Heating and Insulating Buildings Flashcards
0
Q
Two advantages of using solar panels:
A
Solar energy is renewable
Electricity is not used - reduces the use of fossil fuels.
1
Q
What energy do solar panels use to heat water?
A
Solar energy
2
Q
Name three ways of insulating houses.
A
Cavity wall insulation
Double glazed windows
Loft insulation
3
Q
What is a U-value?
A
It is the energy per second that passes through 1 metre squared of the material when the temperature difference is 1 degrees celcius.
The lower the U-value the better the insulation.
