UNI Standards and Waterproofing: What the Regulations Say About Roofing Systems
In the waterproofing sector, understanding and correctly applying UNI standards is essential to ensure safety, durability, and compliance of roofing systems. Flat or pitched roofs—especially when layered—are subject to precise regulatory specifications that concern designers, contractors, site managers, and specialized installers.
The key reference standards for proper roofing system layering and installation include:
- UNI 8627:1984 – Defines the functional categories of roofs, ranging from basic types (solely for water tightness) to complex systems (green roofs, walkable surfaces, driveable areas, etc.).
- UNI 8178-2:1984 – Establishes the technical terminology for roofing systems, clarifying components such as membranes, functional layers, separation elements, and mechanical protections.
- UNI 9307:1988 – Sets the guidelines for the installation of prefabricated bituminous membranes, with instructions on overlaps, fastening, and anchoring techniques.
- UNI 9308-1:1988 – Defines the geometric and mechanical characteristics of prefabricated bituminous membranes, including thickness, flexibility, resistance, and fire behavior.
Although not recent, these standards remain highly relevant on construction sites. They form the foundation for building an effective waterproofing system, depending on the intended use and expected mechanical stresses. The selection of materials, installation method, and substrate configuration must always take these standards into account—especially in multilayer waterproofing systems.
ISOCAF S.R.L. has always integrated regulatory guidelines into its projects and construction sites, applying compliant procedures and certified materials to ensure long-lasting performance. Thanks to our experience, we can handle even the most complex roofing systems—flat, pitched, walkable, or green—while consistently meeting the technical and performance requirements set by the standards.
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