The two distinct types of attic insulation are loose fill material also commonly known as blown in insulation and batting.
R value for ceiling insulation canada.
The higher the r value the better the thermal performance of the insulation.
These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation.
Insulation keeps your home from losing and gaining excess heat and one of the places it matters most is in your ceiling.
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.
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.
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 your attic to reach r 30 if you live in zones 2 or 3.
In such cases where r value is assigned this may decrease the r value requirement for batt insulation.
When determining how much insulation you need don t guesstimate calculate.
In attics with fiberglass batts the batts should either be removed or the cellulose blown under the batts to make contact with the ceiling below.
Insulation level are specified by r value.
R values of common types of insulation.
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.
The higher the r value the greater the insulation performance.
The table below shows what levels of insulation are cost effective for different climates and.
Ceiling insulation r value r value for walls and more.
Recommended home insulation r values.
Investing in insulation upgrades will increase your family s comfort reduce your energy expenses and increase your home s value.
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.
Know exactly how much you need with our project calculators.
Best of all there s typically no maintenance.
R value is a measurement that rates how resistant a product is to heat flow measuring the ability of heat to transfer from one side of an object to another.
If there is already blown in insulation in place cellulose can be blown over the top to increase the r value and overall performance.
Just energy savings and better comfort for decades.
R value measures how well certain building insulation materials can resist heat.
Our calculator helps you measure what r value for exterior walls you may be looking for as well as for different applications.
