Ceiling Insulation R Value Canada

Recommended insulation levels for retrofitting existing wood framed buildings.

Ceiling insulation r value canada.

Here is a precise list of the r values necessary for the insulation of roofs in canada with related types of better insulation. The tables provide the effective thermal resistance of the frame cavity component over a wide range of nominal insulation values in increments of approximately rsi 0 18 r 1. In canada provincial building codes specify minimum r rsi values for new construction. In such cases where r value is assigned this may decrease the r value requirement for batt insulation.

Many homes in canada lack adequate insulation costing homeowners more money on energy bills to keep their houses warmer in the winter and cooler in the summer. Existing 3 4 inches of insulation. The recommended r value for basement insulation in north america is r12 but the r value in insulation is lowered substantially when there is air or moisture leaks. Thus the standard r value varies by climate temperature and specific conditions.

Insulation keeps your home from losing and gaining excess heat and one of the places it matters most is in your ceiling. Foam plastic insulation on the interior of the building envelope must adhere to the requirements of protection of foamed plastics as per 9 10 17 10 of the national building code of canada. Notes on the r value k values of different forms of asbestos. As a fast option to increase the wall rsi value while reducing thermal bridging install at least rsi 0 88 to 1 76 r 5 to 10 rigid board insulation directly to the wall finish and cover it with drywall.

Add insulation to attic. Zone 4 and zone 5. For example if you have a type of insulation that has an r value of r 5 per inch of thickness you will need a depth of 6 inches of this insulation installed in your attic to reach r 30 if you live in zones 2 or 3. R value recommended from r40 to r60 with batt or blown insulation.

Notes to the table above. The r value is increasing so the higher it is the more thermally insulated your home will be. The rationale for providing the wide range is allow for a variety of cavity insulation products including batt spray applied and loose fill insulation products.