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How to Compare Insulation

It’s About R-value

 

The basic way to compare different insulation materials is to measure how well they do their job. Designed to stop the transfer of heat, the more heat that a particular insulating material stops, the better it is.

Insulation’s ability to stop heat transfer is measured in R-value. The higher an insulation’s R-value, the better it is at stopping heat transfer.

The R-value Myth

If insulation is not installed properly, or it does not seal an area completely, heat can pass as if there was no insulation.

Moisture also affects some insulation and reduces its effective R-value. Moisture is present in most ceilings and walls.

The R-value rating of an insulation does not account for the reduction in R-value from poor installation, gaps and moisture.

Insulation Types

A wide variety of insulation materials are available for homes and buildings. Below is a comparison of some of the most common types of insulation.

Fibreglas Batts

The famous “pink” insulation

 

Solid foamboard

Solid sheets of polyurethane foam

 

Loose Cellulose Fill

Made from treated waste-paper

 

Spray Foam Insulation

Blown-in expanding foam insulation

 

Fibreglas Cellulose Foamboard Spray foam
R-value (1”) 3.0 – 3.8 3.5 – 3.7 4.0 7.0
Completely Seals (no gaps) No No No Yes
Waterproof

  1. Unaffected by moisture
No No No Yes

 

 

 

Remove and dispose of your old insulation –
chances are your old insulation is damp, damaged or mouldy

 

Insulate according to your needs and specifications –
We won’t give you insulation you don’t need

 

Maintain a safe work area and a clean home –
You can trust that Air Seal’s courteous and professional
insulators will respect your home, furnishings and privacy

Call Air Seal today - 416 782 1900 -, an insulation expert is ready
to answer your questions and provide a No Charge, No Obligation
quotation to give your home the protection it deserves.