Save Energy by Enclosing Your Terrace with Glass: Real Data
Few home improvements combine increased living space with energy savings. A well-executed glass enclosure achieves both. Here’s how and how much.
The controlled greenhouse effect
In winter, the glass of an enclosure acts as thermal insulation: solar radiation heats the interior space and the glass retains that heat, reducing heating demand in adjacent rooms.
In summer, if you choose solar control (Low-E) glass, the enclosure blocks up to 70% of infrared radiation, keeping the terrace and home cooler.
Savings data
| Glass type | Heating savings | Cooling savings |
|---|---|---|
| Simple tempered | 10-15% | 5-10% |
| Low-E | 20-30% | 15-25% |
| Solar control | 15-20% | 30-40% |
Practical example: A home in the Canary Islands with a 15 m² enclosed terrace using solar control glass can save between €150 and €300 per year on air conditioning.
Additional benefits
- Acoustic insulation: reduces outside noise by up to 35 dB
- UV protection: prevents fading of furniture and floors
- Expanded usable space: gain an extra room without major construction
- Property value increase: a quality enclosure raises property value by 5-10%
Which glass to choose for maximum efficiency?
In the Canary Islands, where the sun is generous year-round, we recommend solar control glass for the roof (blocks heat from above) and Low-E for the sides (balances interior temperature).
Request a free consultation with Pergolas Canarias and we’ll advise you on the best solution for your terrace.