I have fungi growing on the old bricks of my inglenook fireplace. I have used a moss and fungi killer spray, but after 10 days they are back.
What advice do you have to treat this problem?
If you review our MOLD CONTROL ARTICLE, you’ll see we list several options for this type of problem. The first treatment would involve a MOSS AND FUNGI KILLER. But as our article explains, this is many times not strong enough. At this point you need to move up to the next level of fungi control.
I suggest you get some MOLD BLASTER and start using this to see how long it holds off the fungus. A good treatment should last 2-4 weeks and maybe longer. If you apply it and find the fungi returns inside a month, do another thorough application and then apply either the TIMBOR or the BORACARE over the top 1 day later. This should keep it from growing for sure. Timbor will tend to leave a slight white residue so you might want to use the Boracare if you’re treating where the brick will be visible out in the open. And remember, as our article explains, fungi generally prospers where it has a direct line to moisture so making sure the brick are as dry as possible will help solve the problem as well.
Here are direct links to the information and products listed above:
Mold Control Article: http://www.bugspray.com/catalog/products/page1621.html
Moss and Fungi Killer: http://www.bugspray.com/catalog/products/page1623.html
Mold Blaster: http://www.bugspray.com/catalog/products/page1625.html