Hello dear forum,
I have been following along for a while and today decided to register because I’m not really sure how to proceed.
We are currently building a new house and are working on the terrace. We want to build it over our garage, which is planned to have a flat roof. The interior build-up height is 14cm (5.5 inches), and the balcony door is threshold-free, so the exterior build-up height is also 14cm (5.5 inches).
At the moment, the concrete slab has no slope. The plan was actually to have a sloped screed extending over 7m (23 feet).
The architect recommends a 0-degree roof, which makes us somewhat uneasy, so we are now considering the sloped screed again.
A 40mm (1.6 inches) XPS insulation board is planned to be used, with a fleece-backed membrane installed on top, which brings the build-up to 43mm (1.7 inches) and is already in place.
Everything else is still open. Any ideas on this?
We are quite flexible regarding the surface covering.
I have been following along for a while and today decided to register because I’m not really sure how to proceed.
We are currently building a new house and are working on the terrace. We want to build it over our garage, which is planned to have a flat roof. The interior build-up height is 14cm (5.5 inches), and the balcony door is threshold-free, so the exterior build-up height is also 14cm (5.5 inches).
At the moment, the concrete slab has no slope. The plan was actually to have a sloped screed extending over 7m (23 feet).
The architect recommends a 0-degree roof, which makes us somewhat uneasy, so we are now considering the sloped screed again.
A 40mm (1.6 inches) XPS insulation board is planned to be used, with a fleece-backed membrane installed on top, which brings the build-up to 43mm (1.7 inches) and is already in place.
Everything else is still open. Any ideas on this?
We are quite flexible regarding the surface covering.
Sloped screed with insulation or sloped insulation, both are possible and common.
But I still don’t quite understand your heights?
If the door is supposed to be threshold-free and a slope of 2° over 7m (23 feet) is necessary, assuming the slope goes away from the door, then you already have a height difference of 14cm (5.5 inches) just due to the slope. This leaves no room for flooring. Therefore, probably the suggestion of a flat roof with 0° slope, which is technically definitely feasible but will cause additional costs.
But I still don’t quite understand your heights?
If the door is supposed to be threshold-free and a slope of 2° over 7m (23 feet) is necessary, assuming the slope goes away from the door, then you already have a height difference of 14cm (5.5 inches) just due to the slope. This leaves no room for flooring. Therefore, probably the suggestion of a flat roof with 0° slope, which is technically definitely feasible but will cause additional costs.
Thank you for the responses. Unfortunately, the slope insulation with a 2-degree incline is no longer an option.
Do you have any ideas for a covering? We have already considered a 1-degree slope for the screed, so that we would have at least some incline, and then apply a relatively thin layer on top. The covering would then have 7cm (2.8 inches) - 4.3cm (1.7 inches) = 2.7cm (1.1 inches) left.
The cistern is a good idea, thank you!
Do you have any ideas for a covering? We have already considered a 1-degree slope for the screed, so that we would have at least some incline, and then apply a relatively thin layer on top. The covering would then have 7cm (2.8 inches) - 4.3cm (1.7 inches) = 2.7cm (1.1 inches) left.
The cistern is a good idea, thank you!
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