Just bought a Stanley damp Meter for£40.00. Supposed to be accurate to 2%. Tried it out on my van and its reading 15% all over the van and 16 around the door. Is this a normal reading for a dry van at this time of year?
Also how far should the pins be pushed into the walls, if I just push enough to pearce the walls it doesn't leave a mark but if I push right in it leaves 2 big holes?
Played in the house with it and it appears accurate, around the bottom of ground floor external walls reading 8 to 15%, as you move up the wall it drops to zero so I think it is a good guide.
I have a Stanley meter and it is accurate against my dealers professional one.I found damp in my van when only a few months old and dealer had the same reading and it was put right under warranty.The best places to test is around corners and where panels joint roof at the edges.Around windows lift the rubber surround and test under then no marks will be visible.A piece of new kiln dried timber will give a reading up to 18% and only keep an eye on areas that are constant above 20%. Make sure prongs to not touch window rubber or you will have false reading. Push pins just enough to pierce vinyl wall covering.
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Thanks. Always said I would only buy a protometre but it does seem a decent bit of kit for the money and it comes with the test tool. It should be accurate really its only measuring resistance between the prongs. I was expecting readings of around 8% before I used it. So 15 is fine. At least I've got something to compare readings to on another van.
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Don't forget that at this time of the year there will be considerable moisture in the air, especially as it has warmed up in the last day or two. You could be reading this moisture on the surface of the board, not necessarily the damp underneath. If you press very gently, not enough to pierce the surface of the wallboard and get the same reading, you are picking up the surface moisture.
The way I see it your looking for a variation from the base readings you get. When my cheap meter found the damp in my then two year old van it was the difference not the actual readings that alarmed me.
I was straight down to the dealers, and they confirmed it.
.ive just bought 2008 bailey pageant limosin and not used it yet (wrapped up for winter) Ive left a de-humidifier bag I got from salop leisure in it whilst in storage.do they actually work ? can you use a electric de-humidifier from the house to take any damp out the air ?
I found that if you sharpen the point to needle sharpness with a file or solder a couple of needles to the points you can use greater pressure on the points to get a deeper penetration & when you remove the points from the wallboard the remaining pin holes are almost undetectable, then use the same places for every test
I also used this method to make a grid of holes on a damp area this allowed the moisture trapped below the
vinyl to escape & the area to dry without leaving unsightly holes I then resealed the area once dry with PVA
Quote: Originally posted by barney68 on 26/1/2015
.ive just bought 2008 bailey pageant limosin and not used it yet (wrapped up for winter) Ive left a de-humidifier bag I got from salop leisure in it whilst in storage.do they actually work ? can you use a electric de-humidifier from the house to take any damp out the air ?
A dehumidifier is a great way of wasting electricity. As you draw out moisture from the air, more will come in through the copious natural ventilation in the van.
Its worth using a dehumidifier for a couple of days when you return home early or late in the season after using it. Then you will quickly remove the EXCESS moisture caused by habitation, ie cooking, showers, and simply breathing.
Quote: Originally posted by freeatlast on 28/1/2015
Quote: Originally posted by barney68 on 26/1/2015.ive just bought 2008 bailey pageant limosin and not used it yet (wrapped up for winter) Ive left a de-humidifier bag I got from salop leisure in it whilst in storage.do they actually work ? can you use a electric de-humidifier from the house to take any damp out the air ?
A dehumidifier is a great way of wasting electricity. As you draw out moisture from the air, more will come in through the copious natural ventilation in the van.
Its worth using a dehumidifier for a couple of days when you return home early or late in the season after using it. Then you will quickly remove the EXCESS moisture caused by habitation, ie cooking, showers, and simply breathing.
That also applies to the bowls of salt or silicon as well - a great waste of money
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