Passive house and low energy buildings utilise free energy from the sun to heat in the winter but unless that energy is controlled overheating is the consequence even on sunny winter days. A dynamic control solution is essential follow the link for passivhaus advice.

Sustainable building products - how many can save as much as 60 times the carbon that they generate in their lifecycle? Dynamic external shading can follow the link for sustainability advice.

PV powered rooflight shading saves more energy than it creates Up to 60 times the carbon produced in its lifecycle a genuinely sustainable solution. Follow the link for free energy advice.

Passive house overheating solutions:

• Saves 60 times the carbon it creates
• PV powered rooflight shading
• Sustainable solutions to shading problems