45mm Top 85mm bottom track Bi-Fold Door 85mm uPVC Bi-Fold Door
Much like bi-fold windows, bi-fold doors, (also called folding doors), offer maximum opening space, with up to 95% of the area able to open. Bi-fold doors have several sections, which fold in pairs and slide along a track to neatly stack against the wall. Our bi-fold doors feature a track which is flush with the ground, creating a seamless flow from the inside to the outside.
Advantages of bi-fold doors – close to complete opening area – adjustable – Can be used for very large walls
uPVC/aluminium 2mm sliding door double glazed, Clear Glass or colonial design, U-value (rate of heat conduction) 1.9W/m2-K from, 4. R-value (heat loss) 0.48, SHGC-0.55, Rw (CTR) 35 -1; -3, Glass 5mm+9A+5mm, argon gas in the gap, with toughed glass and thermal break.