Hello everyone,
We are at the beginning of our house planning and we like hipped roofs.
The development plan (for a weekend area) allows only 75 m² (807 ft²) of footprint and a maximum roof pitch of 30 degrees on the main roof surfaces.
Does anyone know of a tool that allows planning how large the surfaces of a hipped roof can be for a given footprint and roof pitch? For the trapezoidal sides of the hipped roof (south-facing), I would like to use the maximum 30-degree pitch, as I want to install photovoltaic panels there (positioned on east/south/west sides).
I hope an online tool could give me a better idea of how big the roof surfaces might be, as I want to calculate how many (or how few) photovoltaic panels could fit, and whether the combination of a hipped roof and a photovoltaic system even makes sense for a small footprint.
A few more details:
Footprint: approximately 9 x 8 m (9 m (30 ft) on the trapezoidal side of the roof)
Slope: planned as a full story, a garden level, and a basement
South-facing orientation
Free of shading
Additional planned surfaces for solar modules with a double carport (also free of shading) and possibly a garden shed
We are at the beginning of our house planning and we like hipped roofs.
The development plan (for a weekend area) allows only 75 m² (807 ft²) of footprint and a maximum roof pitch of 30 degrees on the main roof surfaces.
Does anyone know of a tool that allows planning how large the surfaces of a hipped roof can be for a given footprint and roof pitch? For the trapezoidal sides of the hipped roof (south-facing), I would like to use the maximum 30-degree pitch, as I want to install photovoltaic panels there (positioned on east/south/west sides).
I hope an online tool could give me a better idea of how big the roof surfaces might be, as I want to calculate how many (or how few) photovoltaic panels could fit, and whether the combination of a hipped roof and a photovoltaic system even makes sense for a small footprint.
A few more details:
Footprint: approximately 9 x 8 m (9 m (30 ft) on the trapezoidal side of the roof)
Slope: planned as a full story, a garden level, and a basement
South-facing orientation
Free of shading
Additional planned surfaces for solar modules with a double carport (also free of shading) and possibly a garden shed
hanghaus2023 schrieb:
Once the hipped roof is installed, you will have about 2 fewer modules. Even fewer. The hip tiles, which are shown here as a line, are bulky, thick components, meaning the modules have to be mounted slightly lower or at least with more lateral spacing.
H
hanghaus202319 Feb 2025 19:01My neighbor has it like that, I can gladly post a photo tomorrow.
That was just an example as a template for the OP since only they have the measurements of their modules.
I can provide an exact layout if I have the measurements.
That was just an example as a template for the OP since only they have the measurements of their modules.
I can provide an exact layout if I have the measurements.
G
gerrygerd20 Feb 2025 19:52Tolentino schrieb:
Gable roof, which can also be built with a high knee wall According to our zoning plan, a knee wall is not allowed. I have also considered the storage space: since the floor plan is not very large, the amount of storage lost is ultimately “not that much.” A second full story or upper floor is not permitted according to the zoning plan, so it’s only about storage space. Since we can build a basement, I don’t see this as a big issue. Do you see any other disadvantages of a hip roof?
G
gerrygerd20 Feb 2025 20:03hanghaus2023 schrieb:
You can easily draw that yourself and then add the modules to the sketch.Thanks for your sketches. Regarding drawing it myself, I’m not sure how the width of the area changes with different roof pitches, how steep the side walls would be, and ultimately how long the ridge would be. However, for an estimate of the “number of solar panels,” this is probably not crucial.I did a sketch and with a hipped roof and a ridge length of 2 meters (6.6 feet), I get 14 panels arranged facing east/south/west. For a gable roof facing south, I also get 14 panels (assumption: 9 x 8 meters (30 x 26 feet) footprint, panel size: 1.1 x 1.7 meters (3.6 x 5.6 feet)).
If the gable roof is oriented east/west, of course 14 × 2 panels would be possible. However, then we wouldn’t benefit from the south side, and especially during transitional seasons and winter, yields would probably be quite low.
One downside of placing panels on three sides would likely be higher costs. It would be great if you could post a photo of the neighboring house.
The slope of the site is 2 degrees (2°).
H
hanghaus202320 Feb 2025 20:14You said you want all surfaces to have the same slope, right? My illustration uses the same module dimensions. Is the long side facing south?
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