Hello,
we are currently building as well. In the next few weeks, the screed will be installed.
Our builder now wants to place three construction dryers in the house for two months afterwards. However, we would prefer to avoid this and get rid of the moisture by ventilating. The builder advises against this.
Can anyone give us advice on whether construction dryers are really necessary or if it is possible to manage the moisture without them?
Thank you in advance for your opinions.
Best regards,
steffi23
we are currently building as well. In the next few weeks, the screed will be installed.
Our builder now wants to place three construction dryers in the house for two months afterwards. However, we would prefer to avoid this and get rid of the moisture by ventilating. The builder advises against this.
Can anyone give us advice on whether construction dryers are really necessary or if it is possible to manage the moisture without them?
Thank you in advance for your opinions.
Best regards,
steffi23
B
basti230910 Jan 2012 16:04The house is 12 years old and could basically stay as it is, but we want a different room layout, so renovation work is needed. Once the walls and doors are removed, it gets damp and cold, especially with this kind of weather.
C
Christian AHS19 Nov 2013 17:57Hello everyone,
to avoid starting a new thread, I’m reactivating this one.
Last Tuesday/Wednesday, the cement screed was installed/poured at our place – so it’s almost a week old today.
I briefly went inside on Sunday to air it out, and yesterday my wife did the same during the sunshine.
We don’t have underfloor heating, and the regular heating system is expected to be fully installed in 1-2 weeks.
Currently, it’s foggy/overcast and 1-4°C (34-39°F) outside.
I’ve read a lot of different information – supposedly, the screed should first release moisture just through ventilation for 2-3 weeks before any heating is applied?
With the current weather outside, no moisture seems to be released or absorbed at all.
Dehumidifiers apparently only work down to about +5°C (41°F)?
Do you maybe have any tips on how I can get more moisture out of the house? Should I wait until the 2-3 weeks are over and then run construction dryers and fan heaters in two shifts?
Best regards
Chris
to avoid starting a new thread, I’m reactivating this one.
Last Tuesday/Wednesday, the cement screed was installed/poured at our place – so it’s almost a week old today.
I briefly went inside on Sunday to air it out, and yesterday my wife did the same during the sunshine.
We don’t have underfloor heating, and the regular heating system is expected to be fully installed in 1-2 weeks.
Currently, it’s foggy/overcast and 1-4°C (34-39°F) outside.
I’ve read a lot of different information – supposedly, the screed should first release moisture just through ventilation for 2-3 weeks before any heating is applied?
With the current weather outside, no moisture seems to be released or absorbed at all.
Dehumidifiers apparently only work down to about +5°C (41°F)?
Do you maybe have any tips on how I can get more moisture out of the house? Should I wait until the 2-3 weeks are over and then run construction dryers and fan heaters in two shifts?
Best regards
Chris
The person from the rental service didn’t give us the construction dehumidifier after learning that our cement screed has only been in for 9 days. The site manager also said it needs to dry naturally for at least 14 days. Only after about 3 days should you even start ventilating.
Air exchange with tilted windows: 0.4%, 10 minutes of shock ventilation provides 40%!
Still, we set up a hygrometer: on sunny days (early November) we managed to reduce indoor humidity by 20% in 10 minutes, but in recent days only about 3% during the day, and it even rises again in the evening.
Construction dehumidifiers work from 5°C (41°F) upward, preferably higher, yes.
What does your site manager say about this topic???
Air exchange with tilted windows: 0.4%, 10 minutes of shock ventilation provides 40%!
Still, we set up a hygrometer: on sunny days (early November) we managed to reduce indoor humidity by 20% in 10 minutes, but in recent days only about 3% during the day, and it even rises again in the evening.
Construction dehumidifiers work from 5°C (41°F) upward, preferably higher, yes.
What does your site manager say about this topic???
C
Christian AHS19 Nov 2013 20:49So, our previous site manager was sidelined due to lack of competence.
The new site manager has to fix his mistakes and can hardly keep up.
That’s why I’ve been asking the craftsmen myself – you usually get better information that way.
The screed installer said I can come in on Saturday.
Some idiot with shoe size 30–32 already managed to step onto the screed on the second day – I took photos – luckily it’s just a 3D imprint – only dirt.
However, the room is secured with a construction door – I wonder which craftsman brought their child or maybe let a neighbor’s kid in??
I only entered on Sunday, after checking the door with my fingernail and then with a key to see if it would still move.
I requested the ventilation plan again today.
Does airing out briefly even make sense with this fog outside?
The air must be extremely saturated, right?
Regards
Chris
The new site manager has to fix his mistakes and can hardly keep up.
That’s why I’ve been asking the craftsmen myself – you usually get better information that way.
The screed installer said I can come in on Saturday.
Some idiot with shoe size 30–32 already managed to step onto the screed on the second day – I took photos – luckily it’s just a 3D imprint – only dirt.
However, the room is secured with a construction door – I wonder which craftsman brought their child or maybe let a neighbor’s kid in??
I only entered on Sunday, after checking the door with my fingernail and then with a key to see if it would still move.
I requested the ventilation plan again today.
Does airing out briefly even make sense with this fog outside?
The air must be extremely saturated, right?
Regards
Chris
Christian AHS schrieb:
Does airing out the room briefly even make sense when it's foggy outside?
The air must be completely saturated, right?
Regards
ChrisI’d say yes, it actually helps even more... since we just finished airing the room out and are waiting for the underfloor heating to take effect, we’ve done some reading on the topic... but with the current level of humidity, I’m not really sure either.
However, using a dehumidifier after 14 days – it really pulls the moisture out – is satisfying to watch, if you’re patient.
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