Gearslutz.com - View Single Post - Who is using Green Glue in their studio build?

Bassmankr · 6th September 2007

Maybe the U.S. equivelant to what he is talking about would be the rolled roofing felt that is rolled out and stapled in place on a wood roof before the shingles get nailed on over it. Roofing felt is asphalt impregnated felt and comes in two variations here, 15 lb. and a heavier 30 lb. (more asphalt), in rolls and is a very cheap per square foot material. Looks like you would attach your first layer of drywall to the studs then staple in place the roofing felt as the next layer, then another layer of drywall goes over that and gets screwed to the studs. This certainly would be a cheap easy way to build a wall sandwich as well as carry over to building a ceiling. I could see building this type of sandwich using resilant channel metal studs between the main wall framing and the first layer of drywall also. Using the resilant channel metal studs would give a nice layer of air space and have less hard transfer points of wall attachment to the main studs.

So the wall would be from the studio going outward: drywall - roofing felt - drywall (all screwed to the resilant channel) - resilant channel (screwed to the studs horizontally) - studs (studs are filled with rockwool) - outside wall (more drywall if it's an interior partition wall). Say you use a standard 2 x 4 for the wall studs (3-1/2 inches width), you could use 3" rockwool in it and you would then have an airspace of 1/2 inch plus the 1 inch or so of airspace that the resilant channel forms for an airspace layer. This sounds like an easy buildout compared to other methods. Maybe use 1/2 inch drywall for one layer and 5/8 inch drywall for the other layer of the sandwich to keep cost in line and have different masses come into play. Is this what you have in mind? Who wants to try it?

I see the same principals used in typical wood floor home constuction here in the U.S. for the last 50 years. You have your subfloor, then they would use rolled roofing felt or rosin paper and attach the 3/4 inch thick wood floor strips over it. This allowed for wood movement and would keep the floor sqeaking down (isolating the floor). The principle is the same for the modern "Pergo" type floor, subfloor - 1/8 inch foam - Pergo, which allows material expansion/contraction and isolation. So the idea of an isolated sandwich is a common one.

6th September 2007	#25
Bassmankr Lives for gear Joined: Jul 2005 Posts: 1,903	Maybe the U.S. equivelant to what he is talking about would be the rolled roofing felt that is rolled out and stapled in place on a wood roof before the shingles get nailed on over it. Roofing felt is asphalt impregnated felt and comes in two variations here, 15 lb. and a heavier 30 lb. (more asphalt), in rolls and is a very cheap per square foot material. Looks like you would attach your first layer of drywall to the studs then staple in place the roofing felt as the next layer, then another layer of drywall goes over that and gets screwed to the studs. This certainly would be a cheap easy way to build a wall sandwich as well as carry over to building a ceiling. I could see building this type of sandwich using resilant channel metal studs between the main wall framing and the first layer of drywall also. Using the resilant channel metal studs would give a nice layer of air space and have less hard transfer points of wall attachment to the main studs. So the wall would be from the studio going outward: drywall - roofing felt - drywall (all screwed to the resilant channel) - resilant channel (screwed to the studs horizontally) - studs (studs are filled with rockwool) - outside wall (more drywall if it's an interior partition wall). Say you use a standard 2 x 4 for the wall studs (3-1/2 inches width), you could use 3" rockwool in it and you would then have an airspace of 1/2 inch plus the 1 inch or so of airspace that the resilant channel forms for an airspace layer. This sounds like an easy buildout compared to other methods. Maybe use 1/2 inch drywall for one layer and 5/8 inch drywall for the other layer of the sandwich to keep cost in line and have different masses come into play. Is this what you have in mind? Who wants to try it? I see the same principals used in typical wood floor home constuction here in the U.S. for the last 50 years. You have your subfloor, then they would use rolled roofing felt or rosin paper and attach the 3/4 inch thick wood floor strips over it. This allowed for wood movement and would keep the floor sqeaking down (isolating the floor). The principle is the same for the modern "Pergo" type floor, subfloor - 1/8 inch foam - Pergo, which allows material expansion/contraction and isolation. So the idea of an isolated sandwich is a common one.