I have recently had all my balcony doors changed to make them more airtight, and to save energy, (aircon cold air inside), but was dismayed to discover that when it was windy today before and during the rain in Bangkok this afternoon, there is a huge draft through a 1 cm x 1 cm gap in the doors, completely defeating the point of installing new doors. I sent these images to my contractor, who replied that this was normal...

 

On Google I found this "airtight piece":

 

 

which would seem to be exactly the thing I am looking for.

 

Does anyone have experience of aluminium balcony sliding doors? Surely such a large gap is not "normal". In fact the old doors I removed did not have this problem, except for an obvious reason, (that the doors did not have stoppers, allowing them to slide to far, creating a gap and the howl/whoosh/whistle of wind/draft), which is what I seem to have on every one of my 7 doors.

Wouldn't help you at the moment, but any reason you didn't go for UPVC double glazing?

After living here in rented condos for 8 years, I have come to the conclusion that if I buy a condo, I will have to factor in replacing the sliding doors with something similar to what I have seen in US condos.  I suspect that I will be forced to look at “commercial” quality here and I doubt it will be cheap.

13 hours ago, sungod said:

Wouldn't help you at the moment, but any reason you didn't go for UPVC double glazing?

It had to have the same outside appearance to conform with the others in the building; my entire flat has balconies and doors along the outside. I don't think there were any UPVC doors that matched.

You can adjust the wheels so the door is lower*, if it was me I would

just get a bit of plastic and shape it to what you show in the picture

and super glue it to the door. * adjust with screwdriver ,there's a screw

inside one of those holes,do both side.

regards Worgeordie