Grass lawn on top of flat concrete roof

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Grass lawn on top of flat concrete roof

Postby arranp » Mon Apr 28, 2014 8:03 pm

Hello,

Anyone have knowledge and can give pointers to companies that lay a grass lawn ontop of a glat concrete roof, the way to do, whats involved etc.

building on a sloping land, have the garage at ground level and ontop of the garage to have a 17m x 8m lawn for use by the kids to play on etc.

Thanks in advance for advice.

Regards
Arran.
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Re: Grass lawn on top of flat concrete roof

Postby Sometimewoodworker » Tue Apr 29, 2014 6:10 am

arranp wrote:Hello,

Anyone have knowledge and can give pointers to companies that lay a grass lawn ontop of a glat concrete roof, the way to do, whats involved etc.

building on a sloping land, have the garage at ground level and ontop of the garage to have a 17m x 8m lawn for use by the kids to play on etc.

Thanks in advance for advice.

Regards
Arran.

You would be better advised to put sweet potatoes on the roof as they provide better heat reduction, are easier to maintain, and food. The study I saw said the sunlight usage was 40% higher Tha grass.
http://www.japantimes.co.jp/news/2006/09/07/national/ntt-firms-say-sweet-potatoes-best-to-fight-heat/#.U17g9P8aySM
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Re: Grass lawn on top of flat concrete roof

Postby cooked » Sun May 04, 2014 3:25 pm

1. Leaking
2. Not leaking yet

I had many hours of well paid fun fixing green rooves. Either they leak or the drainage doesn't function.
Dolt: a dull or foolish fellow
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Re: Grass lawn on top of flat concrete roof

Postby Sometimewoodworker » Sun May 04, 2014 3:32 pm

cooked wrote:1. Leaking
2. Not leaking yet

I had many hours of well paid fun fixing green rooves. Either they leak or the drainage doesn't function.

The sweet potatoes were hydroponic so didn't have any effect in the "1. Leaking
2. Not leaking yet"situation.
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Re: Grass lawn on top of flat concrete roof

Postby Ians » Wed May 07, 2014 8:32 pm

If you intend turning your roof into a garden / lawn you will need to pay very careful attention to the waterproofing of the concrete - you will need to do a bit of research into membrane / sealing etc. as you would not want to bet your most precious appendages that it won't leak - maybe not this week / month / year but at some time in the future it will leak - water has a habit of finding the most minute area to start leaking - either via gravity or capillary. Being Thailand a couple of sheets of plastic thrown under the garden / lawn would be the norm for water-proofing - that's if they even bothered being so sophisticated.
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Re: Grass lawn on top of flat concrete roof

Postby schuimpge » Wed May 07, 2014 10:19 pm

Better install a bunch of solar panels over the roof.
No worries about concrete heating up, no maintenance and free electric to boot.
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Re: Grass lawn on top of flat concrete roof

Postby Andyfteeze » Sun Sep 07, 2014 9:48 am

Are the foundations strong enough to carry the extra weight? 1 litre of water equals 1 kg. soil is heavier than water. Be careful with the weight. If its exposed to the elements and you get a down pour, the weight could DOUBlE !!
Its a good idea but really should be factored in when building, not an after thought .
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