Big Window (3 units) Installation steps

[firapara]

Hi guys,

I have a big 3 unit Window to install (see picture)
It comes with one big sill, i.e. three window units but the sill is one long unit.

Normally, when I install a small window, I silicone and screw in the sill to the window before the installation. In this case it is a bit different. Can you please let me know what are the general steps on installing the units? Do I first screw the sill in to the wall then install the the units one by one on top of it? Or any other approach?

Thanks,

 

[freddiemercurystwin]

Why have you started a new thread for this?

 

[crank39]

Assuming the cill will be in one piece and not 3 separate cills then place the cill in situ first, doesn't need be fixed anywhere at this stage, run a bead of silicone along it making sure you create a dam at each end with silicone just to stop water travelling off the end of the cill and poss wetting your internal plaster reveals then place the windows on the cill and screw down through the frame into the cill