I am after some advice i am about to build a very basic conservatory to use as a playroom for the kids, its going to be between 3 main walls so only 1 part will be exposed to the outside weathering. a bit like a U shape.
Its going to be 4m long and 2m wide, then when thats complete i may be adding a further 4.5 m length to it depending on the wifes decision!
So far its going to have 2 main beams of 4x3 timber obviousy 2m wide then there will be three main joists between them all being 4m long.
so basically 2 of the main beam joists will be fixed to the house then 1 main joist in the middle.
Is that going to be strong enough for the roof its only going to be polycarbonate 25mm so not very heavy?
so its basically a lean to roof a bit like a car port. also what is the minimum angle for the water to drain from it? i was thinking about 30 degrees.
Then obviously a concrete base at 150mm and plasterboard batton all round inside. Do i need supporting corner posts to help support the roof or will it be ok just fixed to the walls with decent fixings? bearing in mind i will have to stand on it to flash it after.
Joists 4x2?
end beams 4x3?
plasterboard batton 2x1?
Concrete base a total of 300mm after hardcore damp proof then concrete?
Also shall i do the roof flat and use joist hangers and then use filling timber on top of the joists to put a slight angle for the polycarbonate so it gets the water off?
OR shall i just do the actual main 3 joists at angle?
does anyone think i should use 4 joists instead of 3 ?
ANY advice i can get on this project on sizes of timber and which fixings are best etc will be highly appreciated and listened to, i am not a builder by trade i did plastering and window fitting years ago but never put joists up before so am just being extra carefull and making sure i get everything spot on.
Cheers !
Its going to be 4m long and 2m wide, then when thats complete i may be adding a further 4.5 m length to it depending on the wifes decision!
So far its going to have 2 main beams of 4x3 timber obviousy 2m wide then there will be three main joists between them all being 4m long.
so basically 2 of the main beam joists will be fixed to the house then 1 main joist in the middle.
Is that going to be strong enough for the roof its only going to be polycarbonate 25mm so not very heavy?
so its basically a lean to roof a bit like a car port. also what is the minimum angle for the water to drain from it? i was thinking about 30 degrees.
Then obviously a concrete base at 150mm and plasterboard batton all round inside. Do i need supporting corner posts to help support the roof or will it be ok just fixed to the walls with decent fixings? bearing in mind i will have to stand on it to flash it after.
Joists 4x2?
end beams 4x3?
plasterboard batton 2x1?
Concrete base a total of 300mm after hardcore damp proof then concrete?
Also shall i do the roof flat and use joist hangers and then use filling timber on top of the joists to put a slight angle for the polycarbonate so it gets the water off?
OR shall i just do the actual main 3 joists at angle?
does anyone think i should use 4 joists instead of 3 ?
ANY advice i can get on this project on sizes of timber and which fixings are best etc will be highly appreciated and listened to, i am not a builder by trade i did plastering and window fitting years ago but never put joists up before so am just being extra carefull and making sure i get everything spot on.
Cheers !
