Cooler roofs will prevail: colours and coatings to help beat the heat

Even before adding solar panels, your roof can help you keep cool and lower your energy billsChange by degrees offers life hacks and sustainable living tips each Saturday to help reduce your household’s carbon footprintGot a question or tip for reducing household emissions? Email us at changebydegrees@theguardian.comWith an historic El Niño under way in the Pacific, Australia could face record temperatures this summer. For those in hot homes, reflective roof coatings can be a cost-e