What is one approach to keep a commercial building watertight?

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One effective approach to keep a commercial building watertight is the barrier approach. This method involves creating a robust, continuous layer that protects the building envelope from water infiltration. It is designed to manage moisture and ensure that water does not penetrate through the walls, roofs, or foundations.

The barrier approach often utilizes various materials and techniques, such as waterproof membranes, sealants, and strategic design principles to divert and manage water. This method is especially useful in areas that experience heavy rainfall or where water accumulation is a significant risk. By ensuring that there are no gaps, seams, or vulnerabilities in this barrier, the building is better protected against leaks and water damage, which can compromise both the structural integrity and the indoor environment.

Other methods mentioned might play a role in water management but do not specifically focus on creating a watertight environment in the same comprehensive way that the barrier approach does. For instance, while single-ply roofing can provide a layer of protection, it may not be as extensive as a fully integrated barrier system. Steel framing and asphalt shingles might be components in a building's design, but they do not alone ensure a watertight structure as effectively as a dedicated barrier approach does.

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