energy efficiency in houses Flashcards
1
Q
different types of insulation (list)
A
cavity wall insulation double glazing lost insulation carpets curtains draft excluders jacket around hot water tank(maybe)
2
Q
when looking at a thermogram, what do the red parts mean?
A
they are the hottest, and the most energy is lost from these parts
3
Q
energy is transferred from warm homes to the outside by?
A
conduction through the walls floor roof and windows
radiation from the walls roof and windows
4
Q
double glazing is? and how does it reduce energy transfer?
A
two panes of glass
by conduction
5
Q
how does cavity wall insulation work? (same theory as loft insulation)
A
by blowing insulating material between the outside wall and the inside wall to reduce conduction
