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  1. E

    Garden Room - Flat Roof Design

    insisting???
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    Garden Room - Flat Roof Design

    Yes, I'm aware these options exist, but I understood that they're more challenging to implement, maintain and also repair. For example, should leaves block the outlet and rainwater end up ponding around it it's more likely to seep into the internal structure than if a gutter was breached. Also I...
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    Garden Room - Flat Roof Design

    Thanks all. I'll school up on box gutters, but I think Notch7 is right, traditional guttering is simple, cheap and effective. It's not the most offensive thing in the world to look at and the alternatives are slightly over complicated for me and may pose problems down the line if I execute it...
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    Garden Room - Flat Roof Design

    Thanks for that. It's a great suggestion. After about an hour of googling around though I can't really see a simple off-the-shelf system I can use and everything else seems complicated and over engineered. For a properly designed build with skilled specialists it could be a great solution but I...
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    Garden Room - Flat Roof Design

    I'm returning to the thread while I tweak my design prior to work starting on the stud work started tomorrow. Here's what I currently have - firrings from the back to the front at about 1:40. The roof depth is about 2.5m, so I worked them out as about 60mm high at the back wall tapering to 1mm...
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    Outbuilding Height

    Hi Tony, thanks very much for your input again. Yes, it is completely detached and about 10m away from the side of my house. The walls in the representation are the side of a neighbours house behind it (in white), and a boundary wall with another neighbour to the right, which is the bottom of...
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    Outbuilding Height

    Morning all, I wasn't sure if this should go in the Building section, the Roofing section or here, but perhaps most sensible in here. I'm trying to build a garden room 2.4m x 3.4m, with a flatroof under Permitted Development. It abuts the neighbour behind it and the other one on the right and...
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    Garden Room - Structural Design Advice

    Well, I'm back! And I have another question, but not quite sure if this should go in this part of the forum, the roofing section or the Planning/Building Regs bit. Perhaps most sensible in here. I've now updated my design again taking on advice gained here: Principally I've changed the...
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    Garden Room - Structural Design Advice

    I have some follow up questions now that the groundwork has been done. The builder has built one single course of engineering bricks for the plinth although I specified three courses. He says 1 course above the ground level is sufficient since the vertical cladding will shield the sole plate...
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    Garden Room - Flat Roof Design

    Great! That's a plan then. Firrings rear to front, guttering along the front, raised edge trim along the two sides, fillet and flashing along the back wall. Thanks for the pointers.
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    Garden Room - Flat Roof Design

    I see, thanks for that. So just a drip trim on the non-drainage edges of the roof like this would be sufficient? Would a slight fall to the front with a gutter be advisable? thanks
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    Garden Room - Flat Roof Design

    Hello all, I’m in the initial build stages of a small Garden Room. It’s about 2m x 3m with an open storage area on the right side: The roof will be supported by a wall along the long edge at the back (5.4m) and on the right (2.9m). It will be basically flat, although I will try to...
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    Garden Room - Structural Design Advice

    Well yeah, it was a quick sketch really just to check if I'd understood the concept correctly, but a rush job, not to scale. I don't really want half my build cost to go on 4 strips of steel. Here is something proportioned a little better:
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    Garden Room - Structural Design Advice

    Thank you for the advice, that’s great. I’ll pop down to Selco or somewhere and see if I can find anything like that there. Hopefully I can get my builder on board with this, but it seems simple enough. Cheers
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    Garden Room - Structural Design Advice

    So, thanks to the advice in this thread I've tweaked the design a little bit to place a heavier 4x2 headplate orientated widthways forward at the front to support the rafters. There will be a second one behind it glued and bolted together. I've also tried to implement steel straps onto the right...
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    Garden Room - Structural Design Advice

    I wish. It's 3 x 2.6m. So less than 8m2. This is a pretty modest build.
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    Garden Room - Structural Design Advice

    The left and right side of the room are fully insulated and externally clad stud walls. The rear wall is the only one that places the frame against a garden wall, and the other side of that wall is the neighbouring house. That's the white wall behind the brick garden wall. There are three...
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    Garden Room - Structural Design Advice

    Thank you, that's very useful information. I think I'll keep the design more or less as it is then and investigate these metal straps further. Once I've understood how they would work a bit better I might add them into the design and report back to check if I'm on track or not. Thanks again!
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    Garden Room - Structural Design Advice

    Thanks for your input Woody. I'm not clued up enough to to know what this is. Does the steel channel form a roof support and run along the top or something? Do you have a link to something similar? I couldn't find much by searching online. Thanks again.
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    Garden Room - Structural Design Advice

    Thanks all for the replies. Seems like there some great info here, but I'm not a builder so some of this is a bit over my head. Ah, yes, I see what you mean. The stud timber spacing would be about 40cm anyway, so the full height windows aren't really interfering with the structure, they'll be...
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