High performance doors require a quality frame, high performance glass and long-lasting weather-resistant seals. Glass accounts for up to 90% of thermal performance and efficiency. High performance doors can easily provide thermal improvements of 60% over conventional systems enhancing the comfort and efficiency of your home and rivaling the expensive alternatives such as thermal break aluminium, timber and PVC frames. Renma utilises Capral door framing and systems to deliver high technical performance with style and class.