Does the colour or type of roof affect the thickness of insulation I should get?

Does the colour or type of roof affect the thickness of insulation I should get?

Yes, the darker the roof the higher the recommended minimum R-Value 


Climate Zone

1

2

3

4

5

6

7

8

Ceiling insulation for homes with very light coloured roofs

R4.1

R4.1

R4.1

R4.1

R4.1

R4.1

R4.1

R6.3

Ceiling insulation for homes with light coloured roofs

R4.6

R4.6

R4.6

R4.6

R4.6

R4.6

R4.6

R6.3

Ceiling insulation for homes with dark coloured roofs

R5.1

R5.1

R5.1

R5.1

R5.1

R5.1

R5.1

R6.3


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