Sunlight on Your Terms: Designing a Three Counties Extension That Stays Comfortable in July
Glass sells drawings, but it can make a finished room unusable in high summer. This guide sets out how to balance daylight and winter warmth against solar gain in Three Counties extensions, with plain-English notes on Approved Document O, glazing ratios, shading and ventilation — plus practical remedies for existing rear extensions and loft conversions that have already turned into hothouses.