Roof insulation tips

roofing tips

Roof insulation tips

Winter is here and that means cold temperatures, and maybe even snow. As temperatures drop you can expect your heating costs to rise. That’s inevitable. However, if you’re noticing that they’re even higher than usual—higher than they should be—it could be a sign that your insulation is insufficient. If your home isn’t properly insulated, heat (and your hard earned money) is literally escaping out of the roof.) Insulation is the key to keeping heating costs down this winter so here are some tips to keep in mind.


Before we talk about insulation, let’s talk about basic roof maintenance. Though insulation is often to blame for high heating costs, other common roofing issues could be to blame as well. It’s important to keep your roof in good shape by inspecting it regularly and replacing any cracked or warped shingles as it becomes necessary. Also be sure to take care of any rotted wood or gaps in the fascia or flashing as these are ways hot air can escape your home.

Cold vs. warm roof space

There are two ways to insulate your home. The first is to insulate along the rafters. This will allow for a warm roof space because warm air can heat up your attic space. The advantage of a warm roof space is better heat retention in your home and lower heating costs. The down side to a warm roof space is that it could cause ice dams to form on your roof. For a cold roof space, you insulate at the joist level to keep your attic space cooler. If you live in a colder climate where snow is common, this is the better option though it will result in higher heating costs.

Blanket insulation

Blanket insulation is probably the most common form of roof insulation. Blanket insulation is typically made from fiberglass. The contractor will make sure that there is a vapor barrier and then the blanket insulation will be rolled out flush with the roof joists or rafters to ensure that there are no gaps where warm air can get through.

Spray foam insulation

An alternative option to blanket insulation is spray foam. This can be used with either a cold or warm roof space. The contractor sprays the material which is in the form of foam along the joists or rafters. Over the course of a day or two, the foam will harden and become a rigid thermal insulation barrier.

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