if i extract into a room that has damp will it help with the damp in the room?

it would probably make the room more damp... sa the air you extract will have moisture in it

More damp mate as your blowing moist warm air into the room.

definately a problem in veg

depends what rh you keep in flower

why not put a dehumidifier in the room that should keep the damp down.

all the best mate.

if you cant get hold of a dehumidifyer then you could vent air out the room as the suction will take the moisture out but slower than a dehumidifyer

Just realised that i have vents in my roof tiles (pics to come - camera is charging)

Intaking air from one of these vents would be an option - but thats not what im worried about - Its where to extract the warm air from the GB - here lies my problem......

choppers fly over my house several times a day without fail...the last thing i want is hot air blowing out of somewhere odd looking in the loft.

Venting out of the airbrick is the easiest option for me - but as i say this will look odd to a chopper imo and the same goes for the roof tile vents.

The chimney is closed at the top so thats not an option anymore.

that leaves me with -
1- somehow get the ducting into the soffits, how i just dont know? the gap between the tiles and floor is only 2" so i cant see how tbh
2- Vent into the room below (hidden in a built in wardrobe)

the time is getting close now and i need to know what im doing..........Help!!

2Roach

I don't think that venting out of places meant for it, like airbricks and stacks will look untoward to a chopper.

Depending on conditions, you could always try *intaking* air from the damp room and extracting it somewhere else (preferably outside but not necessarily) - you might be able to keep you plants and GR happy as well as sort the damp room out at the same time.

Just watch out for mould spores and stuff like that - you don't want to be dragging those through your GR past your plants.

In the summer I draw air from my soffets, I use a large box, closed at the bottom with a hole cut in the bottom for my duct. The box has the top flaps cut off and the box has been pulled open at the top on two opposing faces. This collapses the other sides of the box so you end up with a box with a wide thin end and a normal end. Shove the thin end into the eaves as much as you can and tape the ducting to the circular hole at the other end of the box. It will then suck air from your eaves.... not a great idea in the heart of winter though. If the damp room you are referring too is the attic, this should be ok to extract into as you have eave to eave airflow, nice bit of spare warmth as well

Maybe you could modify a heat exchanger to work with your ducting.This would allow you to keep the heat from your grow and extract the used humid air outside.

i hear 1 of your options is venting to a bedroom wardrobe

im going to extract into an upstairs bedroom cupboard (sounds like the same sort of thing), i plan to buy a plastic vent to fit in the celing (in the cupboard) and tape my ducting to the top of it. That way the warm air goes into a warm bedroom.. should be safe that way

hope that helps

the loft as a whole is very "airy" humidity at 60 even at the dryest points in the day so what i plan to do is extract the warm air from the GB out through the airbrick and just passive intake from the loft space - i reckon the air is more than fresh enough to do this.

ill try that 1st and if the passives are not doing what they are supposed to then i can always stick a bit of ducting to the roof vents and get fresh air that way.

to be perfectly honest i just need to get my light and filter in there and see what the temps and humidity levels are and work from there

Just to be clear - Airbricks usually have a flume of warm/hot air coming from them do they?

cheers fellas
Roach