Ventalation

How do members ventalate there lofts so the airflow is constant and not static
Ken

Hi Ken

Mines all done in the roof, I have no vents on the outside.

regards

fred

hi Fred so if urs are all in the roof, how is the air circulated, or is this done by electric fans, to circulate and push stale or stagnant air through the roof vents
Thanks Ken

No Ken,

I have two tiled apex roofs with a small aperture in the gable end, and belgian cortrege tiles, that dont fit to clever

the stale air just drift up thru the false ceiling and away in the loft space

my young bird loft is a different matter altogether, it's something me and my dad sorted out on an old loft 20 years ago, and it worked great then, but even better now.

Its a flat (pent) roof, with a front to back fall of about 18", I have a false ceiling with sliders in so I can shut it up completely. The false ceiling is perpendicular to the floor (great word, sorry I had a dictionary for lunch

This is the clever bit, the front of the 18" fall is open to the elements, with louvres and wire behind, to stop vermin and sparrows, the back end of the fall (from roof to false ceiling is open as well) it creates a great wind tunnel effect, and there is no smell of pigeons in the loft at all.

If I can I'll take some pics soon

I hope I aint gone on to much

regards

fred

Hi Fred no you have not gone on too much, so what your saying is the tunnel effect you have created though the use of the vents acts as a motor pulling up and circulating the air, Fred i know this is going to sound daft but ill ask anyway, for this system to work at its opitmum they would have to be a slight breeze outside, but how would it circulate the air and very still days ie no breeze at all. Tell me to shut up if you want Fred
Thanks Ken

Hi Ken

Dont worry about asking me anything, I've got no secrets

The false ceiling is the real roof, although the top roof is more solid, felted etc, the top roof seems to draw any air in, it might be where the loft is sited, although its got high hawthorn hedges at the back and sides, on the old loft me and my dad adapted the fall was from back to front, and it didn't seem to swallow the air as much,

It is a great system though!!!

regards

fred

Hi Fred bear with me please the old grey matter is not as bright as it once was, Fred this 18 inch drop seems to be the key in tunneling the air, now i could be wrong 9/10 times i am lol but stale or stagnant air is more dence that clean air so the poor air would be at the foot of loft where the fresher air is being circulated around the top. Fred are the front of ur lofts open IE not closed in, example i have my main doors open but directley behind these i have doweled doors, i hope u know what im getting at, lol
Thanks Ken

No Ken

the front, sides and back are all closed in, I do have two sliding doors on the front of the loft and a small amount of air creeps in,but not much

you must remember the ceiling vents are open most of the time, and they go the full length of the shed, about 20', so when there's a lot of wind about, as there is now, it feels quite chilly in there, as if it was wide open at the front

regards

fred

Thanks Fred
Ken

fred have you seen the spinning cowls you can get that spin and draw air out of your loft if you have what do you think of them i use them in my lofts and have found a difference in perfomance

Hi Ian

I have seen them, and if they work for you that's all that matters, is your roof pent or apex?

regards

fred

hi fred my roof is pent i also have vents to bottom top and back of lofts aswell as the spinning cowls thro the roof

and do you think the ventilation is right?

regards

fred

hi, at the moment my only entilation is below the roof front and back.........i was planning on putting vents into the doors approx 1ft up from the bottom, would this be enough or do i need more ? would too much ventilation cause draughts...... thanks.

for me you cant have too much ventilation

hi ian, have you seen the pic of niels loft in south africa......most of the front is open with wire and it looks to have excellent ventilation......

yes i would like mine like that then in the winter cover them with polycarb in the winter

can I ask you guys a question please?

do you race widowhood or natural? darkness or not with Y/b

what systems do you race?

regards

fred

Hi Fred i myself race the roundabout system
Ken

hi fred, when i restart racing in 2010 it will be with darkness ybs......when we raced before we raced obs on widowhood and ybs natural as there was no such thing as darkness at the time.....

Im only want to get a picture of things in my head so to speak

regards

fred

Ian been thinking about these roof vents how do you stop rain water from getting in espeacial like nights tonight constant wind and rain
Ken

surprisingly they dont get much rain in just a little bit even on down pours

Thanks Ian
Ken

the trouble with them is the cost they are around 180pounds