Green Building Forum - Whats the best flat roofing material for under a 'green' roof...? Sat, 18 Apr 2026 17:48:58 +0100 https://www.greenbuildingforum.co.uk/newforum/ Lussumo Vanilla 1.0.3 Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58048#Comment_58048 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58048#Comment_58048 Wed, 15 Jul 2009 16:28:40 +0100 jon
Perhaps, if it's a trade secret, they could get someone eminent to sign an NDA and verify the consituent claims in a way that doesn't disclose the contents? Otherwise, it just makes the industry nervous.]]> Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58052#Comment_58052 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58052#Comment_58052 Wed, 15 Jul 2009 17:06:00 +0100 James Norton
...how long has it been used in the UK (or anywhere else I suppose...)

J]]> Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58055#Comment_58055 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58055#Comment_58055 Wed, 15 Jul 2009 17:26:18 +0100 Saint New website to be launched soon. Product will be basically the same but company will offer far wider solutions. Watch this or rather their space!]]> Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58057#Comment_58057 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58057#Comment_58057 Wed, 15 Jul 2009 17:45:50 +0100 James Norton
J]]> Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58070#Comment_58070 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58070#Comment_58070 Wed, 15 Jul 2009 20:31:28 +0100 Saint Robin it should be live in a couple of weeks (or less)]]> Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58075#Comment_58075 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58075#Comment_58075 Wed, 15 Jul 2009 21:59:07 +0100 fostertom Posted By: jonRoofkrete is Tricky isn't it?

Perhaps, if it's a trade secret ....

Posted By: James Nortonnot sure I can risk putting something in place under the turf that I don't really know what it is
Honestly boys you're getting all suspicious over nothing. It's not rocket science, just very expert cement technology.]]> Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58083#Comment_58083 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58083#Comment_58083 Wed, 15 Jul 2009 22:42:24 +0100 ali.gill also they give a 30yr guarantee

Main thing is to identify what type of green roof you will be specifying... see bauder site below
http://www.bauder.co.uk/green-roof-landscaping
also have you looked at the livingroofs site
http://www.livingroofs.org/

this firm impressed me at a local exhibition - more roof growth rather than roof covering
http://www.livingwallsgreenroofs.co.uk/index.htm]]> Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58088#Comment_58088 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58088#Comment_58088 Wed, 15 Jul 2009 23:18:45 +0100 Julian Posted By: ali.gilli'm in the process of spec'ing roofkrete on a 52m2 roof terrace - just need to clarify if it can be used as the finished floor surface for regular foot traffic on an intensive green roof terrace.
>

Ali, yes. You can.

James, fear not. Our architect specified Roofkrete without me even saying a word about it. It's not more widely known because of the scale on which the business operated. It does have a 30 year guarantee, has been widely used for, I believe, around twelve years as a roofing membrane. Asl for a sample. I think you'll be surprised but I don't think you'll be disappointed.]]> Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58130#Comment_58130 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58130#Comment_58130 Thu, 16 Jul 2009 14:33:34 +0100 James Norton
I note that Roofkrete contractors seem to be located largely in the south, any one know any North of Derby?


J]]> Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58145#Comment_58145 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58145#Comment_58145 Thu, 16 Jul 2009 17:50:51 +0100 ali.gill the firm is undergoing massive change with integration of a seriously experienced management team and ceo.
as a roof covering roofkrete has been installed for over 20 yrs.
new website to be launched soon along with re-branding and more diverse product application.

for my requirement - roofkrete can be built up and finished with a stipple effect to give a slip resistant finished floor surface.]]> Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58161#Comment_58161 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58161#Comment_58161 Fri, 17 Jul 2009 00:36:43 +0100 Saint Now to explode the mystique of multifoil....................but sadly there isn't any.......]]> Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58166#Comment_58166 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58166#Comment_58166 Fri, 17 Jul 2009 09:37:12 +0100 James Norton
anyone any ball bark /m2 cost ideas on Roofkrete or GRP, EPDM seems to be about 15/m2 plus labour, felt I would assume a bit less but more labour...

J]]> Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58171#Comment_58171 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58171#Comment_58171 Fri, 17 Jul 2009 10:42:32 +0100 howdytom Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58185#Comment_58185 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58185#Comment_58185 Fri, 17 Jul 2009 13:41:16 +0100 James Norton
http://www.liquidrubbergb.com/

http://www.rubbaroof.co.uk/rubber-roof.html]]> Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58192#Comment_58192 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58192#Comment_58192 Fri, 17 Jul 2009 14:36:09 +0100 fostertom http://www.culturepub.fr/videos/rubber-cement-colle-les-nonnes.html]]> Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58193#Comment_58193 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58193#Comment_58193 Fri, 17 Jul 2009 14:45:09 +0100 James Norton
J]]> Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58194#Comment_58194 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58194#Comment_58194 Fri, 17 Jul 2009 15:01:06 +0100 fostertom Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58273#Comment_58273 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58273#Comment_58273 Sun, 19 Jul 2009 14:38:32 +0100 betterroof what sort of green roof are you looking at?]]> Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58275#Comment_58275 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58275#Comment_58275 Sun, 19 Jul 2009 15:56:25 +0100 CWatters
Isn't it unusual for a cement based products to be "green"?]]> Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58279#Comment_58279 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58279#Comment_58279 Sun, 19 Jul 2009 16:45:17 +0100 ali.gill there seem to be many very pale shades of green emerging recently]]> Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58408#Comment_58408 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58408#Comment_58408 Tue, 21 Jul 2009 12:29:29 +0100 fostertom Posted By: CWattersWhat are the fibers/mesh normally used with Roofcrete?10mm square mesh steel, needn't be galv but in practice that's what available. Multiple layers, so it fills the volume of the Roofkrete. http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=174 has all the answers.

Green? well it uses very little material to maximum effect.]]> Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58454#Comment_58454 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58454#Comment_58454 Tue, 21 Jul 2009 21:03:46 +0100 RobLeigh
The link to the patent I’m challenging is:

http://gb.espacenet.com/search97cgi/s97_cgi.exe?sf=n&FIRST=1&F=0&CY=gb&LG=en&DB=gb.espacenet.com&PN=GB2313137&Submit=SEARCH&Action=FilterSearch&Filter=gb%2Fen%2Fespacefilt.hts&ResultTemplate=gb%2Fen%2Fresults.hts&ResultErrorTemplate=gb%2Fen%2Fincerror.hts&ResultCount=10

The document I’m citing as Prior Art is (i.e. information freely available to the public):

http://www.sefindia.org/forum/files/spshah_378.pdf


I’m also citing aspects of this patent (published in 1974 is no longer in force and includes all the methods described in patent GB2313137):

http://v3.espacenet.com/searchResults?locale=en_GB&PN=US3932969&compact=false&DB=EPODOC]]> Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58482#Comment_58482 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58482#Comment_58482 Wed, 22 Jul 2009 12:30:24 +0100 Saint He was the biggest promoter of Roofkrete]]> Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58491#Comment_58491 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58491#Comment_58491 Wed, 22 Jul 2009 13:39:31 +0100 James Norton
If its got a concrete-esque surface isn't that fertile territory for root damage in a green roof...?

...also how doe sit compare on cost (especially if you roofer is travelling across half the country)...

J]]> Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58515#Comment_58515 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58515#Comment_58515 Wed, 22 Jul 2009 21:34:07 +0100 ali.gill tech sheet - http://www.krete.co.uk/page65.html

Roof terrace ~60m2 quoted £75sq/m by experienced installer.
i believe there is a possibility of training contractors but don't know about cost
training - http://www.krete.co.uk/page920.html#top]]> Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58516#Comment_58516 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58516#Comment_58516 Wed, 22 Jul 2009 22:14:50 +0100 RobLeigh
What is the product, is it sand and cement Y/N?

Is it ferrocement?

Is it just a beautiful presentation of what we already know?

Have a look at the previous posting that cites the patent challenge and check it out for yourself]]> Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58658#Comment_58658 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58658#Comment_58658 Sun, 26 Jul 2009 18:08:33 +0100 CWatters Posted By: ali.gill"What are the fibers/mesh normally used with Roofcrete?"
tech sheet -http://www.krete.co.uk/page65.html" rel="nofollow" >http://www.krete.co.uk/page65.html

That shows what looks like galvanised steel mesh being used. I was actually interested to know what fibres, if any, were in the cement mix? All I could find out is that it's a patented "pre-mixed micro sand and cement mixture".

Concrete/Cement isn't normally fully waterproof so presumably there is something else in it or is the plastic sheet under it providing the additional waterproof layer?]]> Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58773#Comment_58773 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58773#Comment_58773 Mon, 27 Jul 2009 20:17:34 +0100 jon
Most of it could be deduced from the British Standard in force at that time. But that application was structural and this falls into a different category. He might be able to combine latter claims to get enforceability but just looking at it I'd hazard a guess that claim 1 is sunk.]]> Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58774#Comment_58774 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=58774#Comment_58774 Mon, 27 Jul 2009 20:19:26 +0100 James Norton
J]]> Whats the best flat roofing material for under a 'green' roof...? https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=64515#Comment_64515 https://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=4252&Focus=64515#Comment_64515 Tue, 20 Oct 2009 18:08:05 +0100 James Norton
http://www.greenbuildingtalk.com/Forums/tabid/53/forumid/22/postid/66253/view/topic/Default.aspx

several other forum threads on google but nothing there when link clicked...

J]]>