Hello,
Since re-roofing my parents’ house including the garage with Berlin profile tiles (roof tiles are not an option) is too expensive for them (260 sqm (2,800 sq ft) for 30,000 euros), my father wants to renovate the garage himself because it’s still a manageable size (about 50 sqm (540 sq ft)).
Currently, Eternit wave 5 sheets are installed directly on the rafters, which are spaced about 50 cm (20 inches) apart. Inside the garage, the ceiling consists of drywall panels.
We thought: if it has lasted 30 years, it can’t be that bad.
So we would simply replace the Eternit sheets again, directly on the rafters, and swap the drywall panels inside for Fermacell boards.
In other words: Eternit sheet -> rafters -> Fermacell board.
A roofer would of course handle this more professionally, using counter battens, battens, and a underlay membrane. Honestly, I don’t know if we could manage that ourselves.
Therefore, we would just replace it one to one.
Alternatively, you could also use trapezoidal metal sheets with fleece, but I don’t know if that would be possible without a substructure. Also, it would look different compared to the house’s roof.
What do you think? A completely foolish idea or a cost-effective way to renovate?
Since re-roofing my parents’ house including the garage with Berlin profile tiles (roof tiles are not an option) is too expensive for them (260 sqm (2,800 sq ft) for 30,000 euros), my father wants to renovate the garage himself because it’s still a manageable size (about 50 sqm (540 sq ft)).
Currently, Eternit wave 5 sheets are installed directly on the rafters, which are spaced about 50 cm (20 inches) apart. Inside the garage, the ceiling consists of drywall panels.
We thought: if it has lasted 30 years, it can’t be that bad.
So we would simply replace the Eternit sheets again, directly on the rafters, and swap the drywall panels inside for Fermacell boards.
In other words: Eternit sheet -> rafters -> Fermacell board.
A roofer would of course handle this more professionally, using counter battens, battens, and a underlay membrane. Honestly, I don’t know if we could manage that ourselves.
Therefore, we would just replace it one to one.
Alternatively, you could also use trapezoidal metal sheets with fleece, but I don’t know if that would be possible without a substructure. Also, it would look different compared to the house’s roof.
What do you think? A completely foolish idea or a cost-effective way to renovate?
H
hampshire10 Jun 2021 14:22Provided that the garage is used only for vehicles and not as a living space, I would recommend a cost-effective approach by installing trapezoidal metal sheets directly on the rafters and omitting the interior cladding. The rafters should be sufficient for a garage. No additional battens are needed; keep everything very simple. Costs are around €10 per square meter (approximately $11 per square yard).
R
rennschnecke10 Jun 2021 14:35@hampshire
The garage will be used for one vehicle and storage space, basically the typical use for a garage.
The trapezoidal roof would need a membrane underneath to prevent condensation, as we definitely want to avoid that.
I would add cladding at the bottom purely for aesthetic reasons. It should look reasonably neat.
The only downside might be the color difference compared to the main roof, which could bother some people.
I can’t recall the name right now, but you’d also need some kind of trim or edging at the front and possibly on the side of the garage to give it a finished look.
The garage will be used for one vehicle and storage space, basically the typical use for a garage.
The trapezoidal roof would need a membrane underneath to prevent condensation, as we definitely want to avoid that.
I would add cladding at the bottom purely for aesthetic reasons. It should look reasonably neat.
The only downside might be the color difference compared to the main roof, which could bother some people.
I can’t recall the name right now, but you’d also need some kind of trim or edging at the front and possibly on the side of the garage to give it a finished look.
H
hanghaus200010 Jun 2021 14:38rennschnecke schrieb:
I can’t recall the name right now, but you would also need some kind of trim at the front and possibly the sides of the garage to make it look neat. You didn’t do that with the fiber cement panels either.
rennschnecke schrieb:
The only issue might be the color difference compared to the main roof, which some might find bothersome. Corrugated metal sheets come in several colors.
H
hampshire10 Jun 2021 14:45rennschnecke schrieb:
A trapezoidal roof should then be installed with a vapor barrier to prevent condensation, because we definitely want to avoid that.You can also use sandwich panels, about €30 per sqm (approximately $30 per sq ft), and they are available in various colors as well. I wouldn't want to work with fiber cement sheets.R
rennschnecke10 Jun 2021 14:47hanghaus2000 schrieb:
You actually do have that with the fiber cement panels as well. Yes, there is a sloped roof edge in front of the garage. On the side, there currently isn’t anything, that’s correct. So we will need to add a sloped roof edge in front again, while we are still deciding about the side. With fiber cement panels, there would be corrugated gable flashing for this area. Naturally, we would choose red, like the house roof, but whether it would be the exact same shade of red remains to be seen.
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