Ceiling Insulation done right: A Guide to Climatic Zones and Required Roofing R-Values

Ceiling Insulation done right: Learn more about required roofing R-Values. In an uninsulated building, the roof is one of the largest pathways for unwanted heat gain in summer and heat loss in winter, making roof insulation one of the most effective energy-efficiency upgrades. Since the adoption of the updated SANS 10400-XA energy efficiency regulations in…