W4800mm x H2100mm Visofold 1000 Black Aluminium Compliant Bifold - 4 Section Modern rooflights 5mm fibre cement boards—fire-resistant

5mm fibre cement boards—fire-resistant

Brand: GRP Composite Doors

Q: What does U Value mean

particularly when 'toe and heeling' the 28mm panel

making the frames appear slimmer and more refined

W4800mm x H2100mm Visofold 1000 Black Aluminium Compliant Bifold - 4 Section Modern rooflights 5mm fibre cement boards—fire-resistantSmart Compliant Visofold 1000 The Smart Visofold 1000 Compliant Bifold Door is designed to meet the highest building regulation standards, featuring an upgraded Part L energy efficiency rating with a U value of 1. 6 W mK to reduce heat loss and improve thermal performance. It also incorporates a flush sash vent to fully comply with Part F ventilation requirements, ensuring effective airflow without compromising the doors sleek appearance. Security is