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Cheers. I recently redid out shed roof, so that will be fine for a good while, but we've got a flat roof outhouse that if it ever needs doing I'd like a living roof. And/or if we ever get an extension I'd like one there too.
Definitely be curious to know what the final m² cost of the roof is.
As to how long it will last - the roof, or the whole thing?
The roof.
@Silly_Savage - that's a good link.
hugo7-
As to how long it will last - the roof, or the whole thing?
The roof.
I'd expect it to last a lot longer than a standard felt roof.
There should be minimal sun damage, and I will hopefully only have to replace the trim if anything.
Overall, I've tried to design it so that rain water is diverted from joins, and there shouldn't be anywhere for it to pool.
NotThamesWater
There's a couple of options that I'm looking at, but it's basically
There's will be cutouts for any excess water, and guttering to channel it away.
I should probably do some maths on the weight, and ability of the roof / walls to support the weight.
The rafters / studs are 2x4s on 360mm centers, and the roof has a span of 1440mm. Back of the envelope calculations, finger in the air & wishful thinking suggests that I should be OK by an order of magnitude.
As to how long it will last - the roof, or the whole thing? Quite a while, I hope...