Cooling can account for more than half of a building's summer energy bill. The good news: well-planned thermal insulation is the single most cost-effective way to bring those costs down. Below are five field-tested tips our engineers apply on every project.
1. Start at the roof
Roofs absorb the most solar heat of any surface. A high-performance roof insulation layer — combined with a reflective finish — can cut heat gain dramatically and reduce the load on your air-conditioning system.
2. Don't ignore the walls
External and cavity wall insulation stabilises indoor temperatures and prevents the "oven effect" on sun-facing facades. Continuous insulation also minimises thermal bridging, where heat sneaks through structural elements.
3. Insulate HVAC ducts and pipes
Uninsulated ducts lose cooled air before it reaches the room. Insulating ductwork and chilled-water pipes improves efficiency and prevents condensation that can damage finishes.
4. Seal air leaks first
Insulation works best in an airtight envelope. Sealing gaps around windows, doors and service penetrations stops conditioned air escaping — a low-cost step with a fast payback.
5. Match the material to the climate
There is no one-size-fits-all product. The right R-value, thickness and material depend on your climate zone, building use and budget. A quick assessment ensures you invest where it matters most.
Applied together, these measures routinely deliver up to 40% lower cooling costs while improving comfort. Our team can audit your building and recommend the optimal thermal strategy.
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