We are planning a new build with a low-pitched mono-pitch roof, with a slope between 7° and 10°. Now we are faced with the question of how it should be constructed and covered. The basic dimensions of the house are 10.99 x 10.865 meters (36.0 x 35.6 feet), and the roof is designed to slope upwards towards the north. The orientation is exactly 0° south. We plan to install a photovoltaic system and are now wondering how to design this roof in terms of thermal insulation, soundproofing, cost-effectiveness, and, of course, durability.
Option 1:
Reinforced concrete ceiling on the upper floor, insulation, and a framed roof structure with standing seam metal roofing
Option 2:
Same as Option 1, but with Braas 7° roof tiles
Option 3:
No reinforced concrete ceiling, but a truss construction; roof covering either metal or Braas 7° roof tiles
At the moment, I prefer Option 1 because it is executed as a cold roof and metal roofing is the better covering choice for the desired slope. I would like to hear your opinions and experiences regarding this.
Option 1:
Reinforced concrete ceiling on the upper floor, insulation, and a framed roof structure with standing seam metal roofing
Option 2:
Same as Option 1, but with Braas 7° roof tiles
Option 3:
No reinforced concrete ceiling, but a truss construction; roof covering either metal or Braas 7° roof tiles
At the moment, I prefer Option 1 because it is executed as a cold roof and metal roofing is the better covering choice for the desired slope. I would like to hear your opinions and experiences regarding this.
benediktr schrieb:
Have you considered what height difference a roof pitch of 7 to 10° means over 11 m (36 feet)? If you did, you would realize that the desired roof does indeed resemble the shape of a shed roof. You probably haven’t read much in the forums about the awkward roof designs some people want to hide behind parapet walls.
benediktr schrieb:
If you also want to contribute constructive comments on the mentioned options, or even suggest another alternative, it would certainly help not only me but all other readers. All other readers will naturally understand that a roof pitch of 7 to 10° is not ideal for photovoltaic panels.
https://www.instagram.com/11antgmxde/
https://www.linkedin.com/company/bauen-jetzt/
Hello
Our single-story house has a 5° roof pitch and a 2.5m (8 feet) eave overhang, which clearly defines the shed roof style. This is especially noticeable inside, as the ceiling height increases toward the southwest side following the roof slope. The roof overhang provides a nice covered terrace, effective sun protection during high summer, the large windows allow some solar gain in autumn and spring, and the high rooms create a spacious interior.
In the current new build, the roof pitch is also 5°, but on the visually two-story structure without an eave overhang it is hardly noticeable from the outside. Here, the optimal use of the site development plan conditions was decisive. Building regulations classify it as single-story because the staircase, bathroom, kitchen, and utility room partly have ceiling heights under 2.20m (7 feet 3 inches), and there are otherwise no restrictions due to the roof slope.
The roof construction is identical on both houses: root-resistant bitumen waterproof membrane – sheathing – 6cm (2.4 inches) ventilation gap – 1.6cm (0.6 inches) wood-based panel (DWD) – 28cm (11 inches) timber frame (KVH) insulated with rock wool – 18mm (0.7 inches) OSB board – 6cm (2.4 inches) timber frame (KVH) insulated with rock wool – sheathing – gypsum board.
During very heavy rain, external noise is audible but not disturbing.
Olli
Our single-story house has a 5° roof pitch and a 2.5m (8 feet) eave overhang, which clearly defines the shed roof style. This is especially noticeable inside, as the ceiling height increases toward the southwest side following the roof slope. The roof overhang provides a nice covered terrace, effective sun protection during high summer, the large windows allow some solar gain in autumn and spring, and the high rooms create a spacious interior.
In the current new build, the roof pitch is also 5°, but on the visually two-story structure without an eave overhang it is hardly noticeable from the outside. Here, the optimal use of the site development plan conditions was decisive. Building regulations classify it as single-story because the staircase, bathroom, kitchen, and utility room partly have ceiling heights under 2.20m (7 feet 3 inches), and there are otherwise no restrictions due to the roof slope.
The roof construction is identical on both houses: root-resistant bitumen waterproof membrane – sheathing – 6cm (2.4 inches) ventilation gap – 1.6cm (0.6 inches) wood-based panel (DWD) – 28cm (11 inches) timber frame (KVH) insulated with rock wool – 18mm (0.7 inches) OSB board – 6cm (2.4 inches) timber frame (KVH) insulated with rock wool – sheathing – gypsum board.
During very heavy rain, external noise is audible but not disturbing.
Olli
Similar topics