any thing under 15% is considered normal,I have a cheap meter which reads 25% across my dry finger tip. using in the van I get 0%. Personally if you get any reading at all in this present dry weather I would opt for a professional check before you buy
Quote: Originally posted by old chap on 01/10/2011
. Personally if you get any reading at all in this present dry weather I would opt for a professional check before you buy
Thanks,
How do I go about getting that done?
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Quote: Originally posted by wizard9956 on 01/10/2011
What car do you have ? does it have enough power , what make/model caravan are you looking to buy . Try this site http://www.whattowcar.com/ to see if your car and caravan are a good match for towing .
atb
Wizard
80% match and 4.5 stars overall, you watch the van be a banger now
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timber is kiln dried to around 8-10% and soon re absorbes. a reading of around 15-20% is ok but lower is better once over 20% its open to attack.to be honest a reading in this weather isnt going to make it much lower.if you have the type of meter with a scale of lights anything red or borderline then thats trouble.ive been in damp and timber treatment for 30+ years.
my cheap meter (Aldi) has a facility to calibrate it .By calibrating to 100 & then switching to test it then gives a digital readout from 0 to 100. as I said it shows 0% all over the van but a read of 25% across my dry finger
as you have tried on dry timber & get 10% then if above this in the van could be suspect
you can get a mobile caravan mechanic to check it for you IF your not happy with the readings you get but really like the van.it would probably cost £30-45 for this & you would be perfectly sure you have not bought a lemon
You can find mobile mechanics here on the NCC workshops list: http://www.approvedworkshops.co.uk/search/#results
I put in West Midlands/mobile and got this chap but there may be others in nearby counties.
Alternatively if you could hire a Protimeter mini from a local tool hire shop as I used to. The Scale on the Mini is is actually coloured coded as well as giving a percentage figure. Green-okay, Orange - needs further investigation, Red - Very damp. I would walk-away from anything 'van that shows red or orange -unless you want a restoration project or are happy to someone else to repair it for you. There ARE lots of good dry 'vans out there.
It is easy to use and comes with an extension probe for checking out of the way spots. Then it's just a matter of taking readings all round the interior of the 'van - walls, ceiling and floor - particuarly near doors, windows and skylights by pushing the pins of the meter/extension lead into the wall/ceiling boards deeply enough to penetrate the plastic surface. Don't push the pins into the rubber window seals as that will give a false, high, reading.
This link gives tips and a diagram showing where you should test.
Quote: Originally posted by adandemsmom on 01/10/2011
Just tried it son some furniture at home, getting about 10%.
lol just got same ish reading on our furniture with my £300 + protimeter.so you should be ok to test with it.check all floor wall joints ,ceiling/wall joints for suspect awning rail joints. inside wherever there is a joint strip outside.around all windows.and skylights and wherever else you can without upsetting seller. atb with your purchase.funny thing is ive never taken my protimeter to buy a caravan.