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Duct smoke detectors are necessary to prevent the spread of smoke throughout the building by the HVAC system. Unlike spot-type smoke detectors, they are not considered early warning devices. They shut down the fans and close smoke dampers to prevent the recirculation of smoke from the fire area to non-fire areas.
Building finishes comprise of plastering, pointing, painting, varnishing, white and colour washing or distempering….External Finishes for Surfaces
Finishes are used in the final part of the construction or manufacturing process, forming the final surface of an element. They can protect the element they finish from impact, water, frost, corrosion, abrasion, and so on, and/or they can be decorative.
Building services are the systems installed in buildings to make them comfortable, functional, efficient and safe. Building services might include: … Facade engineering (such as building shading requirements). Fire safety, detection and protection.
Abstract. Electrical services are a vital component in any building, so it is necessary for constructionprofessionals to understand the basic principle of services design. … It covers methods of wiring, schemes of distribution and protection for lighting and power installations.