Attic Insulation Payback Calculator
Department of energy to find out how long it will take to payback your investment in terms of savings in energy costs.
Attic insulation payback calculator. A payback calculator for insulation retrofits calculate how long it will take for energy savings to pay back a planned investment in attic or wall insulation by gba team august 24 2010. A simple payback is the initial investment divided by annual savings after taxes. Proper attic ventilation consists of a balance between air intake at your eaves soffits or fascias and air exhaust at or near your roof ridge. Federal housing authority recommends a minimum of at least 1 square foot of attic ventilation evenly split between intake and exhaust for every 300 square feet of attic floor space.
Years to payback is the time required for the insulation to save enough fuel from heating at present prices to pay for itself. 2016 was the first time insulation was included specifically adding fiberglass attic insulation. The equation works only for uniform sections of the home. What you need to use this calculator.
Your attic should have a certain amount of insulation in it and the recommended level of insulation for your attic is dependent on where you live. First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation. Rigid foam boards trap air or another gas to resist conductive heat flow. Use our calculator based on an equation from the u s.
Remodeling magazine publishes an annual cost vs. Value report in which they show national and regional average prices for a set of typical home improvements as well as the payback of these improvements in terms of enhanced home value. Click the button to calculate the amount of insulation in square feet and man hours wall and ceiling fiberglass insulation needed for this job. Insulation savings calculator use this insulation savings calculator to measure the financial impact of increasing your insulation performance.
This calculator is to be used as an estimating tool only. Determine your current type of insulation and the thickness amount in your walls or attic. Bulky materials resist conductive and to a lesser degree convective heat flow in a building cavity. Inspecting your attic insulation.
Enter your data into the fields where indicated. Square feet of house or area to be insulated current and desired r value for insulation and type and cost of your energy. Insulation materials run the gamut from bulky fiber materials such as fiberglass rock and slag wool cellulose and natural fibers to rigid foam boards to sleek foils.