Fitting Instructions for PVCu Windows & Doors – Toe and Heeling
It is essential that glass packers are used to support the double glazed units to prevent them from standing in any water that may collect in the frame rebate.
This can cause failure of the seal of the double glazing and will invalidate your guarantee if packers are not used. Packers must not cover the drainage holes in the frame.
Both leaves of the double glazed unit must be supported by the packer, do not allow the packer to support one leaf only as it may “bed” into the sealant and cause failure of the unit.
The objective of “toe & heeling” is to transfer the weight of the glass onto the hinge side of the frame. Correct use of this technique will give trouble free operation once the vents have been set correctly. The vent should be flexed upwards if necessary to allow the insertion of the top packers.
N.B. Adjustment of hardware should not be attempted until the frames and glass has been correctly packed and installed.