4 ms·
Don't most commercial buildings use white roofs? I've not spent a lot of time on commercial roofs, but the ones I've been on were always white.
by dpark 9y ago
Don't most commercial buildings use white roofs? I've not spent a lot of time on commercial roofs, but the ones I've been on were always white.
- pilom 9y agoIn colder climates where heating is as much an expense as cooling, no. Most just put black tar up there because it is cheap. That said, when you need to pay to heat in summer and pay to cool in winter, the 3% savings in cooling doesn't help you when you also increase your heating bill in the winter by 3%.