House divided by 600 3 6666.
Attic size for 1500 sq ft house.
If there is poor insulation efficiency in your home its best to estimate higher tonnage.
As an example let s use a home that measures 2200 square feet has an average floor to ceiling height measurement of 8 feet and a whole house fan with cfm rating of 1600.
2200 square foot home x 8 inch ceiling height 17600 cubic feet.
Building codes typically echo the administration s guidelines.
For example a 2 200 sq ft.
Ventilation area in square feet.
The federal housing administration recommends 1 square foot of attic ventilation for every 150 square feet of attic space.
Net free area in square inches.
In the example above you would estimate a 4 ton unit for a poorly insulated 2 200 sq ft.
To determine the size of your attic multiply the width by the length of the attic floor in feet.
For a professional job add between 150 to 300 for labor and you re looking at around 300 to 500 for 6 hours of work.
The average cost per square foot is between 0 64 1 19.
So for instance a 1 500 square foot home would look something like this.
Determine the home s cubic measurement by multiplying the square footage by ceiling height.
There are two different ways to get a ballpark size estimate for your house and one more precise way that we will discuss in this section.
For instance if your house has an overall floor area of 1 500 square feet and 8 foot ceilings multiply 1 500 by 8 to get 12 000 cubic feet of volume.
Use the old school equation.
Cost to replumb a house.
To estimate costs for your project.
Set project zip code enter the zip code for the location where labor is hired and materials purchased.
For a basic project in zip code 47474 with 500 square feet the cost to insulate an attic starts at 1 68 3 25 per square foot.
Multiply the volume by 30 to get 360 000.
House square footage times 30 divided by 12 000 1 0 required tonnage.
Attic area in square feet.
An accurate estimate depends on the number of bathrooms how far they are from the kitchen where the laundry room is and the number of fixtures.
For a single story house this is usually the same as the square footage of the house itself plus any attached garage area.
Actual costs will depend on job size conditions and options.
House square footage ac unit size estimate.
So for a 500 square foot area your estimate will vary between 145 to 200 if you do it yourself.
So you would want to install a 3 5 ton unit.