For non porous materials like tile try using undiluted white or apple cider vinegar instead.
Remove mildew from wood ceiling.
Use bleach on raw wood.
Zinzer makes several types.
If its just a darkening of the ceiling and its really only a sand texture you can clean the surface using a bleach and water solution to remove any loose mold growth let dry then paint using a good quality mold resistant primer.
Porch ceilings typically have some form of mold growth on them.
To remove mildew from wood cabinets paneling or furniture vacuum the loose spores with the soft brush attachment.
Mildew is a surface mold that grows in warm damp places like basements laundry rooms and shady porches.
Vacuum the area to collect loose spores.
Just wash the affected area with the vinegar then dry it completely.
Wood isn t as porous so the mold tends to stay on the surface.
If any kind of porous material popcorn wood drywall etc has been used on your ceiling then you will not be able to clean it properly.
The mold will simply come back quickly later.
Examine the material used to construct the ceiling.
Also depending upon how much mold or mildew it is that you have.
Let the baking soda penetrate the surface then wipe it away.
Then clean small areas using a well wrung cloth dipped in a few squirts of.
That is why it is important to remove the mold from the ceiling as soon as possible.
Don protective gear an air mask is a must.
Additionally if the mildew has found its way into the spaces between your ceiling tiles an expendable toothbrush can be a surprisingly effective tool in scrubbing it away.
Use soap and water on painted or stained wood.
Mold isn t as difficult to remove from a wood ceiling as it is from a drywall ceiling.
To test if the wood is covered with mildew or just dirt dab the stain with a cotton swab dipped in household chlorine bleach.
You will have to remove the affected portion of ceiling and replace it.
The porch was completely enclosed and covered with heavy blinds which trapped the reoccurring humidity and sometimes moisture.
Mildew begins as a gray or white powdery colony and eventually turns black or brown.
Cleanup involves a trip to the attic and may.
You can also stand on the floor and use a long handled mop for scrubbing your ceiling if standing on a stepladder is problematic for you.
You would think any wood paneling in an outdoor space would get enough fresh air to keep mold and mildew growth at bay but that wasn t the case with the cedar wood ceiling in our outdoor porch.
