Solid Wall Insulation
If you live in a home with solid walls heat is escaping through the walls which is costing you money.
Insulating the walls will dramatically prevent heat loss in the winter (and also reduce heat gain in summer) leading to greater warmth, increased comfort and lower fuel bills.
Solid Walls can be insulated either internally or externally
- External Insulation comprises of an insulation layer fixed to the existing wall and a protective render or cladding finish.
- Internal Insulation typically consists of either dry lining in the form of:-
- flexible thermal linings available in 1 metre by 12.5 metre rolls (also known as Sempatap or Magic Wallpaper)
- laminated insulating plasterboard (known as thermal board)
Installation
- External wall insulation
It is preferable to employ an approved installer in order to ensure professional work especially in the detailing (finishing around external services, pipework, windows, etc.). As the insulation is applied to the outside of external walls, there is less disturbance to the household in the process.
- Internal wall insulation
Can be done either using a qualified installer or as a DIY job, can be done room by room, however, there will be distruption to the chosen rooms and redecoration will be needed once the insulation work is completed.
Costs
- External solid wall insulation
The cost of insulated render/cladding is around £45 to £65 per square metre, depending on the selected product, installer, the condition of the exterior surface and its complexity. Since the whole house needs to be insulated using this method, minimum costs start around £2000. A typical semi-detached house with some 80 m2 of walls is likely to cost between £3,500 and £5,500.
- Internal solid wall insulation
To insulate a whole 3-bedroom semi-detached house would cost approximately £650 if done by a professional or £450 if done as a DIY job. Prices vary by product and installer.
Payback
- External solid wall insulation
Typical annual savings are between £85 and £120 on the fuel bills. Payback period is 12+ years with an installation life of 25-30 years.
- Internal solid wall insulation
Typical annual savings are between £75 and £100 on the fuel bills. Payback period is 3 years for DIY installations and 6-7 years for professional installations
Financial help may be available if you're planning to make energy saving improvements to your home
Price and payback figures are from the Energy Saving Trust. You can contact them by either visiting their webpage
http://www.energysavingtrust.org.uk/ or by calling 0800 512 012
For more information on solid wall insulation or to find out if there is any financial assistance in your area or to apply, either
Telephone 0115 947 2207
