Hello!
I have inquiries about how the new roof should be technically executed. We want to move the kitchen to the short side area (which currently has a flat roof).
The old flat roof is to be replaced with a new hipped roof solution to achieve a transition to a new screen roof along the house's long side. The new roofs are intended to be shingled on board for simplicity's sake.
Roof pitch for new screen roof on long side is 14 degrees, existing concrete roof has 27 degrees. The trusses of the existing house are on cc 1200 with dimensions of 50x200 mm. The balcony door on the upper floor will be replaced with a window.
A new small extended entrance will be on the long side which should help support the screen roof on the long side. We just need to ensure that the screen and entrance roof will be unbroken along the entire long side. I am aware that we will need to open up the long side roof to lay new screen roof beams on existing trusses.
Three questions (hehe, there are considerably more...):
I have inquiries about how the new roof should be technically executed. We want to move the kitchen to the short side area (which currently has a flat roof).
The old flat roof is to be replaced with a new hipped roof solution to achieve a transition to a new screen roof along the house's long side. The new roofs are intended to be shingled on board for simplicity's sake.
Roof pitch for new screen roof on long side is 14 degrees, existing concrete roof has 27 degrees. The trusses of the existing house are on cc 1200 with dimensions of 50x200 mm. The balcony door on the upper floor will be replaced with a window.
A new small extended entrance will be on the long side which should help support the screen roof on the long side. We just need to ensure that the screen and entrance roof will be unbroken along the entire long side. I am aware that we will need to open up the long side roof to lay new screen roof beams on existing trusses.
Three questions (hehe, there are considerably more...):
- How can the new hipped roof "begin" (= be attached) to the house's short side and long side?
- What dimensions/qualities are suitable for beams/posts (snow zone 1.5, coastal winds)?
- How to execute the transition between the new roof and the short-long side concerning the existing concrete tile roof?
Tips and thoughts are gratefully received.
Intended plan and roof solution. New small porch/entrance on the long side.
Today's flat roof.
Hello and welcome to the Byggahus forum!
Whether you're building a hipped roof or a shed roof with an angle, there must be a beam in the actual diagonal. To suggest dimensions for the construction, I would need the measurements of the canopy's depth, as well as the distance between the intended pillars.
Whether you're building a hipped roof or a shed roof with an angle, there must be a beam in the actual diagonal. To suggest dimensions for the construction, I would need the measurements of the canopy's depth, as well as the distance between the intended pillars.
Thank you, the forum seems to be an endless well of knowledge for novices like me : )
If I measure correctly, the total eave length on the long side should be/become 13.2 meters with a depth of 2.7 m.
The total eave length on the short side should be/become 11.4 meters with a depth of 3.6 meters.
The distance between the proposed pillars on the long side can vary between 3 - 4.5 m (a new small entrance of about 6 sqm will be added on the long side and maybe it can also serve as a support structure for the eave as well - so the same roof is both an eave and entrance roof?).
"Beam in the diagonal": I'm not quite with you there, but I assume you mean the two dashed lines that run diagonally on the short side in the drawing?
Best regards, Anders
If I measure correctly, the total eave length on the long side should be/become 13.2 meters with a depth of 2.7 m.
The total eave length on the short side should be/become 11.4 meters with a depth of 3.6 meters.
The distance between the proposed pillars on the long side can vary between 3 - 4.5 m (a new small entrance of about 6 sqm will be added on the long side and maybe it can also serve as a support structure for the eave as well - so the same roof is both an eave and entrance roof?).
"Beam in the diagonal": I'm not quite with you there, but I assume you mean the two dashed lines that run diagonally on the short side in the drawing?
Best regards, Anders
Yes. I completely understand that description.D Deschen said:
The rafters that extend from the house walls (and rest on a beam that in turn rests on posts) should be 45x170 C 24 on the long side and 45x220 C 24 on the short side if they are spaced at c/c 1200 mm. If you want the same dimension on the outer beams where the maximum span is 4.5 meters, it should be glulam 90x270 mm. It looks best to use glulam posts, 90x90 mm, even if it might mean some over-dimensioning.
Ok, thank you so much!
So you don't have to crawl out under the screen roof on the long side? The idea is that the screen roof should have a 14-degree angle and start a bit up on the old roof trusses' long side. The guiding "starting height" should be the short side where the balcony door is removed (but a window must fit). I haven't quite figured out the design of the new corner at the short-long side yet, though.
Mmm, agree. Need to check my numbers and get back to you. Thanks!