We understand that the Boracare label can be tricky to follow. The text is referring to a gallon of undiluted solution, which makes 2 gallons of finished solution, while the chart is referring to diluted solution. So, one gallon of concentrate makes 2 gallons of finished solution when diluted at a 1:1 ratio, and that total amount of 2 gallons of finished solution covers 1,600 square feet (800 per gallon of dilution).
We do not recommend to fog for termites in an attic. It will not penetrate the raw wood. In this case we recommend to treat using Boracare. Boracare will penetrate up to 4 inches into the wood and will last the lifetime of the wood. You can paint it, spray it, or foam it onto the raw wood.
Powder post beetles live inside wood and can remain dormant inside wood for up to 30 years. Foggers will be unable to penetrate the wood to contact the beetles, and it certainly won’t give any sort of long term residual to product your wood when they beetles come out of their dormant stage. Bora-Care is the best product for powder post beetles. It is sprayed/painted on raw untreated wood. It will soak through to the center of the wood and protect the wood for the lifetime of the wood.
We arent sure we understand what you mean. Boracare is meant to be mixed with water and applied with either a hand pump sprayer that you create the pressure with yourself and spray on until wet but not dripping, or applied with a paint brush or roller. For large beams you would need to be applying it in one of those options and doing two coats to all sides if the beams are more than 5 inches thick in each direction.
Bora-Care should be sprayed on all sides of raw wood for the best results.
Boracare will not damage any type of metal.
Bora-care is made for treating raw wood, if the wood has been painted, stained or treated in any way it will not absorb into the wood and therefore will not protect your wood.
It is safe to put insulation back once surfaces treated that have been treated with Bora-Care are completely dry. You can either use the same insulation or replace with new.