R
RtZ
Banned
· Västra Götaland (Göteborg)
· 356 posts
RtZ
Banned
- Västra Götaland (Göteborg)
- 356 posts
I other threads, I have written about my extension, which has never had a building permit applied for. It has been standing there for over 20 years now, so that's not a problem. But now I want to increase the ceiling height, which would affect the outside as well. So, building permit or not, I haven't decided yet.
The extension (like the house overall) is made of cement blocks, but I'm planning to build up the extension further with lecablock. I want to make the roof with wood and sheet metal on top.
I have now started sketching a building description, primarily for my own benefit at this point. Not to submit, etc.
But the big problem right now is the sealing to the house wall, which is marked with red arrows in one of the pictures. A wooden roof that extends next to the cement wall of the house, how on earth do I create an acceptable seal against water (moisture, rain, etc., etc.)??
Is the technique to lay tar paper on top of the roof deck and also attach the tar paper up against the house's cement block wall? Or what tips do you have? I've been stuck on this question for a long time..
Or is a cement roof the only option in my case to make it waterproof?
Grateful for tips!
The extension (like the house overall) is made of cement blocks, but I'm planning to build up the extension further with lecablock. I want to make the roof with wood and sheet metal on top.
I have now started sketching a building description, primarily for my own benefit at this point. Not to submit, etc.
But the big problem right now is the sealing to the house wall, which is marked with red arrows in one of the pictures. A wooden roof that extends next to the cement wall of the house, how on earth do I create an acceptable seal against water (moisture, rain, etc., etc.)??
Is the technique to lay tar paper on top of the roof deck and also attach the tar paper up against the house's cement block wall? Or what tips do you have? I've been stuck on this question for a long time..
Or is a cement roof the only option in my case to make it waterproof?
Grateful for tips!
R
RtZ
Banned
· Västra Götaland (Göteborg)
· 356 posts
RtZ
Banned
- Västra Götaland (Göteborg)
- 356 posts
A standing board solves many problems
I didn't know there were such options.
Found the page http://www.teokonsult.se/plat/plattip21.htm. In my case, it's about a wall with cement block with plaster, and I simply have to chisel out so I can insert the standing board a little bit into the wall, and seal the joint in some suitable way?
Another page I found where there's a standing board against a brick wall; http://flapover.com/Pukan2009/06-42/album/slides/IMG_7553.html
I didn't know there were such options.
Found the page http://www.teokonsult.se/plat/plattip21.htm. In my case, it's about a wall with cement block with plaster, and I simply have to chisel out so I can insert the standing board a little bit into the wall, and seal the joint in some suitable way?
Another page I found where there's a standing board against a brick wall; http://flapover.com/Pukan2009/06-42/album/slides/IMG_7553.html
R
RtZ
Banned
· Västra Götaland (Göteborg)
· 356 posts
RtZ
Banned
- Västra Götaland (Göteborg)
- 356 posts
My next technical problem is how to place the joists over the roof; across (the shorter stretch) or lengthwise (the longer stretch). I've never laid a roof before or even planned such a thing.
The downside of laying them lengthwise, over the longer stretch, is the risk of sagging in the middle of the roof and the risk of the roof collapsing due to snow, etc. The downside of laying them across is that I need to secure a joist, etc., next to the house wall that really holds and can handle the weight of the roof.
This is about a slightly sloping roof, like a shed roof. What might be best; to place the joists across according to image option 1 or lengthwise according to image option 2?
What do you think? Grateful for tips and comments
The downside of laying them lengthwise, over the longer stretch, is the risk of sagging in the middle of the roof and the risk of the roof collapsing due to snow, etc. The downside of laying them across is that I need to secure a joist, etc., next to the house wall that really holds and can handle the weight of the roof.
This is about a slightly sloping roof, like a shed roof. What might be best; to place the joists across according to image option 1 or lengthwise according to image option 2?
What do you think? Grateful for tips and comments
