Learn It: House Insulation
- Attic insulation:
Up to 20% of heat lost from a home is lost through the roof. Effective attic insulation can pay for itself within two to three years.
- Lagging jacket:
A lagging jacket on the hot water cylinder will keep water hotter for longer and pay for itself within a few months.
- Double glazing:
For a given area of wall or window, a window will allow up to eight times more heat to escape.
- Wall insulation:
As much as one quarter of the heat lost from a house can be lost through the walls. Properly insulating walls can reduce this by two-thirds.
- Draught excluders:
Badly fitting windows and external doors can account for more than one-sixth of heat loss.
- Ground floor insulation:
Heat loss to the ground depends on several factors, including floor type, whether house is one or two-storey, nature of soil and terraced or detached construction.
Next: Learn It -Conduction
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