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Cath Brown

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since Jul 06, 2016
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Recent posts by Cath Brown

I would say it's more labour intensive.
You need the following
1) strong supporting roof structure
2) waterproof membrane
3) root barrier membrane
4) growing medium (shallow for extensive roofs, deeper for intensive roofs)
5) edge barrier to keep growing medium in place but allow excess water to drain
6) some   is a garden after all.

It can be very cheap if you find reclaimed materials and build everything yourself, or expensive if you go with ready built instant systems.
There is a lot of information online.
Good luck
3 months ago
This is gorgeous. I really love green roofs. Succulents are a good way to go, but eventually nature takes over and shows us what will survive. I have a friend who had a green roof in Turkey. Green in the winter, and dry straw in summer, but it still protected the house from the sun's heat.
3 months ago
Thanks! It's a good thing you're testing the roof...fingers crossed, it might be fine. Good luck!
3 months ago
Beautiful building!
I have used sedum on 2 buildings now with great success.

You can get it  in the the form of plugs, a blanket roll, or ready planted in interlocking modular trays with reservoirs in the bottom, to store excess water, which the plants can then use in a dry period.
The last is the most expensive system, but seems to work really well for me in the UK.

For sedum, the substrate should be very low in needs very little to survive, as it is a mountain plant that grows naturally on barren rocks and in crevasses.  A mix of perlite and very little soil is best.  I weed it once a year, and spray it with a hose pipe only after about 2 weeks of drought. Lovely flowers all summer.

As other viewers have said.... you need to check that the roof structure can bear the weight! I'm strong, but can barely lift a tray when it's throughly soaked.
3 months ago
It's sedum...drought resistant.....planted into recycled plastic trays filled with perlite with reservoirs at the bottom. Very low maintenance. Eventually it will spill over the sides of the trays and colonise the loose perlite in-between. The perlite and sedum are good insulators. The idea is to prevent overheating in the summer and lessen heatloss through the roof in the winter. They have beautiful flowers all summer too.
3 months ago
Thanks T Blankinship and Connor!
Re question: It rains a lot in the UK, and the ground is often damp.
To mitigate this the building is sitting on a 3 foot deep gravel foundation which extends about one foot beyond the perimeter The gravel bag foundation extends 2 rows above grade. Deep roof overhangs. Ventilation bricks.
So far the building is warm and dry in the winter (with a small electric radiator), and cool in the summer. I'm stoked!
3 months ago
Finally finished my Hyperadobe earth bag studio in the UK
Here she is....The MudHut!
3 months ago
Does anyone know if oil was originally used in Japan to seal Yakisugi siding?

I'm building a pallet cabin....plan to finish the siding with this burnt-wood technique.
I'm going for the "alligator" look, ie deeply charred and not brushed......It would save some money if I didn't have to seal it with oil.

Any knowledge most welcome.
3 months ago
Thanks Redhawk. Will post more pics in the Spring.
1 year ago
Earth bag studio (UK) nearly done!

Waiting for spring to complete the roof and plastering.
1 year ago