Having a roof that is properly insulated has several important advantages. For starters, there are the usual cost savings that come with having a properly insulated home. Secondly, a well-insulated roof is also less likely to develop ice dams, which can cause damage to your roof and home.
Although the advantages of well-insulated roofing are understood, how to achieve this is much less known. There are a few ways that you can ensure you're living under a roof that has adequate levels of insulation.
Get Damage Repaired
Step number one is to get current and future roofing damage repaired by a roof damage repair services contractor. If your roof has nicks in the insulation and roofing materials, it doesn't matter what kind of insulation you have; your roof isn't going to be well-insulated because the elements will get in through the damaged materials.
Choose the Right Type of Insulation
There are different ways of insulating a roof. One of the most commonly used methods is the use of batts of insulation material or quilts. These are added over and between the joists. Permeable insulation is also commonly used in old buildings.
Another popular type of insulation is blown or loose fill insulation. This type of ventilation can fill all the gaps in the roof, but it can also be blown around by air currents leading to unevenness. Rigid boards can also be used but these must fit tightly together for them to be effective. This can be hard since they're difficult to cut.
Consider Thermal Performance of the Material
Apart from the type of insulation, you should also consider the material used to make the insulation itself. This is where choosing a material with good thermal performance is important. Some of the materials you'll be choosing from include hemp, sheep's wool, fibers from recycled newspapers, etc. These materials have different levels of thermal conductivity and you want the one with the lowest possible thermal conductivity level.
Upgrade Existing Insulation
Just because your existing roof is already insulated doesn't mean it can't benefit from additional insulation. The standard thickness of insulation used in buildings has changed significantly over the past decades and so have building codes. Although the codes can't be applied to an old building, it's still a good idea to add more insulation to top-up the existing one. The insulation you have may also have been poorly installed or less effective due to age.
Avoid Packing in the Insulation
Packing the insulation to make it fit may seem like a good idea but it actually reduces the effectiveness of the insulation. You should also not push the insulation into the eaves. Doing this can interfere with ventilation paths at the roof's edge and can also result in wet roof timbers.