George from Santa Clara writes
I want a foam that I can inject into a cracked garage floor. I also would like to inject some into studs in my garage that have been damaged by subterranean termites. (Note: I have had the perimeter soil treated with Altriset, but would like to treat soil where the floor is cracked also.) I am looking for a product with residual and transferable effects. Is PT Alpine Foam RTU the best product for both locations, or is there a better one?
If you are trying to treat soil under a cracked garage floor a foam is not the correct option for application. You would need to drill holes into the concrete every 12 inches along the wall the garage shares with the home, and anywhere else you suspect termite activity in the soil. Once you drill the holes you can use either the same liquid termiticide you used around the perimeter, or any other of your choosing, and apply roughly 1/2 gallon of solution per hole. This is the only way to sufficiently coat the soil and provide an adequate barrier. Foams like the PT Alpine Foam RTU are for spot treating where active termites are currently present in a wall void and could be used for your garage application. Keep in mind, if there are no termites behind the wall where you apply the foam you are wasting product. It is not a wood bonding chemical and will not hold up over long periods of time for protection; it's just used for active spot treatments. You also want to be sure you are only spot treating where active insect nests are located with the foam and not filling it stud to stud, or floor to ceiling.
Answer last updated on: 03/03/2021
