So when I moved to Montreal in 2016 I bought a 2 floors condo built before the new law was passed (2005 I believe). Above the second floor it had gravel roof I

So when I moved to Montreal in 2016 I bought a 2 floors condo built before the new law was passed (2005 I believe). Above the second floor it had gravel roof I think, I’m not sure what it was but it was very hot in the summer (not so much on the first floor). After replacing it with elastomer, temperature definitely went down a little bit on the thermostat but I personally don’t feel much of a difference. This could be because, in the morning, the sun is facing the large windows which warms the inside even more. Anecdotal, of course. Regardless, roof had to be changed. But the AC is definitely ON when it’s 25C and above regardless of the roof type.