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BBQ Hut/Shelter
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The practical problem with solid wind breaks is (a) wind load against the structure and (b) they tend to create weird turbulence.
There's also some kind of architectural principle at stake here. If you look at the "weight" (size and colour) of the members built so far, as you go down in scale, from the outer frame to the rafters and purlins, you get a reduction in weight.
If you continue this with trellis or other lightweight structure, everything will continue to look good.
Conversely, if you start putting solid sheeting in there it will start looking weird. The brain will keep flipping from focusing on the posts and beams to the solid sheeting.
It'll be a sort of shed/pergola hybrid. A shergola. There's a reason this isn't a thing.
So I reckon trellis would be good. You can then plant climbers up the inside or the outside, depending on how green you want it to feel, or just leave sections blank.
Alternatively, more slats.
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couldn't agree more, shiplap and perspex it will start to look like any old garden shed, what Lumen has shown looks great and is functional, don't ruin all the good work nowThe practical problem with solid wind breaks is (a) wind load against the structure and (b) they tend to create weird turbulence.
There's also some kind of architectural principle at stake here. If you look at the "weight" (size and colour) of the members built so far, as you go down in scale, from the outer frame to the rafters and purlins, you get a reduction in weight.
If you continue this with trellis or other lightweight structure, everything will continue to look good.
Conversely, if you start putting solid sheeting in there it will start looking weird. The brain will keep flipping from focusing on the posts and beams to the solid sheeting.
It'll be a sort of shed/pergola hybrid. A shergola. There's a reason this isn't a thing.
So I reckon trellis would be good. You can then plant climbers up the inside or the outside, depending on how green you want it to feel, or just leave sections blank.
Alternatively, more slats.0 -
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That's a good idea about getting a sample. I like the idea of the polycarbonate but I was finding it hard to find examples online of a "glass" looking version of it. Will see if I can find somewhere in Cork offering the same.
Here's couple of pics I've just taken of a sheet of 5mm UV polycarbonate:
https://imgur.com/a/ksIuarU
I tried to focus on and through the sheet in the two pics.
This sheet I scratched to hell with a screw and then fixed with a heat gun.
It is very glass like. Until scratched.
So for a lean to you'd recommend just the angle to ensure water flows the right way is enough?
I see you went with triple glazing, any reason you went with this rather than single pane toughened glass or even double?
It's for a set of large patio doors (total about 5sqm glazing area) so needs to perform. It's not really any more expensive so why not? I just need an extra set of hinges for the weight.
But in your case weight matters, and this is open to the outdoors, right? So thermal performance is irrelevant. It's just the hassle of making the frames for toughened glass as opposed to the convenience of drilling and shoving some screws through polycarbonate, and making sure the glass doesn't fall down and kill someone.
So I dunno. Whatever floats your boat. Are you going to clean it? Cleaning polycarbonate without scratching is hard.
I think I mentioned before that there are various grade of scratch resistant polycarbonate (e.g. google marlon polycarbonate), but they're super expensive.
Have a chat with a local supplier.0 -
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which angle - do you mean flatter roof = less lift
or the opposite?
Flatter roof = less lift is my understanding from what the guys are saying here but I could be wrong.Here's couple of pics I've just taken of a sheet of 5mm UV polycarbonate:
https://imgur.com/a/ksIuarU
I tried to focus on and through the sheet in the two pics.
This sheet I scratched to hell with a screw and then fixed with a heat gun.
It is very glass like. Until scratched.
It's for a set of large patio doors (total about 5sqm glazing area) so needs to perform. It's not really any more expensive so why not? I just need an extra set of hinges for the weight.
But in your case weight matters, and this is open to the outdoors, right? So thermal performance is irrelevant. It's just the hassle of making the frames for toughened glass as opposed to the convenience of drilling and shoving some screws through polycarbonate, and making sure the glass doesn't fall down and kill someone.
So I dunno. Whatever floats your boat. Are you going to clean it? Cleaning polycarbonate without scratching is hard.
I think I mentioned before that there are various grade of scratch resistant polycarbonate (e.g. google marlon polycarbonate), but they're super expensive.
Have a chat with a local supplier.
Wow that stuff is great! Thermal doesn't matter to me as it's open and I am paranoid about having broken glass falling down on people so this might be the way to go all right.0 -
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0 degree is no lift, it increases with pitch to a point, then it starts to fall again.
Are you sure about that?
http://www.singleply.co.uk/the-effects-of-wind-uplift-on-roofs/
..and more engineery:
https://eurocodeapplied.com/design/en1991/wind-pressure-flat-roof
e.g.
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Ya apologies for the duplicate, I wasn't sure what the right area is.
Budget hasn't been defined yet, kinda figuring out costs to see when it can be done.
That's a good idea about getting a sample. I like the idea of the polycarbonate but I was finding it hard to find examples online of a "glass" looking version of it. Will see if I can find somewhere in Cork offering the same.
So for a lean to you'd recommend just the angle to ensure water flows the right way is enough?
I see you went with triple glazing, any reason you went with this rather than single pane toughened glass or even double?
This stuff is 100 quid for 5x1 x 10mm
You can get various colours and also multi layers (thats single layer)
That sample is from B&Q so Im sure you can get it cheaper and you can also get all the bits and bots to join, finish, cap etc.0 -
Are you sure about that?
http://www.singleply.co.uk/the-effects-of-wind-uplift-on-roofs/
..and more engineery:
https://eurocodeapplied.com/design/en1991/wind-pressure-flat-roof
e.g.
Yes I'm sure. That is up lift. Kinda the opposite to lift. That's still vlid, but we're talking about two different things.
In a square building the air hits the face and forced vertically. This creates a sort of vacuum at the parapet, which can pull the roof covering. This will reduce as the roof pitchs and occupies the void.
This is caused by the face of the building, so in a open structure it doesn't occur.
However, in an open structure lift can occur. When the roof catches air and is physically lifted from below. The higher the pitch the more it lifts.
Kinda like how the vanes on a windmill move.
In the OPS structure, if he didn't have the permeable rear wall, and a higher pitch. There could the roof could be lifted.0 -
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