ᐅ Leaky Front Door in a KfW 70 Energy-Efficient House

Created on: 27 Jul 2016 22:53
M
MünchnerKindl
Hello,
our house was completed last year. From the beginning, we had problems because it was noticeably cold near the front door. The staircase is right next to it, and when standing there, you can feel a clear draft from top to bottom. At the end of last year, our site manager came and adjusted the door, but he said he couldn’t do more.
It improved but was still not good.

In spring, we had heavier rain, and then water collected inside the house at the bottom of the front door. The entrance is raised by 2 steps (2 steps), so it can only be from the rain and not from standing water. The site manager explained to my husband that front doors are not waterproof. Today we had the same problem again – as has happened several times before.

It cannot be that water runs inside at the bottom of the front door every time there is a storm.
In addition, we have a mechanical ventilation system with heat recovery. Shouldn’t the door be sealed because of that alone?
I found something online about "wind-driven rain resistant" and tightly sealed joints. But that does not apply to our door at all.

Best regards
Jochen10411 Aug 2016 18:40
Our “cheap” secondary entrance door to the boiler room is located directly on the weather-exposed side and is not covered, yet no rain gets through (except when I accidentally left it open once ).