Damprid

[sokhapkin]

How is it better to use damprid in a trailer while in storage in humid climate - with the roof vent open or closed?

[gordon2]

Its kinda like using the A/C with all the doors open. And like my mom used to say to her children, "Are you trying to cool down the entire planet?" I wonder how many Damprid containers it would take to reduce the outdoor humidity from 98% in the south....

[sokhapkin]

That's my thought too, but an occasional ventilation might be useful. Or not?

[bsedwebt]

get a dehumidifier - works wonders - the damprid stuff is not very effective but will work as designed in a closed situation

[gordon2]

Originally Posted by sokhapkin

That's my thought too, but an occasional ventilation might be useful. Or not?

Constant, not occasional (IMHO). Ventilation, and putting cushions in my house when the camper is stored over the winter, is all I have used for three and a half years and it seems to be working.

[sokhapkin]

Originally Posted by gordon2

Constant, not occasional (IMHO). Ventilation, and putting cushions in my house when the camper is stored over the winter, is all I have used for three and a half years and it seems to be working.

I'm talking about humid Florida summers...

[gordon2]

Originally Posted by sokhapkin

I'm talking about humid Florida summers...

And I'm talking about humid North Carolina summers (Piedmont area, south end of the state).

You see when the temps go down at night, the relative humidity goes up. In the morning when the humidity goes back down outside (with the heating of the day), you will have trapped night time air in the camper and it is usually more humid than the outdoor air by mid-morning. Unless you ventilate that is. Now if you wanted to only ventilate when there is a differential you could do that. You would be closing up and opening up the camper multiple times a day.. quite a pain.

But if ventilation is not doing enough, then seal it up an use a dehumidifier. Some people swear by Damprid instead of a dehumidifier but I have my doubts about the effectiveness, even vs. using ventilation.

[Paul O.]

Originally Posted by sokhapkin

How is it better to use damprid in a trailer while in storage in humid climate - with the roof vent open or closed?

I would close the vent and all windows tight. But if it is not under a roof, and there are even small leaks, the damprid may not keep up with it.

[Mr B from BC]

here on the BC's coast with the rainy vancouver island climate i found that dry-z-air/damprid didn't work at all in the low temps and the super humid winter conditions of constant rain

i found that a dehumidifier works the best to keep the trailer dry inside during unheated storage outdoors over the off season and i just leave it to run on shore power

in the cold of winter if there is no heat running in your trailer to keep it at 'room temperature' then the dehumidifier must be a commercial grade type unit (ie as typ used by flood restoration crews) with a 'hot gas bypass defrost cycle' to still work at temps down to as low as 32 fareheit

such a dehumidifier is not going to be cheap but i don't want to deal with arranging heated storage at a facility

all the best

[Glenn Baglo]

My trailer has been living under a cedar tree for ten years in North Vancouver ( under the "Capilano Cloud". I use two Dri-Z-Air containers, emptying them every couple weeks. From time to time, I'll run an electric heater for an afternoon.
Cushions are all standing up and cupboard doors are open. Fridge door is ajar.

I've had no mould issues.
That's not to say that a dehumidifier might not do a better job.

[Mr B from BC]

that's awesome, wish i could have that easy to keep dry
is you escape trailer optioned up with the upgrade insul

[Glenn Baglo]

Originally Posted by Mr B from BC

that's awesome, wish i could have that easy to keep dry
is you escape trailer optioned up with the upgrade insul

Mine is 2008. No options for extra insulation or double pane windows that I recall. I got tinted windows as option.

[slowpat]

When I lived on the Wet Side of the mountains in the same climate as mentioned by the BCers, I put a hang up bag of Damprid in the closet and had a small dehumidifier going in the rest of the trailer. My trailer was in an unheated shop during the winter. The trailer was closed up. No problems.

Damprid comes in many forms. One is a bag with a hanger hook on it.

Now I live on the other side of the mountains in what is technically desert. I cannot find Damprid in the stores here. Guess it would be redundant.

[ststefan]

I do the same as Glenn Baglo with 2 dri-z-air. '79 Boler in Maple Ridge, B.C. No mould.

[sharpstick]

Originally Posted by sokhapkin

How is it better to use damprid in a trailer while in storage in humid climate - with the roof vent open or closed?

It will only work when closed. And not even that much. I'm in Florida and use a plug in dehumidifier. I usually use the compressor one to get it dry, then lower power peltier one to maintain it.

[Gish]

During storage in hot humid summers I open the vent a crack to have the hot air escape and have a large damp rid container on the floor of my 2010 Casita. All cabinets & closet door is left open. The front of the Casita gets the full brunt of the sun. Cushions are cocked on an angle & pillows & quilts are removed. I have not had any issues with mold or mildew.