Bathroom and Kitchen Mold in Gettysburg, PA
Our local mold specialist looks at your bathroom or kitchen and will tell you if your fan needs a clean or replacement, or a duct run out through the wall.
Why Mold Grows in a Bathroom With No Window
Mold grows in a bathroom with no window because the steam from your shower has nowhere to go, so it hangs in the room until it finds something cold to settle on. That’s the ceiling right over the shower, or the outside wall behind it, because those are the coldest surfaces you’ve got. They stay damp between showers, and that’s all the mold needs to get going.
A lot of bathrooms in Gettysburg were cut out of a bedroom or the end of a hallway, so the room sits in the middle of the house without an outside wall to put a window in. If there’s no fan in there either, nothing you scrub off the ceiling is going to stay off.
Tell us if your bathroom has no window and no fan, because that changes what the fix involves.
What Pennsylvania’s Code Requires for a Bathroom Fan
Pennsylvania’s code requires either a window or a fan in a bathroom, and the window has to have three square feet of glass with half of it opening. If you’re going with the fan instead, it needs to move 50 cfm when you switch it on, or 20 cfm if you leave it running all the time. Cfm is just how much air the fan shifts in a minute, and anything rated below those numbers will run for an hour and still leave your ceiling wet.
You can check what you’ve already got by taking the cover off the fan, because the rating is printed on the housing underneath.
Tell us what the label says when you ask for an estimate.
Why Your Bathroom Fan Might Be Making the Mold Worse
Your bathroom fan is making the mold worse if it’s emptying into your attic instead of outside, because all it’s doing is moving the moisture out of a room you look at and into a roof space you don’t. Pennsylvania’s code is specific about this and says exhaust air can’t go into an attic, a soffit, a ridge vent or a crawl space, and that it has to go outdoors.
Installers do it anyway, because running a duct all the way out to a wall costs more than stopping at the attic floor, and the mold that grows on the roof boards takes a couple of winters to show up anywhere you’d notice.
If someone put a fan in and never told you where the duct ends, say so when you ask for an estimate.
Mold in crawl spaces and atticsWhat the Historic District Rules Mean for a New Vent
The historic district rules mean you need HARB approval before a new vent goes in, if the wall it comes out of can be seen from a public street or alley, and that holds even where no building permit is required. HARB reads your application and makes a recommendation, then Borough Council takes the final vote, and because HARB only meets once a month your start date runs on their calendar rather than your contractor’s.
Put the vent on a rear wall or a roof slope out of sight of the street and you’re clear of all of that.
Tell us which side of your house faces the street and the specialist can say which option you’ve got.
Why Mold Turns Up Behind Your Stove
Mold turns up behind your stove because a recirculating hood takes the grease out of the steam and then blows the steam straight back into the kitchen, so the moisture ends up on the wall behind the stove and on the cabinets either side of it. Pennsylvania’s code says a range hood duct has to discharge outdoors and can’t stop in an attic or a crawl space, and a ductless hood is only allowed where the unit is listed and labeled for it and the kitchen is vented some other way. For a kitchen the code asks for 100 cfm on a switch or 25 cfm running continuously, and a charcoal filter gives you neither of those because it never moves any air out of the room.
Take the filter out of your hood and look up, because if there’s no duct above it then your cooking steam has been staying in the kitchen all along.
Tell us what you find.
6 Places Bathroom Mold Turns Up First
Bathroom mold turns up first wherever the water takes longest to dry off. The open walls and the floor clear on their own after a shower, but a joint, a cold surface or a cupboard with the door shut holds the damp long after the rest of the room is dry, and that’s what decides where the mold starts.
Those six aren’t the only places mold grows in a bathroom, but they’re the ones you can get at yourself while the job is still small.
Tell us which of the six you’ve found mold on.
When Bathroom Mold Needs More Than a Clean
Bathroom mold needs more than a clean when it keeps coming back in the same place, because that’s telling you the moisture is still arriving and the drywall behind the paint is wet rather than just the paint. The EPA puts the line at about ten square feet, and past that it stops being a cleaning job, because a patch that size on a bathroom ceiling means the board itself has taken on water and won’t dry out on its own.
Clean the surface of wet drywall and you’ll get a few weeks out of it before the same stain comes back in the same outline.
If you’ve cleaned the same patch more than once, say so when you ask for an estimate, because it changes what the specialist looks for.
Why Bathroom and Kitchen Mold Quotes Vary So Much
Bathroom and kitchen mold quotes vary so much because the money is in the ventilation rather than the cleaning.
Fan already ducted outside
The job is the mold plus a check on the fan.
No fan at all
You’re paying for the unit, a duct run out to a wall or the roof, and possibly a wait on HARB before any of it can start.
Kitchens split the same way, because turning a recirculating hood into a ducted one means opening up a wall or a ceiling to get the duct out of the building.
Tell us whether your bathroom has a fan and whether you know where it vents, and the quote comes back close to the real number.
What mold work costs in GettysburgBathroom and Kitchen Mold Questions
Does running the fan longer fix the mold?
Running the fan longer helps, but on its own it won’t fix the mold. Twenty minutes after a shower is plenty, as long as the fan is big enough for the room and the duct ends up outside. A fan that empties into the attic is just moving the moisture somewhere you can’t see it, and one rated under 50 cfm won’t clear the room however long you leave it going.
Can I paint over bathroom mold with mold-resistant paint?
You can’t paint over bathroom mold with mold-resistant paint, because the paint is made to slow new growth on a surface that’s already clean and dry. If the drywall under it is damp, the new coat will lift in the same place it lifted last time, so the moisture gets dealt with before anything gets painted.
Is black mold in a bathroom different from other mold?
Black mold in a bathroom isn’t different from any other mold as far as the work goes. The dark growth in your grout and caulk is there because the surface stays wet, and it gets treated the same way whatever color it turns out to be. A test will tell you the species, but the species doesn’t change the job, which is getting the moisture out and taking out whatever the water has damaged.
Get a mold removal estimate
Tell us what you've found and our local mold specialist will come back to you the same day to arrange a look. Comparing it against another quote? The cost guide shows the national ranges for the same size of job.
Call now (223) 747-0678 Mold remediation in Gettysburg and Adams CountySources: US EPA, Mold Remediation in Schools and Commercial Buildings, Pennsylvania Uniform Construction Code (IRC R303.3, M1501.1, M1503, M1505.4.4), Gettysburg Borough Historic Architectural Review Board.