Reflective coatings work, but they aren't magic. We separate what's proven from the commercial promises.
A reflective paint or coating reduces solar absorption at the surface: a real and highly cost-effective effect. But it doesn't replace insulation: it acts on radiation, not conduction. They're complementary.
Phrases like "drops it 10 °C" or "eliminates the heat" have no general backing. The effects depend on the roof, the previous color, orientation and insulation. Serious studies report ranges, not miracles See.
A diagnosis determines exactly which layers your roof needs, without overselling. Gallardía assesses and installs.
Every important claim links to its evidence. Tap to see the source, its context and its limits: DOE Tropical studies Standard. Full bibliography in the evidence library.