Insulation Cost Calculator

So, how much does it cost to insulate a house? Once you’re ready to order insulation, navigate to Pricewise Insulation’s online store and select the product you need. Asking, “how much does insulation cost?” is a bit like asking “how long is a piece of string?” There are a whole range of factors that affect the insulation price, such as R-value, insulation type and brand. There is an insulation cost calculator under most products for your convenience, which works out for you based on how many square meters you enter, how many bags you will need.

Insulation Calculator for Ceilings – Using Google Maps

Watch the below video to learn how to calculate how much roof insulation you need by using the measurement tool in Google Maps.

Ceiling Insulation Calculator – Using a Tape Measure

If you’re still unsure as to how much ceiling insulation you need for your project, this traditional insulation calculator method will help you to work out your house size. You will need a:

  • Tape measure
  • Pen & paper
  • Calculator

Calculating the size of your house

  1. Measure the outside walls of the house.
  2. Sketch and mark the measurements on the paper as you go.
  3. Measure all the entrance ways and areas not to be insulated.
  4. Once completed, divide the different sections into blocks use a calculator to multiply the different lengths of each of the boxes to find the square meter size of all the boxes.
  5. Add all the boxes together. This is the size of your house.
  6. Measure the distance between the joists as to know which width of insulation to order

Quick Tips

  • For insulating between the joists you will need approximately 90% of the house area.
  • For foil type insulation you will need approximately 110% of the house size to allow for overlaps.
  • For insulation blankets that will cover the joists you will need 100% of the house size

Wall Insulation Calculator – Using a Tape Measure

If you’re unsure how much wall insulation to buy, then these instructions will help you to work out your house size. You will need a:

  • Calculator
  • Tape measure
  • Pen & paper

How to work out square meters of your house

  1. Measure the external walls of the building
  2. Sketch and mark the measurements on the paper as you go.
  3. Measure the height between the floor and ceiling.
  4. Once completed, add the wall lengths up and multiply this by the height.
  5. Measure the windows and doors from inside and make a list of the areas.
  6. Subtract the total of the windows and doors from the total wall area. This is your to be insulated wall area.
  7. Measure the distance between the wall studs as to know which width of insulation to order.

Quick Tips

  • For insulating between the studs you will need approximately 90% of the to be insulated wall area.
  • For foil type insulation you will need approximately 110% of the to be insulated wall area.
  • The amount of insulation you need should be the same regardless of whether it’s a retrofit wall insulation job or a new build.
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