Use the old school equation.
Attic size for 1500 sq ft house.
So for instance a 1 500 square foot home would look something like this.
To determine the size of your attic multiply the width by the length of the attic floor in feet.
For example a 2 200 sq ft.
Replumbing a 1 500 square foot home costs between 2 280 and 4 080 or 0 40 to 2 00 per linear foot depending on the type of pipe used.
Attic area in square feet.
So you would want to install a 3 5 ton unit.
For a single story house this is usually the same as the square footage of the house itself plus any attached garage area.
Net free area in square inches.
Cost to replumb a house.
20 x 50 1 000 sq.
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.
Ventilation area in square feet.
If there is poor insulation efficiency in your home its best to estimate higher tonnage.
Actual costs will depend on job size conditions and options.
So for a 500 square foot area your estimate will vary between 145 to 200 if you do it yourself.
Building codes typically echo the administration s guidelines.
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.
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.
House square footage ac unit size estimate.
To estimate costs for your project.
House square footage times 30 divided by 12 000 1 0 required tonnage.
Set project zip code enter the zip code for the location where labor is hired and materials purchased.
Example 20 wide by 50 long attic.
House divided by 600 3 6666.
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.
Multiply the volume by 30 to get 360 000.
The federal housing administration recommends 1 square foot of attic ventilation for every 150 square feet of attic space.
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.
The average cost per square foot is between 0 64 1 19.
Determine the home s cubic measurement by multiplying the square footage by ceiling height.