Why Spray Foam Insulation
Air moves in and out of a home through every hole, crack, and crevice. Roughly 33% of air infiltrates through walls, ceiling, and floors. Adding an advanced insulation system is necessary to achieve optimal building performance. Lapolla is that advanced insulation system.
Spray foam insulation can maximize a homeowner’s investment by sealing the building envelope to stop conditioned indoor air from escaping and prevent unconditioned air from entering a home. Air exchange in and out of a home is a leading cause of escalated energy bills. The mechanical systems that heat and cool buildings are continuously operating; reducing extreme temperature variations saves on the overuse of mechanical systems and leads to lower energy bills.
WHERE DOES MY HOME LOSE ENERGY?
Superior energy efficiency mostly depends on creating a better air seal. Wall insulation is a significant issue in home energy savings, but there are other factors that will lower home energy efficiency.
Doors and Windows
Water and moisture in the building envelope is the single, greatest threat to building durability in residential construction. In addition to causing building-durability issues, moisture can create ideal conditions for mold growth, which can dramatically impact occupant health.
Ceilings, Outer Walls Floors and Crawlspaces
Unsealed, responsible for about a third of the air leakage in a home.
As much as 40% of energy loss is due to air infiltration. Therefore, the most effective way to improve energy efficiency and comfort in your home is to seal it with foam.
LET’S COMPARE THE MOST POPULAR HOME INSULATION PRODUCTS
How it works
SPRAY FOAM INSULATION
Spray polyurethane foam acts as a barrier between the home and outside, creating a seal that can conform to any architectural design.
Traps air inside tiny glass fibers that contain small bubbles of air, which slows the transfer of heat.
Made of shredded newspaper and a fire retardant chemical (borate), the paper is broken down into cellular fibers.
WHAT ARE THE BENEFITS OF SPRAY FOAM?
SAVES MONEY & ENERGY
MANUFACTURER LIFETIME LIMITED WARRANTY*
All spray foam installations are carried out by Lapolla / AirTight licensed installers.
*See manufacturer guidelines and requirements.
HOME ENERGY ASSESSMENT
A home energy assessment helps owners determine where their house is losing energy and money – and how such problems can be corrected to make the home more energy efficient. The assessment will include checking for air leaks and inspecting your insulation, furnace and duct work. Inspections also include performing a blower door test and using an infrared camera.
For new homes, our insulators can provide a swift response at all phases of construction, whether you’re at the conceptual phase or if construction is already underway.
THE SCIENCE OF BUILDING
Practicing building science, also known as a “systems approach,” means accounting for the ways all building components interact, including the foundation, walls, lofts, roofs, doors, windows, insulation and mechanical systems. Doing so is critical to optimize building performance and prevent building failures.
Last but not least the building occupants must be educated to behave properly to limit energy losses; the most optimized building with the best insulation will be useless if the occupants do not respect the environment.
The principles of building science include:
- Creating a continuous air barrier combined with proper mechanical ventilation
- Providing thermal resistance and limiting heat bridges
- Managing moisture
- Improving indoor air quality
- Using appropriate heating systems
Lapolla’s AirTight spray foam insulation addresses all of these principles to help building and design professionals practice building science techniques with ease. The benefits are verified through extensive research and testing performed on all Lapolla products worldwide.
Building scientists are now stressing the importance of air barriers like spray foam insulation in building design and construction. This is partly because many buildings constructed in the past had no air barriers and experienced major failures in terms of moisture damage and mould caused by condensation, which stemmed from air leakage. In addition, research shows that without an air barrier, insulation cannot deliver optimal energy efficiency or comfort. This is why blower door tests are commonly required to measure air tightness in new or renovated buildings.
U value measures insulation’s ability to limit conductive heat flow (heat that is transferred through it). But the primary method of heat transfer is not conductive heat flow — it’s air leakage, which can account for up to 40% of a property’s energy loss.
In addition, U value only does so much to prevent even conductive heat flow. Beyond a certain point, improving insulation U value makes very little difference, if any. Above a certain thickness of insulation material the heat flow reduction due to conduction reaches a plateau. In fact, the cost of improving U value alone can actually far outweigh the energy savings that result, meaning it will take much longer to break even.
Therefore, the best way to increase efficiency is not merely to improve U value, but rather to combine U value with an air barrier. Lapolla AirTight spray foam insulation provides both in a single step.