Do you know why when placed in a car or caravan etc they absorb a lot of water? They are trying to dry out the earth atmosphere, total con in my humble.
Dehumidifiers
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Do you know why when placed in a car or caravan etc they absorb a lot of water? They are trying to dry out the earth atmosphere, total con in my humble.
Spinney
Bimbleur extraordinaire
- Location
- Back up north
and then through a vent in the roof unless you want damp in the attic...
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Threevok
Growing old disgracefully
- Location
- South Wales
That's not quite the way it works.
Spinney
Bimbleur extraordinaire
- Location
- Back up north
?
if you don't vent it out of the house, why wouldn't you get damp in the attic?
The bold bit in the quote was my addition, I should have made that clear...
*goes back to edit*
That's the end of condensation, right there. Hop out of a steaming hot shower in the middle of January with ice outside, and shave in the mirror without wiping it down first.
Profpointy
Legendary Member
Strange thing with modern standards. In the olden days windows were somewhat draughty. Then we had more or less sealed uo windows which were less draughty. This resulted in damp so you then had to have "trickle ventilation" in windows. I've even read of new houses with electrically operated ventillation to counteract the too-sealed-upness of the windows. WTAF is the sense of that ?
Threevok
Growing old disgracefully
- Location
- South Wales
Sorry, Mistook that bit
The attic should already be vented (assuming it hasn't been converted) otherwise damp in the attic would be a problem anyway, without the addition of any extraction unit.
Anyhoo, ignore my blunt attempts at a sharper explaination - see here
http://www.envirovent.com/home-vent...-mould-solutions/mr-venty-eco-sub-2-sub-loft/
* Other products from other companies are available
Threevok
Growing old disgracefully
- Location
- South Wales
That's exact;ly my problem. Since having the windows and loft insulation tripled, plus the amount of people and pets trippled too - the house is too "airtight" to cope
Spinney
Bimbleur extraordinaire
- Location
- Back up north
That's interesting, I've not seen one of those before.
I was thinking of lofts in my current and last houses where, although they were ventilated, the addition of a bathroom-full of steam via an extractor fan would have caused some damp. In both cases the extractor fan was vented to the outside through a tube (like a tumble dryer hose) to a vent thingy set into the roof tiles.
The thing you're thinking of is much more sophisticated.
Threevok
Growing old disgracefully
- Location
- South Wales
They also do a models with in/out breather tubes too, for properties with small (or lack of) a roof space
As I said though,they are not cheap
summerdays
Cycling in the sun
- Location
- Bristol
Not sure if that is what we have, some kind of fan/heat exchanger that comes on when the humidity rises (after a shower) and then turns itself off automatically. When it's cold and damp outside it can sometimes stay on for quite a long time.
There is no sense , its a backlash from the European legislation to make new buildings and houses more efficient without thinking about older properties . When it was realized that sealing up the older buildings would lead to problems they decided to introduce trickle vents as a must . So seal it up then drill a big hole in it . Another example of the office running the show
Joey Shabadoo
My pronouns are "He", "Him" and "buggerlugs"
Another cause was bricking up all the fireplaces which provided natural vents.