When does splicing covers with watertight joints become necessary?

Splicing covers with watertight joints becomes necessary when objects or groupings are too large to be covered with a single cover. This situation requires combining multiple covers to ensure complete protection against environmental factors such as moisture, debris, or other elements that could compromise the integrity of what is being covered. By using watertight joints, firefighters can ensure that the entire area remains sealed and protected, preventing water or contaminants from penetrating the cover and adversely affecting safety or the firefighting operation itself.

Other considerations, such as the thickness of cover materials, potential rainfall, or hazardous materials, may influence the choice or use of covers, but they do not specifically drive the need for splicing covers to ensure adequate coverage for large objects or groupings. The focus on size highlights the practical necessity of adapting to the challenges presented during firefighting operations.