ᐅ Foundations for Aluminum and Glass Patio Covers

Created on: 20 Nov 2017 09:01
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Musketier
Musketier20 Nov 2017 09:01
Hello everyone,

We are currently planning a 6x4m (20x13 feet) patio roof for next year.
The plan is for an aluminum and glass roof with two supports positioned at the front edge of the roof, each set about 1m (3 feet) inward from the left and right edges. A vertical blind is planned to be installed between these two supports.

At the moment, we are uncertain about the foundation options.
Our patio measures exactly 6x4m (20x13 feet), the same size as the roof. For the front supports, we could:
1.) place them right on the edge of the patio,
2.) set them slightly inset, or
3.) have them extend slightly over the lawn.

The patio builder recommends option 1. That’s probably the simplest solution for them. However, I find it inconvenient because I would have to mow the lawn all around the supports. Additionally, we want to install a vertical blind between the two supports, ideally one that can close all the way down to block cool air if needed.

From an aesthetic point of view, option 2 (set in about 5-10cm (2-4 inches)) would be my preference.
The question is how the foundation could be designed in a visually neat way in this case.
We have patio slabs from Rinn with a thickness of 8cm (3 inches). Is it possible to place the foundation beneath a slab in such a way that the slab does not need to be cut, and to anchor the supports to the foundation using long screws going through the 8cm (3 inches) slab?
kaho67420 Nov 2017 10:38
Could you quickly sketch the three versions by hand?
Musketier20 Nov 2017 15:30
I just realized I made a mistake while drawing.

The builder of the patio roof naturally recommends option 3.
I am leaning towards option 2.

Solar panels on two supports with crossbeam over ground foundation – diagram.


3D roof structure with two support posts and crossbeam
kaho67420 Nov 2017 18:39
Ah, I was a bit confused.
I’m also in favor of the lawnmower-friendly option.
We have two pillars at our carport as well. I’m not sure if that’s comparable. But in our case, the beam is installed first, and then the paving stones are laid underneath it. The beam rests on a steel bolt that’s set in concrete. The gap was left wide enough for the stones to fit underneath. So no drilling is necessary. Would that work for you as well?
A
Alex85
25 Nov 2017 14:42
How does the rainwater management work? If there is no gutter, I find option 2 a bit inconvenient. It also reduces the usable area of the terrace.

How is the shading handled from above?
K
Knallkörper
25 Nov 2017 15:06
I would build the foundations recessed and lowered below the paving. The openings for the posts will be cut out of the paving. This looks the cleanest.