ᐅ Patio doors/windows with no central mullion – with or without a low-profile threshold
Created on: 26 Apr 2017 13:08
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Hendrik007
Hello everyone,
our window installer offers us the choice of having the patio doors or floor-to-ceiling windows (with mullion) either with or without a low threshold.
The threshold is only 2cm (1 inch) high and costs 80 euros more per window unit. What bothers me, however, is his comment: "It is worth mentioning that with a mullion design, at the point where the two sashes meet, during heavy rain and wind blowing against the window, some water may be pushed into the room. This design is essentially like having two patio doors side by side, whereas previously only one sash was planned."
I don’t quite understand the last sentence, but water getting inside would be a problem, right?
What are your thoughts on this?
our window installer offers us the choice of having the patio doors or floor-to-ceiling windows (with mullion) either with or without a low threshold.
The threshold is only 2cm (1 inch) high and costs 80 euros more per window unit. What bothers me, however, is his comment: "It is worth mentioning that with a mullion design, at the point where the two sashes meet, during heavy rain and wind blowing against the window, some water may be pushed into the room. This design is essentially like having two patio doors side by side, whereas previously only one sash was planned."
I don’t quite understand the last sentence, but water getting inside would be a problem, right?
What are your thoughts on this?
T
toxicmolotof26 Apr 2017 20:16Yes, we do.
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Bieber081526 Apr 2017 21:09Interesting! It was the same here at first. The construction manager from the developer didn’t inform the civil engineer that we would have a drainage channel, and no planning documents were prepared. That’s why the civil engineer built the substructure without the channel and then improvised it afterward using the path of least resistance.
We were shocked but could not prove an actual defect. After some concerns, we arranged for the channel to be rebuilt into the reveal at our own expense.
It has been watertight for about 11 months now despite being exposed on the weather side. By the way, all involved experts agreed that the channel was unnecessary. I overruled them – the customer is always right and pays for it.
Are your doors properly adjusted? Have you experienced worse weather conditions than we have so far this year? Or does it actually matter where the drainage channel is placed? You have about 15cm (6 inches) of flat surface in front of the channel where water can accumulate.
We were shocked but could not prove an actual defect. After some concerns, we arranged for the channel to be rebuilt into the reveal at our own expense.
It has been watertight for about 11 months now despite being exposed on the weather side. By the way, all involved experts agreed that the channel was unnecessary. I overruled them – the customer is always right and pays for it.
Are your doors properly adjusted? Have you experienced worse weather conditions than we have so far this year? Or does it actually matter where the drainage channel is placed? You have about 15cm (6 inches) of flat surface in front of the channel where water can accumulate.
T
toxicmolotof26 Apr 2017 22:20We don’t have an eave, and the wind did its part. I can live with it once every two years. About 30km (18.6 miles) away, car windows were broken. So that was really severe weather.
