Winter Storage Ventilation?

[BobSail]

We're new owners headed into storage for the first time. We will be using a covered, unheated, three-sided shed without power access in the Pacific Northwest. All fabrics (except the hull liner)will be removed, with cupboard doors and storage panels opened. I have read a number of different approaches to controlling humidity. Is it best to leave ports open for maximum air flow? Are "Dry-Z-Air" type dehumidfiers appropriate? And if so, does leaving ports open merely draw outside moisture into the cabin to the dehumidifier? I also read about moth balls for mildew control. Are they appropiate? Thank you all in advance for your thoughts.

 

[Steve O.]

Damp Rid

I use a powdered dessicant called Damp Rid. It's nothing but calcium chloride in a little basket that absorbs moisture and deposits it into the tub underneath. In your situation, with no power, I would use it and keep the ports closed.

 

[MrEd]

Good personal experience

I have had a similar storage situation for the past two winters (Nov-Feb). Although I'd expect you might have more of a moisture concern in the PNW, I ran into no problem with keeping things closed up normally. We opened storage areas, removed all the cushions, etc., and placed several open boxes of baking soda around the cabin. It's worked out beautifully. The marina staff cautioned about leaving gaps for ventilation since critters also look for comfy, inside spots this time of year as well. I understand even screens aren't foolproof. Good luck.