insulation Flashcards
1
Q
what does insulation do?
A
reduces the rate of energy transferred by heat
2
Q
how do you prevent energy losses through heating?
A
thick walls made from a material with a low thermal conductivity,
use thermal insulation
3
Q
what is a cavity wall?
A
inner and outer wall with an air gap in between to reduce the amount of energy transferred by conduction
4
Q
what is cavity wall insulation?
A
where the cavity wall air gap is filled with foam to reduce energy transferred by convection
5
Q
why is loft insulation good?
A
loft insulation reduces energy loss by conduction and helps prevent convection currents
