Re: Re: Irish say no to PVC windows

Home Forums Ireland Irish say no to PVC windows Re: Re: Irish say no to PVC windows


Meanwhile, over at Marino Crescent, we have yet another example of newly installed, appallingly detailed double-glazed sash windows. These have just been fitted in the focal pair of central houses on Dublin’s most important (and really only) Georgian crescent. How appropriate.

Blank, expressionless double-glazing, thick glazing bars, beading instead of putty, broad stiles and rails, Victorian horns, and an overly protruding sash frame. These windows quite simply could not be any worse if they tried.

And yet this is what we get in Ireland even with flagship conservation projects such as this.

The applicant submitted:

The existing PVC windows are inconsistent with the character of the houses. It is our intention to replace these windows with painted up and down sash windows with correct design including moulding, sash and rail detail. They will be in fully working order. This work will be carried out by an approved specialist.

So straight away these windows are inconsistent with the submitted plans, never mind any objective assessment. The planner’s report conditioned that all works should be carried out in accordance with the Department of Environment’s Architectural Heritage Protection Guidelines for Local Authorities. For the sake of clarity, we shall quote but one of many relevant extracts from that document on the detailing of historic windows:

“The recommended specification for sealed double-glazed units makes them too bulky for fitting to historic sashes or casements. International standards recommend that the sealed space between the two panes of glass in the sealed unit should be more than 12mm and preferably about 20mm, which is nearly the full depth of most sash and casement frames. The appearance of the window will be altered by the visible black or silver seals which are part of the double-glazed unit and by the rubber or plastic gaskets or timber beading used to seal the units within the frame (which should be substantial to comply with recommended standards). Seals have a life span of perhaps two decades and, when they fail, the unit must be replaced. In that period it is unlikely that the cost of installation will have been recouped through savings on energy bills.”

This muck is cropping up absolutely everywhere. Even the involvement of Ireland’s preeminent historic buildings consultant as advisor on the project did not stop this happening.

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