Air leak under new glass sliders
We just had new glass sliding doors installed a few months ago (there used to be a very old swinging door in that location, so the hole was enlarged and a new header was put in).
Now, I can feel a lot of cold air leaking in from the bottom. There is no moulding between the laminate floor and the door yet – I am in the process of putting quarter round moulding there, but there is a kick-lock so its taking me a long time to get the cut-outs right to fit around the kick lock.
My plan is to glue a strip of something very thin (felt?) under the moulding and then glue (liquid nails?) the quarter round moulding to the very bottom part of the door (i.e., not to the floor). I can’t nail it to the bottom of the door as its metal, not wood. Any thoughts on if this will stop the air leak? Any other things I can try?
(When the door was installed, I had the installers put spray foam between the door frame and the wall instead of using the pink fiberglass stuff.)
Thanks for any help.
EDIT – there is an uninsulated crawlspace below, about 3′ tall with a cement floor; no basement. We are NYC area.
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