At Allied Emergency Services, INC, we understand the importance of ensuring the mold resistance of materials used in restoration and construction. A crucial method for assessing this is the APA Test Method D-2. This procedure, based on the United States Forest Products Laboratory Bulletin No. 1344, measures the mold resistance of protein glues used in wood structural panels.
The Equipment and Setup The testing environment is crucial for accurate results. The specimens are placed in specially designed cabinets with three compartments, each with adjustable trays. Toweling suspended on each side of the trays acts as wicking, maintaining a wet surface. A walk-in housing maintains a uniform temperature of 80°F around the cabinets, crucial for avoiding condensation and ensuring consistent mold growth conditions.
Preparing the Specimens The test specimens vary depending on the panel construction:
- For all-veneer panels, plywood shear specimens are prepared as per Voluntary Product Standard PS 1.
- For veneered composite and mat-formed panels, specimens are cut to 1 inch by 5 inches. For panels with oriented furnish, specimens are prepared both parallel and perpendicular to the major panel axis.
Testing Procedure The specimens undergo a series of treatments:
- All-veneer specimens are conditioned at high humidity and temperature, then placed in the mold cabinet with a soybean flour dusting.
- Composite and mat-formed specimens also undergo similar conditioning.
- At two-week intervals, specimens are removed, dried, and tested for mold resistance.
This meticulous process ensures a comprehensive evaluation of the mold resistance of different types of wood panels, which is crucial in the construction and restoration industry, particularly for clients in areas like Illinois, Wisconsin, and Indiana, where we operate. Understanding and utilizing such testing methods aligns with our commitment to quality and reliability in providing restoration services.
For more personalized guidance, consult with engineers and local building codes specific to your location. For immediate service or consultation, you may contact us at Allied Emergency Services, INC.
Contact Information:
- Phone: 1-800-792-0212
- Email: Info@AlliedEmergencyServices.com
- Location: Serving Illinois, Wisconsin, and Indiana with a focus on the greater Chicago area.
If you require immediate assistance or have specific questions, our human support is readily available to help you.
Disclaimer: This article is intended for informational purposes only. For professional advice, consult experts in the field
