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Recognising problems

These are most  of the problems to be looked out

for when inspecting your windows.


■ Any evidence of structural movement which

is deforming the opening and damaging

the window – but note that some signs of

movement may be so old that they have

long since been stabilised or repaired,

leaving the window in working order: its

deformation expresses its age and character


■ Evidence that the pointing between the

frame and the wall opening is cracked,

loose, or missing, allowing moisture and

draughts to penetrate around the sash-box

or window frame


■ Sashes that do not move properly, or at all.

This may be due to:


■ over-painting of the joinery


■ stop beads that have been fitted

too tightly


■ pulley wheels that have seized up

because of over-painting or lack of

lubrication


■ broken sash cords


■ swelling due to water absorption


■ inadequate lubrication between the sash

and the pulley linings


■ thicker and heavier replacement glass


■ failure of hinges on casement sashes


■ Evidence of water absorption, indicating

possible wood decay (wet rot). The signs to

look for are:


■ interior paint failure caused by

condensation


■ exterior paint failure


■ opening of the frame joints


■ degradation of the wood surfaces (where

paint has flaked off) or depressions in

the wood surface


■ cracked, loose, or missing putty


■ standing water, especially on the cills.


■ Faults with flashings or water shedding,

features associated with windows

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