U-Values Flashcards
1
Q
If you have a high U-value is it good or bad?
A
Bad because more energy is being lost
2
Q
If you have a low u-value is it good or bad?
A
Good because less heat energy is being lost
3
Q
If cavity walls has a U-Value of 2, single glazed Windows have a U-value of 4 and a 50mm roof insulation has a U-value of 2.5 what is the best?
A
Cavity walls because it has the lowest u-values
4
Q
What is a U-Value
A
It’s the rate of heat transfer through a material
