I am currently building a double garage with an attached carport made of YTONG blocks and a ring beam, and I am considering the best roofing option. Sandwich panels were initially planned, but there is still some flexibility.
The roof will be fully covered with solar panels. It is important that no water penetrates the roof, especially around the solar panel mounts, which require quite a few drillings.
The roof is flat with a 7.5-degree (13%) slope facing south. The roof area is approximately 70m² (750 sq ft) – 6m (20 ft) wide and 11.5m (38 ft) long.
The roof is close to the house and should not create a drumming noise when it rains. I don’t think tiles make sense since they won’t be visible due to the solar installation.
I am open to opinions and ideas.
The roof will be fully covered with solar panels. It is important that no water penetrates the roof, especially around the solar panel mounts, which require quite a few drillings.
The roof is flat with a 7.5-degree (13%) slope facing south. The roof area is approximately 70m² (750 sq ft) – 6m (20 ft) wide and 11.5m (38 ft) long.
The roof is close to the house and should not create a drumming noise when it rains. I don’t think tiles make sense since they won’t be visible due to the solar installation.
I am open to opinions and ideas.
nordanney schrieb:
Have a structural engineer design a sensible support structure.
Keep in mind that you will be putting a lot of weight on the roof. As a rough estimate, you can calculate generously with 50kg per square meter (10 lb per sq ft) – so without roof penetrations, this can result in over 3 tons of weight. If the system is fastened directly to the roof, it will be less – but that requires a detailed plan.
I would simply suggest a traditional concrete slab according to structural requirements, with waterproofing on top, followed by the photovoltaic system secured with weights. Yes, structural support is currently designed with sandwich panels. With 24cm (9½ inches) walls, that is not an issue. Ideally, there should be thermal insulation since the garage will also be used in winter. Therefore, pure concrete would not be ideal unless I add separate insulation.
bigborre schrieb:
Sorry, I don’t quite understand your answer:
how far the entire building mass would be set back from the property boundaries (?)
-> What? I mean how far the edges of the building are from the property lines. Buildings built directly on the boundary are height restricted, and the total length of boundary-adjacent structures is also limited (usually 9 + 6 = 15 meters (about 49 feet)).
bigborre schrieb:
Why not just use the technical surface as the roof covering?
-> Sure, if you know exactly how you want to design the roof. It can be wood, steel, concrete, sandwich panels, etc. The roof structure itself is something quite different. I meant: why, for example, use solar panels on the roof covering instead of as the roof covering?
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Alright, distances don’t matter, I’m in the building zone and could even build a one-and-a-half-story house there. The plot is fairly large.
Hmm, you mean the roof made of solar panels. I want to have some insulation above and am wondering if it can be made airtight? I’ve never heard of that except for carports or patio roofs.
Hmm, you mean the roof made of solar panels. I want to have some insulation above and am wondering if it can be made airtight? I’ve never heard of that except for carports or patio roofs.