Exterior front door (weatherproofing)

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Forum topic by Mark Shultz posted 03-24-2017 12:56 PM 584 views 0 times favorited 3 replies Add to Favorites Watch
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Mark Shultz

117 posts in 2588 days

03-24-2017 12:56 PM

I’ve been planning to make a new exterior front door for my home, to go along with a larger renovation. I have read up on the approaches to making the door, but what I can’t seem to find is much literature or advice on weatherproofing. I know about the aftermarket weatherstripping from companies like Randall, but im more interested in the “integrated” approach, such as with metal interlocking strips that I see on some doors.

Anybody have thoughts or source material to read on weatherproofing a new custom door? And vendors!


3 replies so far

View GR8HUNTER's profile


5099 posts in 911 days

#1 posted 03-24-2017 03:27 PM

View jerryminer's profile


944 posts in 1639 days

#2 posted 03-25-2017 09:27 AM

Metal interlocking weatherstripping (in brass or aluminum) still exists, but isn’t used much any more because

A: it is time-consuming (and therefore expensive) to install.

B: It is very unforgiving of slight shifts in the way the door hangs.

C: It requires some special tools

D: It doesn’t seal against air infiltration very well.

Door manufacturers use all kinds of weatherstripping systems, some proprietary. The company I work for generally uses kerf-in Q-lon—which works well but isn’t as “clean” looking as the metal interlock. We have used some of the “vinyl bulb” products that are lower-profile with success.

I would recommend against the interlock, and use something replaceable, like Q-lon or a vinyl bulb. My .02

(You can buy all three options from Pemko and other places)

-- Jerry, making sawdust professionally since 1976

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Mark Shultz

117 posts in 2588 days

#3 posted 03-28-2017 07:14 PM

thanks guys.

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