New Composite door low 15m threshold question

[Sneezin]

Hi I am considering a composite door from a UK company (GSRcompositedoors)

It has 3 options, 50mm and 70mm and an 15mm Aluminium threshold, these are the clearance height plastic bits at the bottom of the doors and part of the upvc frame itself.

See this picture:

The question Is a 50-70mm threshold is higher rated to stop rain water, wind and insects in, but can an low 15mm threshold Aluminium still be good enough to block rain water, wind and insects from coming in?

I have emailed several door UK companies and they were not saying yes or no, just that 50 or 70mm would be better "rated", standard sales person response I guess.

Does anyone have a low 15mm threshold and does it block rain, wind and insects? and is it possible for some picture of how it looks up close with door open.

Thanks.

 

[freddiemercurystwin]

If you fit a 15mm profile where the cill is raised (like the one in the photo) you will be fine, if the cill was flush with the paving outside then really you would want to fit a channel drain alongside the threshold so also OK.

 

[Sneezin]

If you fit a 15mm profile where the cill is raised (like the one in the photo) you will be fine, if the cill was flush with the paving outside then really you would want to fit a channel drain alongside the threshold so also OK.

thanks for the reply, I think to avoid any type of issue we are going for the 50mm pvc threshold option which has much better thermal performance.

In the future we can get a better higher door step too make it easier to get in and out it, was just more about the stepping for a pensioner with lower mobility.