I am having a problem with algae in my attic and noticed your product Boracare. Would this product kill what is currently growing? If so, does the ‘appearance’ of algae on the wood also disappear or would I need to brush the rafters off?
Finally, is Boracare toxic to humans or animals? Would we need to vacate the home for any period of time after spraying?
Thank you for your help!
First, are you sure it’s algae in the attic and not mold? Algae generally needs sunlight of some kind to grow and attics are mostly dark so I’m thinking you might actually have mold instead. However, if you have algae growing healthy on the outside roof above, it could make it’s way into the attic so this could be the case. I just want to point out the difference in what you should do if it turns out to be Algae and not Mold.
If it’s algae in the attic, I would do a good inspection on the outside to see if it was growing on the roof shingles. This would be a common place for algae to take hold. To get control of the problem, you’ll need to treat the outside shingles with ALGAE KILLER first. This treatment should be done 1-2 a year if it keeps growing back. There is no real schedule you must follow; keep a watchful eye on the area and treat as needed.
On the inside, the Boracare would take care of either Algae or Mold. As our ALGAE AND MOLD CONTROL article explains, Boracare will penetrate the wood and make it impossible for such growth to occur. It’s boron based, which is very safe, and once applied any mold or algae will die off in a few weeks. In some cases I’ve seen the dead mold flake off; on some decks and other wood that had bad problems the dead growth had to be scraped or power washed off when the homeowner didn’t want it to be visible.
As for your safety concerns; both products are very safe. The Algae Killer is actually organic. This means it bears the “organic gardening” logo so you know it’s been certified for such use and only the safest products meet these standards. Boracare is close; it uses boron as the active and for the most part is very safe around mammals like people and pets. You wouldn’t have to vacate the house for the treatment. If you follow the guidelines in our SAFE CONCENTRATE USE VIDEO, you’ll learn all the common safeguards needed to do the work in the home without posing a danger to the occupants.
In summary, if you treat the attic with the Boracare, you’ll be able to kill either mold or algae. If it’s really algae growing and it’s originating from the roof, get that area treated with the Algae Killer to make sure it doesn’t come back.