澳洲Australia property Improve ventilation to subfloor | Sydney

在澳大利亚


Hi everyone

Just got the building report back from a place we are looking at and they did find some termite activity in the sub-floor. I'm going to have this investigated further but one of the obvious problems is that the subfloor area has no ventilation so to prevent future termite activity opening it up would be a good thing.

The land is slightly sloping and the whole subfloor (which is above ground) is blocked in by these largish concrete blocks (it's an early 70th building). Would it be possible to just cut ventilation holes into it? Most of the blocks are below decks etc. so it wouldn't hurt the way the place looks. Can this be done or would it be cheaper to just pay for termite barrier treatment every few years?

kaf  

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Judiciously cut suitable holes and cover them with vents. You might even be able to cut out large sections to get the air blowing through. This only creates a less appealing enviroment for termites it does not kill them if you have them nor does it prevent their return. I think you have to do both; chemicals and ventilation. Check for leaking water or faulty downpipes because they often need a source of moisture.  

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My parents live in a house with similar problem. They had a chap come in and knock holes in the brickwork (rendered on the outside). He placed aluminium copies of the old vents at intervals. He patched the render and they look like they were there forever. Didn't cost a bomb either.

I believe the problem with their ventilation was that the timber floor was "sweating" but not sure about that. Anyway it certainly fixed things.

Wylie  

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wylie said: ↑
My parents live in a house with similar problem. They had a chap come in and knock holes in the brickwork (rendered on the outside). He placed aluminium copies of the old vents at intervals. He patched the render and they look like they were there forever. Didn't cost a bomb either.

I believe the problem with their ventilation was that the timber floor was "sweating" but not sure about that. Anyway it certainly fixed things.

WylieClick to expand...
Hi guys

Thanks for that! Good to hear knocking holes didn't cost the earth, any rough idea of cost Wylie?

Just got the quote for the chemical termite barrier treatment - almost 6k, ouch!! It's a big place and they quoted us the "good stuff" which will last for a long time. Well, let's see what the vendor says...

Cheers

kaf  

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My mum says from memory the cost was under $300 for the whole job. I think he put about maybe six or eight new ones in (I am trying to picture how many vents there are - always a bit tricky) and I am fairly sure that price included the vents and he repaired the edges where the render was disturbed.

We also have a great pest man who we have known for many years. I don't know whether I would want the chemicals around. Could you investigate termite traps or stations instead? I know he put these in my mother's garden to fix the little blighters. I think they work by attracting the termites and they then take the poison to the nest. Better that spreading it all over the place, but not sure about the actual process.

Wylie  
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