Idk if this is an American thing, but all the houses around where I live have 2 doors. The real door is the inner one, it opens inwards, mostly made of metal, and its what stops intruders. The outer door, which opens outwards, is just a metal frame that holds a pane of glass, not really a "door" and definitely aint stopping intruders.

Aparantly this "storm door" is supposed to be an extra layer against cold winds? 🤷‍♂️ Idk how that helps, because I'm not a scientist

[–] celeste@kbin.earth 5 points 2 days ago

I dunno but I didn't have one for a while and then i did and the temperature difference is noticable. You can also swap out the glass pane for a screen in the summer.

[–] humorlessrepost@lemmy.world 5 points 2 days ago

In warmer environments, they tend to be called screen doors, and are used when you want to leave the door open without bugs getting in. In areas with bad weather (ice storms and such), storm doors protect the door itself from the elements, especially if it’s an expensive wooden door.

[–] FelixCress@lemmy.world 0 points 2 days ago

It must be American thing, I have never seen a house with two doors (Europe), apart from front door and back door of course. I am not saying these don't exist but certainly are not common enough for me to see one.