Spray vs. Rigid Insulation

Both spray foam and rigid foam have the properties necessary to insulate your home. Spray foam, especially closed-cell spray foam, is known as a great insulator because of its high R-value, ability to act as an air barrier and ease of use. There’s no denying: spray foam outperforms many other types of insulation materials, as studies show.

Deciding between spray foam and rigid foam depends on many different factors and can only be done by an expert. If you want to save energy and prevent possible damages caused by an improper type of insulation material or poor installation, don’t hesitate to call or email us to schedule an examination.

To gain a better idea of what you can expect from each of these two products, we recommend reading the following pros and cons. Here is everything you need to know about the properties of spray foam and rigid foam before discussing with one of our experts.

Advantages of Using Two-component Spray Foam

– High expansion rate allows it to fill difficult gaps and cracks.
– Has a high standard R-value, and can even increase depending on the mixture.
– Easy and quick to install.
– Durable material that does not shift or compress.
– Improves the structural stability of the walls and roof.
– Prevents the growth of mold.
– Acts as an air sealant, improving the property’s energy efficiency.
– Prevents moisture.
– Acts as a barrier against rain and bulk water.
– Can be installed in small or large amounts.
– May be used to fix problems with existing insulation.
– Reduces pollen infiltrations.
– Reduces dust.
– Reduces mold.

Disadvantages of Spray Foam

– More expensive than rigid foam.
– The average payback period is three years.
– Messy installation; if oversprayed, more work needs to be done to remove the foam.
– Lengthier installation process.
– R-value can decrease over time.
– Covers less area, which means you will need to invest in more product.
– Can trap water if it’s not applied properly.
– Not suitable for the environmentally-conscious individuals.
– Not a DIY project.

Advantages of Rigid Foam Insulation

– High R-value.
– Some products are water resistant and can be used to insulate foundations.
– Some types of rigid foam make for a greener choice than spray foam.
– Can be bought with foil facings so that it can be used underground.
– Don’t require protective equipment.
– Air sealant if the seams are properly sealed with tape.
– Clean installation.
– Easy to use.
– Various thicknesses available depending on where you need to use it.
– Effective for crawl space and basement walls.

Disadvantages of Rigid Foam

– Improper installation may allow water to infiltrate.
– Poor air sealant if the joints are not taped correctly.
– Susceptible to sunlight which may damage it if it’s not stored properly.
– The air bubbles in the rigid foam may accumulate moisture, thus reducing its efficacy.
– Basic rigid foam cannot be used underground unless additional properties are added.
– The R-value of some types of rigid foams can be as low as 3.8 per inch.
– The installation process may be a bit more time-consuming than with spray foam.
– May have to be installed along with other types of insulation materials for a better result.