ᐅ Paving and Drainage DIY

Created on: 16 Feb 2020 10:33
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M4rvin
M4rvin16 Feb 2020 10:33
Hi everyone!
As it’s starting to get warmer, some exterior work will probably need to be done soon! Before I dive into it, I’d like to hear a few opinions from you.
Here’s what needs to be done:
1) Installing curbstones
2) Spreading and compacting lean concrete (sometimes called flowable fill)
3) Paving the terrace and parking areas
4) Building a retaining wall
5) Garden shed

The priority is to pave the surfaces first to keep dirt away from the house.
For that, I should first install the curbstones and then fill with lean concrete.

Can lean concrete be left as is after compacting, or does it need to be leveled immediately with gravel and then paved?
(We already roughly backfilled and compacted during the groundwork, but it’s quite uneven now.)
Should the drainage channels be installed first and then compacted around? We definitely need one at the parking space facing the street. What about the terrace? At the house, along the wall, or both?

I have a wastewater connection at the heat pump, but that would require quite a lot of digging and curved piping now. Would it be an option to connect directly to the existing house connections instead? (Basically just cutting a piece out and installing a Y-connector.)

Thanks in advance for your input
Marvin
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ypg
16 Feb 2020 11:52
What can be seen in picture 10? The basement pipe is quite flat...
M4rvin16 Feb 2020 13:01
Image 6 = right rain gutter drain
Image 10 = left rain gutter drain

I haven’t fully excavated it yet; I just wanted to check the direction it goes, and to see if there is even a Y-connector like the one at the heat pump.
There should also be a small distributor in front of the house, but I’ll have to dig deeper for that!

Here is another picture showing how it looked after the groundwork, before the roof was installed.

White house facade with large glass sliding doors, gravel floor and construction area nearby
Y
ypg
16 Feb 2020 13:36
However, it should be installed directly below the frost line, meaning deeper than 80cm (31.5 inches). Otherwise, everything will freeze solid.
M4rvin16 Feb 2020 13:41
I will not dig deeper than 50cm (20 inches); a steep slope would be possible otherwise. (Depending on where I connect...)
B
Bookstar
16 Feb 2020 14:31
For rain gutters, a thickness of 50cm (20 inches) is sufficient, even if it does not meet the standard.