ᐅ Start of House Construction / Laying the Foundation Slab / Tips

Created on: 11 Mar 2020 20:30
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Leergut64
Hello everyone,

Our construction project has finally started after some back and forth about the foundation wall, since my neighbor is building with a basement and I am not.
We were able to reach an agreement, and today work began on the slab-on-grade (ground slab).
I’ve attached some photos.

- Do you have any general tips on what to watch for with the slab-on-grade?
- Are there essential things that need to be considered?
- No gravel layer, vapor barrier, or anything else was installed under the Jackodur insulation boards—should I accept this?
- When is a vapor barrier necessary?
- What should be considered regarding the steel reinforcement?
- What do I need to watch for during the concrete pour?
- Is there a vapor barrier to be installed afterward?

I have also attached the composition of the slab-on-grade according to the energy saving ordinance calculation.
It mentions an expanded polystyrene (EPS) foam type PS_035 under the concrete. However, I have not seen this installed at my neighbor’s place.
- Should I insist on including this?

- No Jackodur insulation boards were installed in the area of the foundation wall.
Can anyone explain why?
Doesn’t this create a thermal bridge?

I am really grateful for any advice, as my construction supervisor is out sick, and I want to prepare as much as possible before he can approve the slab in two weeks.

Please, no negative comments—save those. Constructive criticism is welcome anytime.
Use the time you would spend on negative remarks to enjoy a hot cup of tea and your free time.

Good luck.

Construction site with white insulation membrane, red border, construction tools; background: houses and trees.


Construction site: foundation formwork with wooden frame, insulation boards, and black pipe.


Construction site: foundation trench with pink waterproofing membrane, orange construction machine, wooden boards.


White insulation boards on building base, red pipe stub in the middle, footprints on the ground.


Construction site: purple insulation boards in wooden frame, red string line, yellow measuring rod on the ground, soil.


Excavation pit with foundation slab and purple insulation boards, framed by wooden boards.


Construction site with foundation made of purple insulation boards, wooden formwork and steel reinforcement.


Foundation slab being prepared: formwork, reinforcing steel, construction crane and machinery.


Slab-on-grade: layer structure with diagram and tables showing material layers (W/mK, thickness).
Tarnari12 Mar 2020 00:44
Always interesting. People ask for advice and help, then provoke in their request, and when someone feels provoked and responds accordingly, the reply resorts to the lowest form of unpleasantness.
I wouldn’t respond to something like that.
Respect to hampshire for staying so calm.
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Leergut64
12 Mar 2020 15:05
Tarnari schrieb:

It’s always interesting. People ask for advice and help, and the request itself can be provocative. When someone feels provoked and responds accordingly, the reply often resorts to the lowest form of unpleasantness.
I wouldn’t respond to something like that.
Hats off to hampshire for staying so calm.

Tell me where I was being provocative?
Your pointless comment has nothing to do with the topic.
And honestly, I wouldn’t waste my time on such crappy remarks.
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Osnabruecker
12 Mar 2020 15:15
crappy post
shitty comments

I find the direction in which the discussion is developing interesting....
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pffreestyler
12 Mar 2020 15:17
Leergut64 schrieb:

Tell me where I was being provocative?
Your useless comment is irrelevant. It has nothing to do with the topic.
And honestly, I don’t have time for such crappy remarks.

Have you hit your head against the foundation slab one time too many?

Everything looks really terrible in your work. I would have it all redone. Please communicate this to the builders with the same tone you’re using here. They will then take the appropriate action.
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Sparfuchs77
12 Mar 2020 15:17
You will definitely find a lot of help here... The nickname says it all...
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Matthew03
12 Mar 2020 15:18
Leergut64 schrieb:

Tell me where I was being provocative?
Your useless post is irrelevant. It has nothing to do with the topic.
And honestly, I have no time for such rude comments.

Do us a favor and log off again.
Before that, you can browse through the posts here and see that 99% of the people on this forum are polite and respectful. You are an exception, which is a shame.