BOAT CABIN STINKS ? MILDEW SMELL < HOW CAN I REMOVE SMELL ?

al1026

Petty Officer 2nd Class
Joined
May 17, 2007
Messages
101
Generally on this forum asking engine advice, This is a twist for me . MILDEW SMELL
​Boat was laid up months for new engines
​Boat on a trailer tilted up as high as possible, drain plug removed
​Kept outside Canvas cover from windshield over transom
​Entire bow from windshield forward was not covered
Boat is a 2860 Regal Commodore .
​Combination leather & cloth
​All cushions have zippers and upon inspection of foam noticed it was covered by a layer of clear plastic ( like slip covers )
​Did not remove , but will if I must and dry clean, but assuming foam is dry .
​Entire cabin ceiling is vinyl
​Aft cabin has a tight woven marine grade carpet on walls & ceiling
Marine grade carpet main walk area

Boat was 125 miles from me during engine repairs, distance made it difficult too check and maintain boat. .
On one of my visits too engine shop , I went into cabin and I did smell a mildew smell , but never dealing with mold or mildew I shrugged it off thinking I will clean it along with a good detailing of boat upon return. I put 2 canisters of damp rid in cabin
​Months of daily Florida rains, HOT cabin, Irma rains, Breeding grounds for mold & mildew

​Engines completed . Launched last week . New long blocks. Runs great
4 family members helped with outside detailing and cabin detailing
WOW was surprised too see mold damage
Smell that has not gone away after hours of cabin detailing, mold cleaners, Mold killing chemicals, over the counter items . Freebreze , Star brite , etc
I​7 Drenched beach towels in a cabinet that had mold growing on towels and that grew onto the cabinet wall, so I must find were the leak is . But first I must
​correct this raunchy smell ,
​Wife & I sleep aboard 2 days of every week and she has breathing issues , I must get this done properly
Yesterday we went out, she did not go into cabin. She sat on deck and complained that she was able too smell a mildew smell coming from cabin on deck

I must get rid of this mildew smell . Any over the counter chemical or should I CALL THE GUY ?

​Thanks as usual

 

crazy charlie

Vice Admiral
Joined
May 22, 2003
Messages
5,501
Had same some years back.Here is what you need to do.Get old fashioned bleach.Not the concentrated or superduper type.Just bleach.Areas inside cabinets should be saturated with a sprayer like the pumpup insecticide type concentrating on the actual mold.If the closet/cabinet has a ceiling in it make sure to saturate it.Start in the areas worst affected by the mold.The bleach will kill the mold and spores.Mold is a living organism and you need to kill it entitely or it will continue to grow in the places you miss.Keep in mind that you may bleach out the color of certain fabrics though most marine fabrics and carpet seem to be immune.Do a test area.The carpetlike headliner (if it is the same I had) should hold up fine.Wipe the entire vinyl headliner with a hand towel saturated with bleach.If that boat has an aft cabin with under floor storage ,spray the entire area.Get all of the cushions off of the boat and store them in a closed room at home.See if that room smells like mold the next day.This will let you know if the cushions also need attention.The carpeting will need shampooing .Add Borax to the carpet cleaning solution.Avoid things that mask the odor like fabreeze and lysol.Turn on a/c 24/7 to dry out the cabin.Add a dehumidifier to get it bone dry.Put fans everywhere you treat with bleach to aid in drying.Pull all life vests off the boat and check them.The obvious is locate the source of the water intrusion.The cushions that were wrapped in plastic should be checked for dampness.The plastic wrapping is to keep out water/moisture but it can also trap it.bleach WILL work,I guarantee it.Make sure everything is opend up to the air while doing this.The smell of bleach fumes can get to ya so ventilation is key.Also pout bleach down your drains and in your bilge.Keep us posted.I eliminated it totally but it wasnt a simple process.I tried ozone generator but that is better for a musty smelling car or closet where there is no moisture.Im sure I will think of more steps that I took.Good luck!!Charlie
 

crazy charlie

Vice Admiral
Joined
May 22, 2003
Messages
5,501
You might also try plain old white vinegar. Bleach will take care of mold/mildew on hard surfaces but doesn't work well for porous materials. Here's a link or two about using vinegar & some other non-toxic cleaners. Good luck!

https://www.mnn.com/your-home/at-home/stories/kill-mold-naturally-5-eco-friendly-ideas

http://moldpedia.com/mold-removal

I found bleach to work extremely well on pourous surfaces and found vinegar to be hardly effective at all,especially on severe cases basically useless
 

Old Ironmaker

Captain
Joined
Dec 28, 2015
Messages
3,050
I hate to say it but sometimes one needs to bite the bullet and call " the guy." The guy as in a Professional Mold Remediation company. I know I would try to clean the Bejeezus out of it myself to save some cash but I would never get a good nights sleep wondering if I got it all out especially with my wife's respiratory issues as well. There still can be mold even if you can't smell it. When I gutted a bathroom once and I was very surprised to find the walls behind the tub and shower surround black with mold spores, we never ever smelled anything amiss. It was a weekend get away cottage on the lake and they always have that "cottage" smell being locked up for weeks at a time but would air it out and all was fine, so I thought. Once I tore out all the drywall and dimensional lumber my wife noticed her dry cough got better and was using her puffer less. The more I tore out the more mold I found. It wasn't as bad as the bathroom but I found mold 10 feet away going towards where the kids slept. Young children are the most susceptible to Black Mold and those with respiratory issues. I had the place checked by a Mold remediation company and they cleared the place. They did find some mold in some attic insulation where there was a small leak in the roof at the chimney stack. I don't know how they checked as I wasn't there but they did. We have bought a few places since then and I get a mold inspection done. I was p'd at myself for not doing it sooner. Often harsh chemicals will mask the dank smell and that can be very dangerous. The task is to not only get the stench out but the prime goal is to kill the mold. If it's as bad as you think I wouldn't DIY it, your decision.

I would ask why the boat was subject to rain if it was at a professional marine dealer, regardless everyone has a degree of responsibility to mitigate damages when doing a job for money.
 
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