While redeveloping our house we decided to install a living roof on our kitchen roof, why you ask.. well..:
1. I liked the idea of having a bit more greenery in the property (we live in central London)
2. We wanted somewhere for some wildlife to have (bees etc)
3. Insulation - green roofs are brilliant at insulating, both keeping heat in and cold out
Read on for how we did this
* As usual and mentioned millions of times on here - I take no responsibility for anyone following this and any maiming, death or damage which follows; nor world war or anything else :)
Step 1: Getting started
Before putting anything on a roof you need to make sure its strong, very strong.
As we'd just had this roof made we ensured we'd had is strengthened - there are 10 joists under the roof, each bolted next to another joist and supported by a steel frame at either end - so its super strong just to be sure.
I found online is that living roofs can weight anything up to 150KG per SqM, so I asked our builder and engineer to work to a dead weight of 150KG - whats a 'dead weight' I hear you ask - well.. thats the weight it'll be when there is just itself up there, a live weight is stuff like water (rain), snow or the bloke on a ladder trying to install a satellite dish.
All set? Roof ready, then read on!