Spray foam insulation is considered one of the most efficient insulation options available on the market. Its efficiency is mainly measured by its R-value, which indicates its resistance to heat transfer.
Superior Thermal Performance
High R-Value
Closed-cell spray foam offers an R-value of approximately 6.0 to 6.5 per inch of thickness, which is significantly higher than most other insulation materials. In comparison, fiberglass offers approximately R-3.5 per inch and cellulose approximately R-3.7 per inch.
Air Tightness
In addition to its high R-value, spray foam offers superior air tightness. This characteristic is crucial because air leaks can account for up to 40% of a building's energy losses. Spray foam completely seals gaps and cracks.
Comparison with Other Insulation
Advantages of Spray Foam
Unlike traditional insulation such as fiberglass or cellulose, spray foam does not sag over time, thus maintaining its thermal efficiency throughout the building's life. It also resists moisture, which prevents degradation of its insulating performance.
Required Thickness
Thanks to its high R-value, spray foam requires less thickness to achieve the same level of insulation as other materials. For example, to obtain an R-20 value, approximately 3.5 inches of spray foam is needed compared to 6 inches of fiberglass.
Energy Savings
The superior efficiency of spray foam translates into substantial energy savings. Owners can expect a 20% to 50% reduction in their heating and cooling costs after spray foam insulation.
Durability and Longevity
Spray foam maintains its efficiency for over 50 years without significant degradation. This exceptional durability makes it a cost-effective long-term investment for any owner concerned about their building's energy efficiency.