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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Hi<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Where are you my friend who is a gardener says look in local walls and
gutters for plants that are already growing locally in thin soil it will
proably be a sedum. 30mm of soil with 10mm of gravel is not much heaver than
tiles probably less than 100kg /m2 when soaked maybe some one else knows the
max load on bales. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Roofing membranes.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>The range of options depend on the pitch of the roof and how sure you
want to be that it <b><span style='font-weight:bold'>absolutely</span></b> will
not leak and how long you want it to last.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>If you are doing anything other that a full commercial 25 year guarantee
job (see at the bottom) you can save money and worry, by using a “cold
deck construction”. You do this by introducing a ventilated space below
whatever deck (probably plywood) that you are going put the membrane on this
will enable any moisture from “SMALL” leaks and condensation to dry
out. Keep the insulation and final moisture barrier below the ventilated
space. This form of construction also allows you replace the green bit of the
roof without letting water in to the house if you have a disastrous leak.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>If you use cold deck construction and a pitched roof about 25 degrees
you can really cut corners and use any old scrap plastic (even bin liners) nailed
on like tiles and protected by old carpet. If you want to spend a bit more
(which I would recommend) use a semi rigid studded membrane (something like oldroyd
see <a
href="http://www.safeguardeurope.com/pdf_datasheets/oldroyd_xv_datasheet.pdf">http://www.safeguardeurope.com/pdf_datasheets/oldroyd_xv_datasheet.pdf</a>)
or anything else you can find that is cheap. The studs trap water and stop the
earth slipping off.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>On a flat roof use anything elastic there are several <span
class=style71><font color="#0d3386">rubber membranes</font></span> available or
pond liners. As long as you prepare and protect the deck to avoid snags and
splinters and protect from sunlight you can use any flexible membrane. Avoid things
like builders DPM that are not elastic because unless you use lots of old carpet
as movement layers they may be damaged when the roof moves. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Few of these things are environmentally sound but if you don’t nail
the flat roof membrane at all and only fix the pitched roof membrane at the top
edge at least it can be recycled.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Sorry that there is not a simple answer but if you let me know the roof
pitch and what insulation that you are using I can send you a sketch.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Patrick<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Note: Spec for a commercial guarantee job<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:36.0pt;text-indent:-18.0pt;mso-list:l0 level1 lfo1'><![if !supportLists]><font
size=3 face="Times New Roman"><span lang=EN-US style='font-size:12.0pt'><span
style='mso-list:Ignore'>•<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'>
</span></font></span></span></font><![endif]><span lang=EN-US>18mm plywood
deck.<br>
<br>
Loose laid Sarnavap 2000 polyethylene vapour control layer.<br>
<br>
SarnaTherm EPS-E CFC and HCFC Extruded polystyrene thermal insulation board
from Kingspan Insulation Ltd.<br>
<br>
Sarnafil TG66-15 Flexible Polyolefine single ply membrane loose laid with all
overlaps hot air welded. FLL approved for use without an additional root
barrier.<br>
<br>
SarnaLite roof lights.<br>
<br>
Sarnafil AquaDrain 20mm recycled polyethylene drainage and protection board.<br>
<br>
65mm of lightweight growing medium formulated to the suit the local
environment.<br>
<br>
Nature Mat® vegetation blanket consisting of a variety of flowering drought
resistant sedum, succulents and mosses installed over the prepared growing
medium for an ‘instant’ green roof.<br>
<br>
Entire roof assembly, including the greening element, guaranteed by Sarnafil
Ltd. <o:p></o:p></span></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<div>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span lang=EN-US style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
</span></font></div>
<p class=MsoNormal><b><font size=2 face=Tahoma><span lang=EN-US
style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span lang=EN-US style='font-size:10.0pt;font-family:Tahoma'>
strawbale-bounces@amper....muni.cz
[mailto:strawbale-bounces@amper....muni.cz] <b><span style='font-weight:bold'>On
Behalf Of </span></b>Amit Kvint<br>
<b><span style='font-weight:bold'>Sent:</span></b> 29 September 2006 08:25<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">Strawbale@amper....muni.cz</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> [Strawbale] Earth roof</span></font><span
lang=EN-US><o:p></o:p></span></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Hi All, <br>
<br>
I am about to finish a small room (12sqm) SB, and interested in knowledge of
¨live roofs¨, should be light because its a load bearing construction with clay
plaster, any ideas for light soil roof? also what kind of water proof membrane
should I use?<br>
<br>
Amit<o:p></o:p></span></font></p>
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