This specification provides detailed guidelines for the design, application, and selection of products used in cold storage and freezer facilities. Its primary goal is to ensure that these facilities achieve an uninterrupted or continuous vapor seal, which is essential for maintaining the desired temperature levels and humidity conditions inside the storage areas. Additionally, adherence to this specification helps in obtaining the applicable Roofing and Vapor Seal Warranty, providing assurance of the performance and durability of the installed systems. The cold storage/freezer envelope system, as outlined in the specification, comprises a comprehensive set of components and materials. These include insulation materials, vapor barriers, roofing membranes, sealants, and other related products. Each component plays a crucial role in maintaining the integrity of the vapor seal and ensuring the overall effectiveness of the cold storage/freezer facility. The specification likely includes detailed requirements for each component, such as material specifications, installation methods, and performance standards, all aimed at achieving optimal functionality and longevity of the facility.