Ceiling Insulation R Value Ontario

Depending on where you live and the part of your home you re insulating walls crawlspace attic etc you ll need a different r value.

Ceiling insulation r value ontario.

Recommended home insulation r values. In this post we will look at two key ontario building code changes for home regarding insulation requirements continuous insulation and attic insulation. Insulation level are specified by r value. All insulation materials in ontario must meet requirements set out by the national government.

Continuous insulation this refers to a monolithic. To be available on the market manufacturers take care of this step before their products are even available which is why it s important to ensure you re buying new insulation and not dead stock found in someone s garage. Find your zone on the map and then use the above insulation r value chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces. In such cases where r value is assigned this may decrease the r value requirement for batt insulation.

R value is a measure of insulation s ability to resist heat traveling through it. R values of common types of insulation. The two distinct types of attic insulation are loose fill material also commonly known as blown in insulation and batting. The recommended r value for attic insulation in ontario is between r 50 and r 60.

When determining how much insulation you need don t guesstimate calculate. You may or may not be aware that insulation codes have changed for all new builds with permits issued after 2016. The higher the r value the greater the insulation performance. The higher the r value the better the thermal performance of the insulation.

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. The table below shows what levels of insulation are cost effective for different climates and. These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation. The r value of the insulation for every inch of thickness depends on the type of insulation.

Typical recommendations for exterior walls are r 13 to r 23 while r 30 r 38 and r 49 are common for ceilings and attic spaces. Know exactly how much you need with our project calculators.