You might open up your attic and find bare joists with fiberglass or cellulose insulation between the joists.
How much insulation do i need in my attic ontario.
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.
We ve rounded up all the most important know how about attic insulation costs products prep work and installation right here.
Hire an expert to install attic insulation in ontario.
If your insulation is just level with or below your floor joists i e you can easily see your joists you should add more.
Calculate the quantity of insulation you should buy.
Inspecting your attic insulation.
R value is a measure of insulation s ability to resist heat traveling through it.
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.
But if you can t afford to shell out a few hundred bucks for this service never fear.
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.
The insulation in your attic should be at least 12 thick.
All insulation materials in ontario must meet requirements set out by the national government.
How much insulation do i need in my attic.
Fortunately this is a fairly easy fix.
Determine the type of insulation you need.
Insulation level are specified by r value.
First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation.
How to select insulation.
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.
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.
The most effective places to add it to older homes are usually attics basements and crawl spaces.
These r values are a sum meaning this should be the total r value once you add up the entire depth of insulation.
The table below shows what levels of insulation are cost effective for different climates and locations in the home.
The higher the r value the better the thermal performance of the insulation.
Keep reading for the details.
It is not uncommon to see 15 to 20 of insulation in a well insulated attic.
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.
Determine how much additional insulation r value you need.
Determine where you need to add insulation.
