Langley homeowners are choosing spray foam insulation to improve comfort, cut energy bills, and meet BC Energy Step Code airtightness targets. Before your project begins, it's important to understand spray foam thermal barrier requirements. In most living spaces, foam must be covered with an approved material such as ½-inch drywall, plywood, or a tested coating. Your local building official has the final say, so working with an experienced local installer matters. Western Insulation serves Langley and the Lower Mainland with code-compliant spray foam installation. Read our guide: https://westerninsulation.ca/spray-foam-thermal-barrier-bc/