How it works
Thermal insulation adds a high-resistance layer that slows heat moving from the roof into the rooms. Where summer temperatures exceed 45 °C, it is one of the fastest-payback investments in a building.
Systems
- Spray polyurethane foam, highest performance, also waterproofs.
- EPS/XPS boards, economical, installed under tiles.
- Rock wool, walls and ceilings, adds acoustic and fire performance.
- Reflective coatings, lower roof surface temperature on small roofs.
Expected payback
| Indicator | Typical range |
|---|---|
| Cooling reduction | 25% – 40% |
| Payback | 2 – 4 years |
| Service life | 15 – 25 years |
Figures are indicative and depend on building size, operating hours, system and thickness.
FAQ
Can existing buildings be insulated?
Yes, foam and reflective coatings are applied directly to the existing roof after preparation.
When will I see savings?
From the first summer month after installation.
