What is R-value?
R-value is the rating of thermal resistance per inch of insulation product.
Every insulation product has a different R-rating per inch (i.e. Extruded Polystyrene is rated R-5 per inch).
Under the Ontario Home Energy Retrofit Program for renovation grants, the brand name or type of product doesn’t matter, as long as the R-value is achieved. Be sure to check past the marketing material for insulation to make sure what the true R-value is of a product. This is an useful summary of R-values: http://cmhc.ca/en/co/maho/enefcosa/enefcosa_002.cfm.
Interesting fact: having a good amount of insulation in your home not only keeps the heat in during the winter, but also helps to keep the heat out in the summer! A well insulated home means a comfortable home, all year round.