Jump to content


Photo

Condensation On Garage Floor


  • Please log in to reply
26 replies to this topic

#16 panky

panky

    Camshaft & Stage Two Head

  • Members
  • PipPipPipPipPipPipPipPip
  • 1,690 posts
  • Location: Cheshire
  • Local Club: Northwest Casual Classics

Posted 13 December 2021 - 04:07 PM

Double post


Edited by panky, 13 December 2021 - 04:09 PM.


#17 Gaz66

Gaz66

    Mini Mad

  • Members
  • PipPipPipPip
  • 175 posts
  • Location: Yorkshire

Posted 13 December 2021 - 04:33 PM

Right, time to take some bricks out and replace with airbricks then and see how that goes.

#18 absx2

absx2

    Super Mini Mad

  • TMF+ Member
  • PipPipPipPipPipPip
  • 696 posts

Posted 13 December 2021 - 05:02 PM

I have just checked BBC weather and here in Cornwall on a dry day it`s 94% humidity so I feel your pain and cars here do rust sat in a dry garage.

I use old carpet on the garage floor as it acts like a dehumidifier and the two cars I have off the road have been oily ragged all over as no matter how good the garage is, if you open the door everything steams up.

Dry lined ( timber framed ) garages do a lot better job at keeping the condensation levels down



#19 Chris1275gt

Chris1275gt

    Super Mini Mad

  • TMF+ Member
  • PipPipPipPipPipPip
  • 585 posts
  • Location: Reading

Posted 13 December 2021 - 05:15 PM

Mine is stored in a wooden garage that has 50mm insulation on the inside and roof but most importantly has a damp proof membrane under the concrete and tied into the 3 course brickwork it sits on and is as Dry as a bone. If. You can do that retrospectively it’s a long term solution. I would not have a heater going, the cold car would be sopping wet with condensation all the time.

#20 IronmanG

IronmanG

    One Carb Or Two?

  • Members
  • PipPipPipPipPipPipPip
  • 715 posts
  • Location: Crawley
  • Local Club: Box hill. Lsmoc member

Posted 13 December 2021 - 05:36 PM

Ye 2 choices.
A couple of vents and move the air with a fan is definitely a good idea.
Or seal everything and use a dehumidifier. The better ones about 100 quid have a percentage setting on them with 5% intervals
65% seems to be decent figure. They are pricey to run though so only when the dew point is affecting you which could 8 degrees or something like that

#21 Tornado99

Tornado99

    One Carb Or Two?

  • Members
  • PipPipPipPipPipPipPip
  • 721 posts
  • Location: Vancouver

Posted 13 December 2021 - 09:33 PM

Ye 2 choices.
A couple of vents and move the air with a fan is definitely a good idea.
Or seal everything and use a dehumidifier. The better ones about 100 quid have a percentage setting on them with 5% intervals
65% seems to be decent figure. They are pricey to run though so only when the dew point is affecting you which could 8 degrees or something like that

Might just be more cost effective to raise the temp in the garage than run a dehumidifier long term. Only needs to be a few degrees above ambient to drop the RH%. 

 

Would also confirm it is a humidity issue by using a cheap humidity sensor. If its 90%+ RH then yes, dropping that number should alleviate the issues. If the pooling water is coming from elsewhere, then keep looking at other options.



#22 IronmanG

IronmanG

    One Carb Or Two?

  • Members
  • PipPipPipPipPipPipPip
  • 715 posts
  • Location: Crawley
  • Local Club: Box hill. Lsmoc member

Posted 13 December 2021 - 10:20 PM


Ye 2 choices.
A couple of vents and move the air with a fan is definitely a good idea.
Or seal everything and use a dehumidifier. The better ones about 100 quid have a percentage setting on them with 5% intervals
65% seems to be decent figure. They are pricey to run though so only when the dew point is affecting you which could 8 degrees or something like that

Might just be more cost effective to raise the temp in the garage than run a dehumidifier long term. Only needs to be a few degrees above ambient to drop the RH%.

Would also confirm it is a humidity issue by using a cheap humidity sensor. If its 90%+ RH then yes, dropping that number should alleviate the issues. If the pooling water is coming from elsewhere, then keep looking at other options.

Ye raising the temp will help but the place would need to be sealed and insulated preferably otherwise it will cost a lot.
Cheapest airbricks but if the humidity outside is 90+ % in the cold thats not so good
More expensive to seal and heat / dehumidify

#23 Gaz66

Gaz66

    Mini Mad

  • Members
  • PipPipPipPip
  • 175 posts
  • Location: Yorkshire

Posted 13 December 2021 - 10:25 PM


Ye 2 choices.
A couple of vents and move the air with a fan is definitely a good idea.
Or seal everything and use a dehumidifier. The better ones about 100 quid have a percentage setting on them with 5% intervals
65% seems to be decent figure. They are pricey to run though so only when the dew point is affecting you which could 8 degrees or something like that

Might just be more cost effective to raise the temp in the garage than run a dehumidifier long term. Only needs to be a few degrees above ambient to drop the RH%.

Would also confirm it is a humidity issue by using a cheap humidity sensor. If its 90%+ RH then yes, dropping that number should alleviate the issues. If the pooling water is coming from elsewhere, then keep looking at other options.

Theres not pooling water, its a thin layer of condensation.
You cant even see it but when you walk on it its slippy and then you notice it beading up where you've stood/walked.
Id say its definately atmospheric.

#24 T5FAU

T5FAU

    Passed Test

  • TMF+ Member
  • PipPip
  • 29 posts
  • Location: Hampshire

Posted 15 December 2021 - 12:42 PM

The changing weather lately has been perfect for producing condensation in garages. Its probably just the wild spikes in temperature. My mini was dripping wet the other day when it went from 0c to 10c between 2 nights. All fine now its vented and stabilised. 



#25 Gaz66

Gaz66

    Mini Mad

  • Members
  • PipPipPipPip
  • 175 posts
  • Location: Yorkshire

Posted 15 December 2021 - 01:22 PM

Its dried up now with the warmer weather.
I will be putting some air bricks in though still.
The next drop in temps and it will be back I'm sure.

#26 Ethel

Ethel

    ..is NOT a girl!

  • TMF Team
  • PipPipPipPipPipPipPipPipPipPipPip
  • 24,512 posts
  • Local Club: none

Posted 15 December 2021 - 02:10 PM

Your garage floor is a dehumidifier, it's condensing water out of the air. If you mop it up before it can reevaporate you're on to a winner.

 

You could stick in some flapped  exhaust vents and a humidity or temperature, controlled fan to blow in fresh air when it's warmer/drier outside. Even better if you can create a loft space to collect heat from the roof



#27 IronmanG

IronmanG

    One Carb Or Two?

  • Members
  • PipPipPipPipPipPipPip
  • 715 posts
  • Location: Crawley
  • Local Club: Box hill. Lsmoc member

Posted 24 December 2021 - 09:11 AM

You can also get anti condensation paint. Put a couple of coats on the walls to help suck it up

Edited by IronmanG, 24 December 2021 - 09:11 AM.





3 user(s) are reading this topic

0 members, 3 guests, 0 anonymous users

Mini Spares