What is the allowable weight for a lead roof flange?

The allowable weight for a lead roof flange being designated as 3 pounds is grounded in the standards established for roofing materials and plumbing components. Lead flanges are commonly used in plumbing applications due to their malleability and ability to create watertight seals, particularly for vent pipes passing through roofs. The weight limit is set to ensure that these components can adequately support the necessary plumbing fixtures without risking damage or failure due to excess weight, which can create undue stress on the flange and the surrounding roofing material.

Maintaining compliance with this weight restriction is crucial to ensure safety, proper functioning, and longevity of the installation. This type of specification is typical in plumbing codes as it facilitates uniformity and reliability in construction practices.