Hello.. new around here so I hope this is in the right place in the forum!
Bought a house with my partner in July last year and we have now taken care of the big things and are planning an extension.
The extension is a plank wall with roofing felt, and 2 layers of tongue and groove wood (22mm). There's no upper floor on it, just a metal roof directly over.
The problem now is that the roof seems to have leaked water many, many years ago. About 1 sqm of the ceiling and 3 sqm of wall have rotted, and I suspect that part of the wall has lost its bearing strength as the roof sags a little now.
I'm curious how and in what order I should do everything to fix this?
Should I reinforce the corners and place a 45x220 or similar against the roof and then replace everything underneath to a 600cc system, or should I just replace the bad section and hope it holds up?
Since this is old construction, I'm also thinking about insulating and using age-resistant plastic but don't know how to join everything together? Any tips??
Bought a house with my partner in July last year and we have now taken care of the big things and are planning an extension.
The extension is a plank wall with roofing felt, and 2 layers of tongue and groove wood (22mm). There's no upper floor on it, just a metal roof directly over.
The problem now is that the roof seems to have leaked water many, many years ago. About 1 sqm of the ceiling and 3 sqm of wall have rotted, and I suspect that part of the wall has lost its bearing strength as the roof sags a little now.
I'm curious how and in what order I should do everything to fix this?
Should I reinforce the corners and place a 45x220 or similar against the roof and then replace everything underneath to a 600cc system, or should I just replace the bad section and hope it holds up?
Since this is old construction, I'm also thinking about insulating and using age-resistant plastic but don't know how to join everything together? Any tips??
You don't have any drawings, plans, and sections, so one can see where this is located in the house?
I believe you need to remove all the planks that are rotten. You will likely need to remove some tongue-and-groove boards to see it. If a large part of the wall is in bad condition, I think your suggestion with a 45x220 beam on top and then standing studs at c/c 600 is good, otherwise, you can do a more limited repair.
Looks like the more I tear down right now. However, I've found another problem... I'm very sure on how to lay new papp, etc., from the outside, but since there's a large metal piece and it seems to be major root problems on the roof, I'm wondering how on earth I'm supposed to repair papp/råspont from the inside without removing the entire roof on the outside...
Skogsägare
· Stockholm och Smålands inland
· 23 251 posts
Is it the same roof on the whole house, or is the hallway and the extension in the adjacent room separate from the rest? If it's the latter, it might be time to properly replace that entire roof. On the other hand, if the whole roof is one and the same, it might still be time to replace it...
Replacing the wooden sheathing and underlay without touching the metal roof sounds like a difficult maneuver in any case.
Replacing the wooden sheathing and underlay without touching the metal roof sounds like a difficult maneuver in any case.
The metal roof is in very good condition. I actually don't know where the moisture came from, but it's probably many years before that roof was installed. The metal roof is only on that expansion. The rest is different.
The plan is to expand on this roof in a couple of years, so the best thing right now might be to just carefully remove the damaged part, fix the paper where it's broken with age-resistant tape (joint tape) and then release it, etc., or plywood where the tongue and groove have been removed? Until we can replace the metal roof or build a floor on it.
If the råspont and felt under the metal are bad, you must remove the metal. Simply patching the felt is doomed to fail. You also need to see the full extent of the damage. If you are careful, you might be able to open the seams in the metal so that you can reuse it.
Best answer
If time, money, and energy allow, maybe it's time to start the reconstruction already now. Instead of spending money and time on a repair that seems quite cumbersome under these circumstances only to demolish in a few years.