Re: Re: Irish say no to PVC windows
I checked out the Wynn’s windows myself too since Monty mentioned them….was reasonably impressed, although as with all double-glazed multi-pane sashes, the glazing bars skim over the surface of the glass, resulting in a slightly fake look. But at least they have copied the V-shaped sectional profile on the outside, formed by the putty in a traditional sash.
Its certainly possible to get double-glazed multi-pane sashes with individual insulated glass units but its not recommended. The problem is that such units require very â€˜heavyâ€™ glazing bars to support the weight of glass and to meet modern performance standards for wind-loading â€“ the frame is not allowed to deflect more then 1/175 of its length. Generally the resultant glazing bar is so wide it looks shite. Anything that doesnâ€™t look shite almost certainly hasnâ€™t been performance tested. Single glazing has less stringent requirements and so facilitates thinner glazing bars. A minefield indeed.
At least the Wynns windows have dispensed with the superfluous spacer bar between the glazing bars. This is only noticeable when viewed at a very acute angle.
Is mise le meas,