Heating and Insulating Buildings

Task 1

We lose heat through the doors, walls, windows and roof of our homes.

Working with the person next to you, try to think of as many ways as possible that we reduce the rate heat is lost from your home.

Task 2

Your teacher will show you a range of insulation materials that may be used in your home.  What makes each material good at reducing the rate of energy transfer?

Most methods to reduce heat loss in the home rely on one of these facts:

Now watch this video clip which explains why polystyrene is such an effective insulator.

Task 3

This powerpoint presentation explains how the various methods of insulation work, and which mode of heat transfer they reduce or prevent.  Fill in this table as your teacher explains each one.

Task 4

Explain, in your own words:

1. Why foam filled cavity walls are better than unfilled cavity walls.

2. Why double glazing can be made more effective by removing the air from between the panes.

3. Why fibreglass is effective for insulating lofts.

4. How curtains reduce heat loss through a window.