IN NORTH QUEENSLAND'S HOT, TROPICAL, CLIMATE ... A white roof membrane coating is chosen primarily because it reflects heat, which aims to reduce energy use, increase occupant comfort and prolong the life of the roofing material. In a hot, humid climate, roof colour plays a major role in thermal performance. White roof coatings have high solar reflectance, meaning they reflect most of the sunlight instead of absorbing it. In North Queensland’s tropical climate, roofs can reach extreme temperatures with dark colours, while a white roof stays much cooler on the surface. Lower roof surface temperatures reduce the amount of heat transmitted into the building. Cooler roof surfaces mean lower internal temperatures, especially in buildings with minimal ceiling insulation (eg: older houses or sheds). This improves thermal comfort for occupants without relying heavily on air-conditioning. Lower temperatures reduce thermal expansion and contraction cycles, minimising stress on the waterproof membrane. This can extend the lifespan of the roof coating and reduce maintenance costs. If you’re interested in which type of roof membrane coating is ideal for your roof type, contact us for a free quote. Millenium Roofing has been professionally painting roofs for over 25 years and service Cairns, Port Douglas & Mareeba regions of QLD.
WHY CHOOSE "WHITE" AS A ROOF COATING COLOUR?
