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25th April 2008, 12:15 AM #1New Member
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- Dec 2007
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- Melbourne
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- 6
Exterior cement board - waterproof ?
Hi
We are soon to build & clad a timber framed building, close to the house where it has to look good. We considered Cemintel, the fibre cement panels that look like weatherboards. Then I learnt today that it costs about 2-2.5 times as much as weatherboards, and may not have any real durabality advantage. So . .
As it’ll take up a lot of our remaining garden bed, my wife suggests we grow a climber over the building, and likes the *clinging fig.
Fibre cement must remain sealed, so the two long term aren’t compatable
I find in Wikipedia there is a kind of exterior cement board which is waterproof
"It can be used on the exterior of buildings as a base for exterior plaster systems and sometimes as the finish system itself"
I know of interior waterproof/ resistant cement board for showers etc - is there an exterior water*proof cement board here in Australia?
Thanks
Rick
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25th April 2008 12:15 AM # ADSGoogle Adsense Advertisement
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25th April 2008, 12:31 AM #2
No
Peter Clarkson
www.ausdesign.com.au
This information is intended to provide general information only.
It does not purport to be a comprehensive advice.
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25th April 2008, 01:15 PM #3New Member
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- Dec 2007
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- Melbourne
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If
What do you suggest?
Thanks
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27th April 2008, 09:44 AM #4Senior Member
- Join Date
- Oct 2005
- Location
- newcastle
- Posts
- 356
hi
fibre cement board in a vertical surface situation is weather resistant for all intents and purposes. If long term it may not be painted again, then the sarking behind can provide life of building waterproofing. choose a good water proof product perhaps like tyvek homewrap and overlap and tape any joins so the building is totally waterproof before you clad in fibre cement.
Your options depend on budget, what your existing house looks like, and what you want the out building to look like (eg blend in, stand on its own, look thoroughly modern etc).
Just on a personal aesthetic viewpoint, while I can totally understand the ficus pumila look - I'd either build the thing so it looks beautiful on its own, and /or put a hedge in front that doesnt harm the building fabric like a ficus eventually will.
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27th April 2008, 09:59 AM #5Member
- Join Date
- Jun 2006
- Location
- melbourne
- Posts
- 77
hello,
yes look at all the "fibre-cement" shacks that are around in coastal holiday towns, I know down the mornington peninsula plenty around,
they where typically "grey" board, timber strip over joints (seal first), and painted so it is fine
as pharma suggests wrap with paper do a really good job overlapping, seal around openings with say sikaflex or bostix,
and seriously paint with at least 3-coats of weathershield or like
thankyou
myla
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28th April 2008, 07:27 PM #6
Don't even think of growing a creeping fig on a fibre cement wall.
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28th April 2008, 07:29 PM #7
OR Ivy!!!