Injectible foam insulation ??

[dcs13]

Has anyone done the injectible insulation on an existing home. Heard an ad for foammywalls.com .Their site looks interesting. Product looks like it works well. Not sure I like them drilling a bunch of holes in the mortar, and am curious on the costs...Anyone here have any info ?

[Blackpony]

I would be afraid of them putting too much and it expanding enough to mess the walls up...

[8mpg]

I would be afraid of them putting too much and it expanding enough to mess the walls up...

that is why they have insurance. Also, the injection foams are already expanded foams when injected.

[FastFox]

I had it done on my 2 story 2800 Sq Ft house. The product is great. With my AC in the off position from Friday morning until late Sunday night in Mid August, the inside temperature was at about 85 degrees and the outside temp was about 106. My average bill from Reliant is $ 118.00. I am all electric and have a hot tub, a freezer and 2 refrigerators. The foam is not expanding so as to blow out walls. The hols they drill can hardly be seen. I asked the installer to give me a couple of houses that I might go see and talk to the owner. Both jobs looked nice and the customers were very happy. I say check it out and go for it. I had them blow my attic at the same time. My price for all was $ 2500.00. Also the sound deadening is goo too.

[dcs13]

What company did you use ?

[8mpg]

$2500 seems cheap.

[Vertnut]

Has anyone done the injectible insulation on an existing home. Heard an ad for foammywalls.com .Their site looks interesting. Product looks like it works well. Not sure I like them drilling a bunch of holes in the mortar, and am curious on the costs...Anyone here have any info ?

First, how old is your house and what makes you think there's no insulation inside the walls? I would probably spend money somewhere else first. Most heating/cooling loss is through windows and ceilings (into attics). Good windows and R-38 (16"-18") blown into your attic will make a lot more difference than shooting foam into the walls. That foam will be "hit-and-miss" if there's anything at all in there. New door seals and tubes of caulk are cheap and easy to do. You'd be surprised how many people never think to caulk around windows, soffits, and thresh-holds. Shooting foam into the walls would be way down the list for me.

[FastFox]

Vertnut.....I have double windows, energy efficient heat and cool, energy efficient and wrapped water heater that is on a timer, storm doors, felt and rubber seals around steel insulated doors, vented attic with a 36 inch fan on a timer, and every light bulb is the new energy efficient type. My house was built in 1978 and mineral wool bats were used. The bats had settled to the bottoms of the walls and was settled in the attic. I went and watched a demo of the foam being shot into a wall with insulation already there. The foam displaces the product already there. I know that, because the wall sample was shot behind clear plexi glass. I did my research before I bought. I forget the name of the company, but it was out of Waco. Look up Foam My Walls and search for Waco. I will find the name and post it.

[Vertnut]

Vertnut.....I have double windows, energy efficient heat and cool, energy efficient and wrapped water heater that is on a timer, storm doors, felt and rubber seals around steel insulated doors, vented attic with a 36 inch fan on a timer, and every light bulb is the new energy efficient type. My house was built in 1978 and mineral wool bats were used. The bats had settled to the bottoms of the walls and was settled in the attic. I went and watched a demo of the foam being shot into a wall with insulation already there. The foam displaces the product already there. I know that, because the wall sample was shot behind clear plexi glass. I did my research before I bought. I forget the name of the company, but it was out of Waco. Look up Foam My Walls and search for Waco. I will find the name and post it.

I didn't say to not do it, but that for me, it's not top priority. If it works for you, that's great! Understand, there are 10 year old "double windows" that are pretty worthless. I'm talking a vinyl window or a new aluminum unit with a "thermal break" in it. If the inside window frame is not the temperature of your house, it's not effective. There should be little (or no) transference of temperature from outside to inside. I worked pretty closely with an "Energy Star" engineer/designer/inspector while building houses, and learned quite a bit about what's truly cost "effective" when it comes to energy efficiency concerning houses.

[dcs13]

House is about 13 years old. I know there's nothing more than the 4x8 sheets of thin foil insulation behind the brick. Windows are fine, double pane. I blew in PLENTY of insulation in attic. I just think the walls should be done to help out the overall. Yes $2500 seemed cheap.. I did watch the videos at foammywalls.com . I was impressed. Just scared of all those holes in the mortar.

[Vertnut]

Mortar holes are not a big deal, and certainly shouldn't be a deal-breaker, but a 13-year-old house should have plenty of insulation in the walls. If you're in a city that has inspections, any house built around 2000 will have insulation in the walls.

[Randy]

Novice question here, but I'm assuming you're talking about the parameter walls only? I would like to do interior walls for sound deadening since my new home has none. Think it would be worth it or do you have another suggestion to add some sound proofing to the walls.


Thanks

[dcs13]

Mortar holes are not a big deal, and certainly shouldn't be a deal-breaker, but a 13-year-old house should have plenty of insulation in the walls. If you're in a city that has inspections, any house built around 2000 will have insulation in the walls.

There is not batt insulation in the walls, only those 4x8 sheets of very thin insulation. House is not in the city.

[8mpg]

Randy... if you are looking to get sound deadening, it may be cheaper to have dense pack blown in cellulose for the inside walls. Either way for interior walls, they will cut holes in the sheetrock.