Green Glue Soundproofing on outside walls and sheathing

If you're re-siding or re-constructing the outside walls ofsoundproofing with Green Glue is something to
your house, it would be a great idea to double up onseriously consider. There is one small draw back and
the plywood sheathing and add a layer of the Greenthat is that the Green Glue is a polymer and if it
Glue damping compound between the layers offreezes it can temporarily lose it ability to dampen the
sheathing. The Green Glue would damp the sheathingsheathing. However, the good news it that once the
and stop the transmission of traffic or other outdoortemperature climbs back up above freezing, the
noises from entering your home. This would alsopolymer returns to its original state.
preclude you from having to soundproof the insideOnce you have applied the Green Glue to your
walls especially if you home has plaster walls. Plastersecond layer of sheathing, you would then either put
is not a very good soundproofing material, so if youup a vapor barrier or simply add the wood siding or
have already soundproofed the sheathing on the outershingling to the outer walls. It doesn't matter if screws
walls there is no need to disturb the inside plaster ofor nails pierce through the Green Glue, as is not a
drywall walled walls.soundproofing membrane, but rather a
Once you have removed the old siding or shinglessound-deadening agent.
from the outer walls of the house, you should be leftGreen Glue is a great way to soundproof your home
with a plywood sheathing that is there as a vaporfrom the outside and is an extremely effective sound
barrier and a solid backing for shingles of vinyl siding. Idamping agent wherever it is used.
suggest adding another layer of drywall sheathing butIf you are in the process of remodeling your home and
applying a layer of Green Glue between the 2 layersthat remodel includes the outer areas of the house, the
of plywood. If you apply 3 tubes of Green Glue tousing the Green glue is an excellent way to get some
each 4' X 8' sheet of plywood, you will increase thegreat soundproofing without re-constructing inside walls
STC value of your walls by at least 50 STC points.of the house.
Most people don't consider adding a soundproofingPlease feel free to real my other articles regarding
agent to the outer walls of their houses, but if you areGreen Glue and any of our wonderful soundproofing
in the process of re- siding you house, theProducts. This is Dr. Bob…Out!!