navitron
 
Renewable Energy and Sustainability Forum
UK's most popular Renewable Energy Forum May 24, 2012, 05:35:05 PM *
Welcome, Guest. Please login or register.

Login with username, password and session length
News: Anyone wishing to register as a new member on the forum is strongly recommended to use a "proper" email address - following recent spam/hack attempts on the forum, all security is set to "high", and "disposable" email addresses like Gmail, Yahoo and Hotmail tend to be viewed with suspicion, and the application rejected if there is any doubt whatsoever
 
Recent Articles: UPDATE ON DECC APPLICATION FOR LEAVE TO APPEAL TO THE SUPREME COURT | Yingli Green Energy's PV Module Ranks No.2 in TUV Rheinland Energy Yield Test | Navitron Solar Showers at Glastonbury for Year 5!
   Home   Help Search Login Register  
Pages: 1 2 [3]   Go Down
  Print  
Author Topic: 'Green roof' fall question  (Read 2080 times)
clockmanFR
Hero Member
*****
Offline Offline

Posts: 775



« Reply #30 on: October 29, 2011, 09:46:49 PM »

Rick O Shea, She was only hoovering, sorry my misspelling, and not hovering as biff and his Mrs does in the flying saucer/pot. She's not here next week but i will try, although memory's are better, just the vision of her at  full stretch upwards on tip toe with tight shapely jeans and that glimpse of flat tummy, ...(whoo steady on there forum members will fall of their stool's), with the feather duster to get that naughty cobweb in the ceiling corner, is a very strong memory at the present.

desperate, its all in the mind you know?

biff, what can i say, not the dads, i need to worry about, i think they would be delighted if i took there young filly's on. My Mrs might complain though, but then she does like help. No its the brothers, they are allot younger faster and fitter than I am.

But biff, to be honest, i only got married 14 years ago, and i have yet to find any young lady that could match my wife for long term sustainability. (just trying to keep this post in the principles of the Forum, hmm). extrahappy
« Last Edit: October 29, 2011, 10:10:14 PM by clockmanFR » Logged

Everything is possible, just give me TIME.
offthegridandy
Jr. Member
**
Offline Offline

Posts: 86



« Reply #31 on: January 13, 2012, 06:09:42 PM »

15 to 20 degrees is the figure I was recomended to use and you need to build an upstand at the bottom of the roof or the whole lot, seedum and soil can slide of .  1.5 mm Butyl rubber fully bonded to timber substrate makes a good reliable membrane.

Andy
Logged

8 KVA Lister TS2 Startamatic Genny
24 Volt 800amp battery bank
Trace SW3024 Inverter Charger
1.6 Kw PV array permanently ground mounted
Outback Flexmax 80
1.5 Kw wind turbine
7.5 Mtr Tower.
u/floor heating from oil boiler cross linked to 5Kw wood burner
mistadave
Newbie
*
Offline Offline

Posts: 23


« Reply #32 on: January 21, 2012, 11:08:44 AM »

Sorry to thread hijack, but could anyone here help me with the joist sizing for a small green roof I am thinking about? I have an 80s built bathroom extension which is 2.8 x 2.5m, 2.5m being the span of the joists.

Currently it has 50 x 100mm joists at 400mm centers and at one end they are built into the wall of the main house. There is a stud wall about 850mm away from the house wall, running parallel with that wall made of 50 x 100mm timber. I don't know if I can use this wall as a structural one?

Anyway, I'm thinking of a extensive meadow roof, so up to 1.5Kn dead load, and occasionally two of us might want to sit out on it for a tea break! roughly what size joists will I be looking at?

Also is it possible to cut down the joist at the house end to fit in the hole left by the old joists (top of the joist could be cut off), or is there any way that instead of buying say a 145 x 50 I could get a 75 x 50 and glue and screw it to the top of the existing joist to form a kind of laminate joist?

Any help gratefully received!
Logged
Pages: 1 2 [3]   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.16 | SMF © 2011, Simple Machines Valid XHTML 1.0! Valid CSS!