frame Double glazed, wood frame, argon, low-e glass

Aluminium framed windows present a more serious cold bridging problem.

Take advantage of disrepair to add insulation Practicalities of installing internal insulation

Insulation, Insulation, Insulation

Time for an efficient boiler.

Drafts and ventilation are a major source of heat loss. Insulate under suspended floors

Extend sills and waste pipes when insulating externally

Importance of materials • Local • Natural • Low embodied carbon • Breathability • Cost • Performance • Site specific restrictions

Incorporate as part of larger project

Thanks for listening and good luck with your project