Tag Archives: Waterproofing

Extruded polystyrene in protected membrane roof assemblies

Protected Membrane Roof Assemblies (PMRAs) have benefitted from more than a half century of innovations and improvements. PMRAs developed in sophistication along with new building materials such as modified bituminous roofing membranes and single-ply roofing materials; and new applications such as vegetative roof assemblies (VRAs, or green roofs) and stormwater retention and detention assemblies (blue roofs).

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The deleterious situation of the pool structure

Improper design, poor construction techniques, and lack of maintenance can allow chlorinated water to migrate into the pool’s concrete shell and embedded structural reinforcement. To ensure the longevity of the pool structure and its components, design professionals must be familiar with state-of-the-art construction technology and performance-based design.

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