This is a portion of getting our house to be more energy efficient by decreasing the amount of cold / warm air that leave the inside of the home in summer and winter. Expandable foam is a great product for sealing larger gaps that can’t be filled with caulk.
I kind of had an idea where some problem areas might be, but I did a full walk around outside and the inside walls that touch external walls. These were the areas I found that needed fixing:
Gap around an exterior spigot.
3 holes where a contractor pulled electrical
from the inside to the outside porch.
Gap on the side of the house.
Gap around the plumbing
under the kitchen sink.
I used Dap Multi-Purpose Foam Sealant to fill in the gaps and holes. This was about $6 at the Depot.
Dap Multi-Purpose Foam Sealant
Filling the gaps and holes was just a matter of shaking the can for a minute, inserting the tube into the nozzle, jamming the tube into the gap or hole and letting her rip.
About To Fill Gap Around Spigot
It was a matter of minutes to seal the gaps with the foam. It stays in it’s wet form for a few minutes allowing you to scoop off any excess.
If the gap is fairly large you might have to apply multiple coats to bridge the area. I had to do this with the gap on the side of the house where the stucco met the roof.
Filled Side Of House Gap
Use water to clean-up. Make sure to clean the tube and nozzle area of the can if you plan to use it again.