Yep, now is the time, the roof is leaking. Can you fix it yourself or not? I would also like to increase the slope which I think is too slight. I see two issues in the current construction.
1: The råspont boards run across the slope, if there's a leak at one end of the garage, water can follow the boards and leak through anywhere.
2: The roofing felt is laid along the slope, if it fails at a seam, the water runs in.
I don't know if it has to do with the slope why the felt is laid like that; if it were laid across, pools would probably form at every seam.
Unfortunately, there is no drawing for the garage; it was probably built on a whim.
What is the minimum sensible slope and how do you lay the felt?
I probably also have to replace the råspont boards; is it sensible to rotate them 90 degrees, or does it not matter? Rotating them also means the roof will be a bit higher, which will require a bit more work.
Make an attempt to explain what it looks like using a sketch.
is there a glass panel under the roofing felt?
it's difficult to fix a leaking roof. and surely you have water damage then. so a bigger renovation might be suitable.
No, no! I wrote the wrong thing because I was thinking the wrong way, it's not sparse paneling, it's those tongue-and-groove boards, I can't remember what it's called.
Raw punkt is what it's called, right?
No, no! I wrote it wrong because I was thinking wrong, it's not spaced paneling, it's those tongue and groove boards, I can't remember what it's called. Råspont is what it's called, right?
Then it looks like it is correct with the råspont at 90 degrees to the slope.
But what is the minimum slope for a felt roof?
Is a metal roof an option?
Then it seems that it is correct to place the raw planking at a 90-degree angle to the slope.
But what is the minimum slope for a tar paper roof?
Is a metal roof an option?
Well, there is no direct minimum slope. There are tar paper roofs that have almost no slope.
You can install a metal roof. Just choose the right type. There are many options.
What I can see is that the roof is correctly constructed. The wooden paneling and the surface roofing felt are both positioned as they should be, generally speaking. However, as mentioned, the slope seems minimal. But on the other hand, 2cm/m is approximately what you have in the shower. Yes, you can fix it yourself, as long as you're a bit handy and read up on how it works. To begin with, you should, if possible, try to determine the renovation needs. If it has started leaking recently, it might suffice to temporarily fix the leak now and dry out the structure and then just replace the roofing felt in the spring or on a nice weekend. How long has the current roofing felt been in place? Replacing such a flat roof is indeed convenient since it's so easy to work with ;-)
I think that a sheet metal roof with such a low pitch must be welded, and thus we are talking about a seamed and welded sheet metal roof. I don't think a sheet metal roof is a practical option.
From what I can see, the roof is built correctly. The paneling and the surface roofing felt should both lie as they do, usually.
However, the slope seems quite minimal. On the other hand, 2cm/m is roughly what you would have in the shower.
Yes, you can fix it yourself, as long as you're a bit handy and read up on how it works. To begin with, you should, if possible, try to assess the renovation needs. If it has started leaking recently, it might be sufficient to temporarily fix the leak now, dry out the structure, and then just redo the felt in the spring or on a nice weekend. How long has the current roofing felt been there? Redoing such a flat roof is quite convenient since it's so easy to work with ;-)
From what I can see, the roof is built correctly. The rough-sawn wood planks and the surface felt should both be positioned as they are, normally.
However, as mentioned, the slope seems on the low side. But on the other hand, 2cm/m is roughly what you have in the shower.
Yes, you can fix it yourself as long as you're a bit handy and read up on how it works. To begin with, if possible, you should try to determine the renovation need. If it started leaking recently, it might be enough to temporarily repair the leak now and dry out the construction, and then just reapply the felt in the spring or during a nice weekend. How long has the current felt been in place? Reapplying on such a flat roof is quite convenient because it's so easy to work with ;-)
When it started leaking is unknown. The water needs to seep through insulation and plastic before it affects the gypsum. I assume the roof is significantly damaged and much of the rough-sawn wood planks need to be replaced. I'm leaning towards covering it with plastic until spring; a drawback is if it starts blowing, but you'd need some serious courage to be on the roof these days.
The roof has been there since '83, so I have no reason to complain.
I checked out Lindab's metal roofs, the one Timell installed on TV. Unfortunately, they recommended a roof pitch of at least 12 degrees.
When it started leaking is unknown. The water has to get through insulation and plastic before it attacks the plaster. I assume the roof is severely damaged and that much of the råspont needs to be replaced. I'm leaning towards covering it in plastic until spring, one problem is if the wind starts blowing, but damn it, being on the roof in these times is no joke.
The roof has been there since 83, so I have no reason to complain.
Checked out Lindab's sheet metal roof, the one Timell installed on TV. Unfortunately, they recommended a roof slope of at least 12 degrees.
contact insurance company??
contacting them shouldn’t mean a company will come there to do the job
When it started leaking, one does not know. The water has to go through insulation and plastic before it reaches the gypsum. I assume the roof is seriously damaged and that much of the raw wood needs to be replaced. Leaning towards wrapping it in plastic while waiting for spring, it's a hassle if it starts blowing, but it's a real challenge being on the roof in these times. The roof has been there since '83 so I have no reason to complain. Looked a bit at Lindab's metal roof, the one Timell laid in TV. Unfortunately, they recommended a roof pitch of at least 12 degrees.
If it started leaking in the last few days, which is not impossible, although it doesn't have to be so, but if it is. Then just fix the leak, dry it out, and you don't need to replace the raw wood, insulation, etc., basically just fix the leak and the surface layer. Exactly that happened to my father on his flat roof, and he didn't need to replace anything other than the ceiling panel, after fixing the leak.
It's good that you assume the worst case, but don't take it for granted unnecessarily
And exactly, your slope with 2.5cm/m has worked for over 30 years. And the paper from '83 was specified to last, well, what 15-20 years? Not surprising if it starts leaking now, the paper probably should have been replaced some time ago.
I see that one of Mataki's products for low-pitched roofs allows a slope down to 1:100, i.e., 1cm/m, less than half your slope They give 2+8+5, i.e., a total of 15 years warranty on that product and mention that accelerated tests show the material properties should remain even after 30 years. But that's today's product, not the one they had 32 years ago But for today's product, warranty for 15 years and lifespan around 30 years.
Fix your leak, make sure to dry out, and with a bit of luck, it's enough for you to replace the paper and fix the interior surface.
