Determine how much additional insulation r value you need.
How much insulation do i need in my attic ontario.
All insulation materials in ontario must meet requirements set out by the national government.
How much insulation do i need in my attic.
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.
Fortunately this is a fairly easy fix.
You can sister the joists by cutting 2 x8 boards the same length as the joists applying construction adhesive and affixing each to a joist with nails.
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.
If your attic insulation is only a few inches thick or if you can see the ceiling joists you re wasting money on your heating and cooling bills.
Keep reading for the details.
Inspecting your attic insulation.
We ve rounded up all the most important know how about attic insulation costs products prep work and installation right here.
The most effective places to add it to older homes are usually attics basements and crawl spaces.
First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation.
R value is a measure of insulation s ability to resist heat traveling through it.
How to select insulation.
Insulation level are specified by r value.
No matter what kind of insulation you currently have in your attic one quick way to determine if you need more is to look across the span of your attic.
Hire an expert to install attic insulation in ontario.
The higher the r value the better the thermal performance of the insulation.
The table below shows what levels of insulation are cost effective for different climates and locations in the home.
According to home advisor insulating your attic can cost between 1700 to.
The thicker the better.
Although the recommended r value for attic insulation is ontario is straightforward at between r 50 to r 60 there are too many factors at play to make this a diy project that you can do properly without the relevant training certification and experience.
It is not uncommon to see 15 to 20 of insulation in a well insulated attic.
Determine where you need to add insulation.
Determine the type of insulation you need.
Calculate the quantity of insulation you should buy.
These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation.
You might open up your attic and find bare joists with fiberglass or cellulose insulation between the joists.
The insulation in your attic should be at least 12 thick.
