Bora-Care would be a great option but it does need to be put on raw wood to get the full effect.
You want the wood to be dry when you are applying Boracare. It will need to be able to soak into the dry wood.
There is no need to reapply Bora-Care in this situation. The active ingredient in Bora care absorbs through wood once applied.
You do not need to paint over Bora-Care as it soaks into the woods. However, you are welcome to once it has dried.
If the covered parking area is constructed of wood, it needs to be painted or sealed within 6 weeks after a treatment of Bora-Care. Per the product label, it is important to allow the treated wood to completely dry at least 48 hours before applying any protective topcoat.
Bora-Care is not applied to live trees. You may want to check with your local extension office. Once a tree is already infested, the goal turns to protecting the surrounding trees for most borers.
If BoraCare is oversprayed onto vegetation, it is possible the plant(s) will die. It is recommended to prevent overspray by using tarps to cover the area, spraying on a non-windy day, at least 10 feet away from edible vegetation, and avoiding runoff to these areas. Any edible vegetation that comes into contact with this product should be discarded. Please be sure to review the product label for more information.
Bora-Care with Mold-Care per manufacturer has to be used at the 5:1 ratio to be effective for mold treatments and it cannot be used at any other rates.
You can apply copper naphthenate over the application of Bora-Care with Mold-Care as long as you allow it to completely dry before doing so. Although manufacture advised there is no need for that to be done as the Bora-Care with Mold-Care would be enough to provide protection.
Bora-Care will only penetrate the wood that it is applied to directly.
Per Nisus the manufacturer, if no mold is present there is no need for Boracare with Mold Care. If no wood decay is currently present and its preventative measures only, regular Boracare at the 5:1 preventative rate is all that is needed. You could use the 3:1 label rate for the wood if you prefer, but according to Nisus it is unnecessary unless there is activity of fungi now.
Bora-Care is safe if it is applied to raw wood when the pets are not present. Once the treated surfaces have been completed, it is safe for them to return to the treated areas/surfaces.
Once Bora-Care has been mixed it should be used or discarded within 24 hours.
No, you cannot use Bora-Care to treat your bee hives.
The Bora-Care will not penetrate the finished sides, you would need to treat the unfinished side with two coats of the product. You will probably need to wait about 20 minutes to an hour (depending on penetration speed) between coats. It will seep as far into the wood as it can, so just depending on how deep that finish you used on the other sides went, will determine how far the Bora-Care can penetrate.