ᐅ Construction of sloped insulation for a basement entrance area

Hello everyone,

I’d like to introduce myself briefly since I’m new here.
My name is Johannes, and I’m 28 years old.
I am currently building my own home.
I work as a project manager in mechanical engineering.

Now I have a question where I’m not quite sure.

I have an entrance area that is built over a basement. This means the front door is set back on top of my basement ceiling slab.
So here I have the unfinished ceiling slab.
I want to insulate and seal this area up to the front door so that I can cover it later with polygonal tiles.
There is a height difference from the unfinished ceiling slab to the threshold of the door of 18cm (7 inches).

How should I design the layer structure here?
I was thinking of the following:

Unfinished ceiling slab
Sheet metal screwed onto the ceiling slab over the edge and attached to the perimeter insulation
Bituminous membrane up to the perimeter insulation over the sheet metal
Slope insulation
Bituminous membrane
Mortar with polygonal tiles

Please share your opinion and also what thicknesses you would recommend for the different materials or which materials would be suitable.

Thanks in advance for your help.
Oh, one more thing: the area width is 3.6m (12 feet) and the depth is 1m (3 feet).
An insulation thickness of 6cm (2.5 inches) with a thermal conductivity of 0.035 W/(m·K) is required.

Regards,
Johannes

Can no one help?

Hello,

otty82 schrieb:
can no one help

Unfortunately not here.

This is detailed planning that can only be done by a planner on site.

Regards

OK, I thought to myself.

Hello,

otty82 schrieb:
I am currently building my own home.
I am a project manager in mechanical engineering.

Quick question: How would you respond to such a question in your field? 😕
Don’t you have a planner / planning permission?
Hopefully your building services engineering isn’t just as disorganized, otherwise it will be a money pit!

Best regards