How many of you insulate the interior walls of their home?

Greg1959

Well-known Member
When I built my home, every interior wall was insulated(even closets). First, to keep sounds lower. Second, to be able to close off a room if not in use, thereby cutting electric costs.

Anyone else do this?
 
The up stairs of this house has insulated interior walls. I did it for sound and the fact I knew that some rooms would be unheated.
 
(quoted from post at 21:54:56 12/04/16) When I built my home, every interior wall was insulated(even closets). First, to keep sounds lower. Second, to be able to close off a room if not in use, thereby cutting electric costs.

Anyone else do this?

Only in the master bedroom...the wall between the bedroom and the master bath. Lets me sleep while my wife is taking a shower in the morning....
 
I have insulated every wall and between every floor and ceiling joist. The basement is also insulated. We have thermopane windows with triple track storm windows over them.
 
I do it for myself. I'm a home remodeler and the only houses I've ever seen with insulated interior walls is in high dollar neighborhoods.
 
I did as well. The R value on the old was pretty low, so I put new insulation on the exterior walls, and used what I took out, and still in good conditon on the inside walls. I used the rest and just laid it down in the attic. I did it for several reasons, but mainly becuase I knew how loud kids can be when they become teenagers.
 
I am insulating all the walls in my basement . Did 1 inch pink on exterior . Half inch glued on interior block. Roll insulation between studs and ceiling . In floor heat in basement floor .
 
Greg,

We built a new home about 19 years ago and all the interior walls are insulated along with the floor joists. All the exterior walls are six inch including the garage and we heat that in the winter time to about 45 degrees so as to have any snow or ice melt off and dry by the next morning. You will never be sorry for extra quality you put in your home.
 
I did it when I remodeled the upstairs 6 years ago. The thought was for sound insulation but I am not convinced that it has helped.
 
No way do you want to turn heat off in a room in winter unless you want condensation on exterior walls that will cause mold.

I've seen tenants put boxes and clothes against exterior walls, then ask what's causing black mold on walls.

I know of a home that had to be demolished because owners would turn the heat down while spending winter in Florida.

I'll NEVER let any room get below 60. I have electric baseboards in every room, including closets.

A friend turned his heat off in walk-in closet, then wondered why his shotgun rusted inside a cloth gun case.

Insulate master bedroom if you don't want anyone to hear heavy breathing and moaning.

Not a good idea to turn heat off in any room.
 
I have insulated interior bedroom walls for sound suppression---did not use any vapor barrier
Have had two ski houses in cold climate for the past 30 years and only rooms with pipes are heated---haven't had any mold problems in the unheated rooms
 
I put 6" of foam in the exterior walls and about 12-16" in the ceiling. In the interior i used r11 fiberglass in all of the walls. It's cheap and killed the sound of the washer dryer bathroom fans etc. It also works well for temperature difference between my radiant floor zones. I also think it makes the house quieter just from walking around and echo type sounds.
 
I did this when I built my house back in 1990, all interior walls, floors and ceilings, and I'm glad I did it..muffles the sounds and when I crack a window in the bedroom the rest of the house is not affected...I did this in my shop as well..
 
geo-tho, different here in ohio, me and my wife four bedroom two bath ranch 25 years old.for 15 years 3 bedrooms and a bath shut off from heat, use them for storage [lots of guns] with no water problems or mold, one room is all train sets about 100 feet of track, big layout, no rust...dad's farm house,when i was a kid no heat upstairs,frose to death in the winter, dont remember any mold, people still live in the house,and electric bace bord expensive way to heat, no central air....always have back-up heat, natural gas or propain is the best....[heating closets wth]
 
If your house is insulated right baseboard electric has them all beat. With gas or oil heat you have one central thermostat but with baseboard electric you have thermostat in every room and can control temp in every room. Unlike gas with its up and down temperatures the electric heat keeps constant heat. I have wood heat, LP gas ,and electric baseboard heat in my house. I like wood heat but see the day is coming soon that I won't be able to cut firewood.
 
(quoted from post at 14:45:46 12/05/16) I did it when I remodeled the upstairs 6 years ago. The thought was for sound insulation but I am not convinced that it has helped.

Insulation installed in the normal manner has 0 sound suppression. The sound travels through the solid wood. There have been scientific tests to prove this. There is a method that works with fiber glass insulation. You make a thicker wall with the studs offset on either side and weave the insulation between them.
Elmo
 
I do not know who the person who did the study was but they were wrong. I have build two houses in my life and interior wall insulation is one of the best things one can do. It stops almost all noise is installed properly. Bring them on down here and I will show you.
 
Ware i live in SD we would not even think of not insulating side walls. When i built my shop in 77 i put 6ins fiber glass in side walls and 24 in of blown in in the ceiling this is a 44 by 60 x14 side walls can heat fore about $125.00 in jan
 
D beaty.
In 1991 I built a new house around my 1952 ranch. Back then if you built a new house around old house, the property taxes was determined by the age of the original house.

It took me 5 years to build this house and double the size, add a 2 gar garage, replaced everything, doors, windows, electrical, plumbing, new kitchen. Every room with an exterior wall was gutted. R15 fiberglass and R 4.7 celetex tuff R extruded urethane with aluminum foil of both sides to stop radiant heat was installed before I drywalled. R 50 attic, Anderson casements, 2200+ sq ft, 25000 brick. I used to have NG furnace and 2.5 ton central air. I still use furnace blower for AC, and added baseboard heat in each room. Replaced NG water heater with electric. I have a total electric home. Total annual electric bill is under $1600 which includes electricity for well, 4 dusk to dawn lights and power for workshop.

Electric baseboard never requires filters, never worry about repairs.
Never lost electricity in winter, but if I do, I have two 18000 Btu portable propane radiant heaters and back up generator for well, refrig and a few lights. No insulation in interior walls. No room gets colder than 60. Kitchen and living room are warmer. Keep AC on 75 degrees in summer.

Improve insulation in attic and exterior walls if you want to save money not put in interior walls. Cold rooms will cause condensation and mold.
geo
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I did all mine, pretty cheap for cutting down noise from showers running, music, whatever. Funny story on insulation. I put 2" foam down the outside of my basement walls, studded walls inside, put bats in. Italians come for Christmas, lots of hot air plus the lights and I have to turn the A/C on!! Almost too much insulation for that day. That dang basement never gets cold, even though the furnace rarely runs. I only run the fan to move around wood stove heat.
 
You are lucky. Look at Windows. When they get cold, condensation.

It's possible that your places are not air tight like mine. Cold winter will dry out a house.

I worked at a place that brought in15% fresh air. In winter it was so dry nose bleeds and staric electricity.
 
Insulated walls between bedrooms and the rest of the house to cut down noise. It does work, keeps down noise transfer.
 
I have walls insulated and gable ends have 6" in them and attic has 20" of insulation. All the inter walls and between floors are insulated. It does cut down on noise and shut a room and set thermostat to a lower temp and keep bedroom a little cooler. I have thermostats in every room. I use wood along with electric baseboard. If power goes out I use the wood and LP gas with Generator which will handle gas but not big enough ( 8,000 run 10,000 surge) for the baseboard heat. We started building the house in 1978 and moved into basement in 1980 and finished it in 1982.
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House looks good. Did you do the brick work? I never bricked before. My brother showed me how to brick. Once in a life time for me, 25000 clay brick that could only be cut with wet saw. Never again, brick were so hard, if I didn't tape my fingers, they would bleed.

Glad to see others believe in insulation in exterior walls. Also brick have an added plus, thermal mass.

My AC rarely comes on in the summer because of all the brick.
 

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