So when we built we didn't have much choice and could only get R2.5 in ceiling and 1.5 in walls.
Downstairs is quite nice but upstairs still gets quite hot (and cold in winter).
Had an insulation guy come out and recommended not going above R4 in Brisbane (diminishing returns).
Have 2 whirly birds.
What should I look at next? Replacing windows, window shading, window tinting?
Thoughts anyone?