Exterior Door Insulation Video
VIDEO SUMMARY
The new exterior has been hung and it is time to insulate it. The gap between the door jamb and the framing has to be filled. Tim uses fiberglass insulation on the inside of the door and spray foam insulation on the exterior. The spray foam insulation should be one that is flexible. So will prevent the insulation from squeezing the door as the foam expands. If it would squeeze to much, it could affect the operation of the door. Only fill the gap about half way. As the urethane insulation cures, it will fill in the rest of the gap.
Once the spray foam has cured, seal the gap between the door jamb and the sheathing. The sticky flashing tape, used under the door, can be used to seal this gap. Only bring it out about a 1/4" onto the door frame. This will be covered by the trim around the door. This will keep any water from getting behind the door trim and into the house. If the spray foam expanding out past the edging, use a razor knife to cut it flush with the door jamb. You may have to fix the flashing tape if too much foam oozes out.
Now it is time to install the fiberglass insulation on the inside of the door. Rip some fiberglass insulation into strips that are slightly longer then the gap to be filled. Push it into place with a wood shim, but not pack it too tight! If desired, you can tape over the fiberglass filled gap with masking tape to block any additional air from coming in.
Replace the wood trim around the door and your exterior door project is ready for use.
This is the third of three videos relating to Exterior Door Removal, Installation and Insulation. Below are the links to the other videos in this series.
Click here to watch the Exterior Door Removal Video
Click here to watch the Exterior Door Installation Video
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COMMENTS
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Dan 18 Sep 2008, 20:55
Wow - those are great videos - I just finished watching all 3 exterior door
videos and it gave me a few things to think about before I start my
project. Thanks a ton for putting these together !
bonnie austin 03 Oct 2008, 15:22
I just had a new side fibrglass door put on my house. At the very bottom of
the door are 4 rubber strips and supposedly these are to keep out air from
coming in. They are not doing the job. Air is coming in from the outside
right past these weather stripping things. What can I use down there to use
with the along with those 4 strips to keep air out?
Selene 16 Oct 2008, 09:48
A carpenter put some type of white, sticky back
fuzzy strips on the lower part of an inside door edge to keep out drafts. They are not foam. I would love to find this product as I need more and this carpenter will not tell me where he gets them. Thanks.
Jayne 17 Jul 2009, 11:09
I am installing fiberglass unfaced insulation in the attic. The batts do
not stay between the roof rafters and eventually fall. What can I use to
keep the batts between the rafters at the top or high point of the roof?
Robert Baker 09 Apr 2010, 21:07
You play down excessive foam expansion as being more minor than it is. It
annoyingly sticks in varying amounts to places like the wall next to the
door. Then cutting is difficult, time consuming, and often damaging to
whatever it's being cut off from, the wood frame (its visible side where it
should not be) and/or the neighboring wall.
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