Thread: aluminium windows & their flashing

The flashing is laid under the brick sill on the outside skin. A couple of weep holes wouldn't go astray as well.

If you are referring to the rubber flashing at the bottom of the window ,Mojoe, then this must finish sitting on top of the render so that the water from the glass will finish running off the sill. If the window is in a double storey section of the house then flashing must be installed across the cavity with weep holes in the outside skin and the flashing should extend a bit on either side of the window .

Cheers

hi there, peter 36, thanks for the info, yes i figured the rubber seal sits ontop of the render, but the plastic one i wasnt shure of, its only a single story, double brick, im sorry if im replying to you in the wrong section, cos this thing about sending /reciving messages is fairly new to me. Do you think i would have to remove the row of bricks which is the sill, lay the plastic flashing, and then re-lay the sill ontop of the flashing? or if i cut the flashing out alltogether what would be the worst that could happen?

cheers moejoe

Originally Posted by billyt

The flashing is laid under the brick sill on the outside skin. A couple of weep holes wouldn't go astray as well.

thanks billyt ,i know im probebly stating the obvious and it may sound like a dumb question, but dose that mean i have to remove the existing sill to lay the flashing ,

I,m trying to get the correct picture. Does your window have in addition to the rubber flashing, a second plastic flashing which is attached to the bottom of the reveal/window frame ? If this is the case then I would suggest that you could remove the plastic flashing from the window.The plastic flashing is there to capture any water which may enter the cavity between the side of the window and the aluminium frame of the window which is important if the window is installed in a double storey . In your case the render will fill any gaps between the brick and the window , but if you are concerned you could place a bead of sealant there before you render.In Melbourne our Al, windows only come with the rubber flashing and any other flashings which might be required are installed separately.
Cheers

Mojoe,
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Thanks for that peter 36, i think your right on the mark, what you've suggested has made the most sense so far, im gunna go with that, thaks mate,,,