SERVICES

Our systems consist of spray-applied, two-component products that comprise of an isocyanate (A-Side
Component) and a resin (B-Side Component). These products are not pre-formed, friction-fit batts or
board-stock insulations. Additionally, they do not involve a wet application that uses water. Instead,
during the application, a chain reaction occurs between the two components that creates a bond to the
substrate as it foams up. The product dries, cures, and hardens within 3-5 seconds. We recommend that
this product be installed only by a trained applicator.

Our polyurethane foam systems are closed-cell, with a superior effective R-value of over 6.0 per inch.

There are three major differences between WCE's foam insulation and other commonly used open-cell
insulation systems. Firstly, WCE leverages the versatility of chemistry to provide closed-cell content of
more than 90 percent for all its formulations. Conversely, open-cell foams have a typical open-cell
content of approximately 60 percent. Secondly, closed-cell content provides an R-value of over 6.0 per
inch, while open-cell offers between 3.0 and 3.9 per inch. Thirdly, and most importantly for our wine
cellar construction, closed-cell foam is virtually impermeable to air, whereas open-cell foam allows far
more air and vapor to penetrate the building interior.

A closed-cell, spray-applied polyurethane foam wall system that combines superior insulation values and
near-zero air permeability in a single application to improve building durability, energy efficiency,
occupant comfort, health, and safety.

Our polyurethane foam wall systems have undergone testing and are certified as air barriers at an
application thickness of 1 inch. Once applied, our wall systems become fully adhered and do not allow
air to flow around, behind, or through the insulation system. In contrast, most open-cell foams do not
qualify as air barrier systems since they have not undergone testing.

The U.S. Department of Energy (DOE) has revealed that traditional insulation materials' effectiveness is
reduced by 15 percent due to convection loops through and behind board and batt systems. However,
spray-applied polyurethane technology eliminates this issue by creating a fully adhered, seamless
insulation and air barrier system.

Spray-applied closed-cell polyurethane foam is the only insulation material that adds structural integrity
to the entire wall system. Tests carried out by the National Association of Home Builders (NAHB)

Research Center and the Canadian Construction Materials Centre show that when spray-applied
polyurethane foam insulation is used between wood and steel-stud wall panels and sprayed onto
gypsum wallboard and vinyl siding, it can increase rack and shear strength two to three times compared
to standard stick-built components with glass fiber insulation. Additionally, when sprayed onto oriented
strandboard (OSB), it can increase racking strength.

Mold requires three things to grow: moisture, warm temperatures, and a food source. Polyurethane
foam insulation, which has no nutritional value, is not considered a food source for mold. The use of
polyurethane as insulation eliminates condensing surfaces and reduces the potential for moisture
accumulation. It also eliminates air movement within the wall cavity. Other insulations are less
successful in controlling air infiltration and providing adequate insulation to eliminate condensing
surfaces, thus increasing the possibility of creating an environment susceptible to mold growth.

Our polyurethane technologies are formaldehyde-free formulas that emit no volatile organic compounds (VOCs) and use ZONE3® zero ozone depleting blowing agent technology.

Yes. Our wall systems do not emit Volatile Organic Compounds (VOCs). Off-gassing from this product has been measured at 0.000 parts per million. The product is inert.

Polyurethane insulation meets Class 1 flame and smoke characteristics. However, once installed, it must
be covered by a 15-minute thermal barrier or ignition barrier, depending on the application. Please
check with your local Building Codes for the final determination.

Spray-applied polyurethane foam systems require specific application equipment, including pumps, proportioners and spray guns.

WCE's professionally trained installers always use personal protective equipment (PPE) to avoid any
contact with the skin and eyes and prevent inhaling the isocyanate vapors.

During spraying, WCE always works with adequate ventilation and uses protective gloves, face masks,
and additional required PPE items.