Spray foam insulation is a great way to keep your home warm in the winter and cool in the summer. The most important aspect of insulation is how well it resists conduction and convection, or heat flow in and out. Spray foam is better than traditional fiberglass and cellulose at resisting both conduction and convection. It is also much more effective at blocking airflow in and out of a building envelope, which improves energy efficiency, and comfort and reduces outdoor noise.

When properly installed (which only professional insulation crews can do) spray foam will last for as long as the building it is in. It does not sag or settle over time, unlike conventional insulation materials like fiberglass and cellulose.

Common Applications of Spray Foam Insulation in Residential Settings

It is very important to make sure your contractor knows what he is doing before installing spray foam. Spray foam can be dangerous if used incorrectly. For instance, if the foam is over-applied, it can sag and pull away from framing. Another common mistake is not identifying the boundary of the building enclosure, which is where the conditioned space ends and unconditioned spaces begin.

When paired with air sealing, spray foam is an excellent option for new construction and existing homes. It is often a good idea to combine it with other projects that require opening up walls like painting or window replacements. This will help you maximize the effectiveness of your project. When spraying in new windows, for example, you should consider replacing old or inefficient ones at the same time as it is a very disruptive process and it will create the most weatherproof seal.

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