Minimum Attic Insulation Ontario

The two most important changes in the code for insulation have to do with continuous insulation throughout the building and increasing attic insulation from r 50 to r 60.

Minimum attic insulation ontario.

The recommended r value has been raised from r 50 to r 60 in order to increase the insulation of the attics. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. And with raised heals on the truss there s plenty of insul. Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces.

Access 1 everyattic or roof space shall be provided with an access hatch where the attic or roof space a measures not less than i 10 m in area ii 1 000 mm in length or width and iii 600 mm in height over at least the area described in subclauses i and ii or. The ontario building code act is a legal framework set up by the provincial government to establish minimum building standards and it applies to any new builds renovations or change of use construction. You may or may not be aware that insulation codes have changed for all new builds with permits issued after 2016. Inspecting your attic insulation.

Canada eco energy ontario homeowner s can get up to 750 in grants from the canadian government for attic insulation. Beam and floor joist spans are very adequate by todays standards. The table below shows what levels of insulation are cost effective for different climates and locations in the home. Another area where the ontario building code has seen changes is in attic insulation requirements.

The ontario building code access 9 19 2 1. The ontario building code requirements for insulation is only one of many sections within the act that helps protect you and other people. R value is a measure of insulation s ability to resist heat traveling through it. The change that occurred in the attic insulation in the ontario building code was in the minimum required r value.

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. Continuous insulation this refers to a monolithic. Insulation level are specified by r value. The higher the r value the better the thermal performance of the insulation.

First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation.