Dead Load and Live Load
The load: Dead
What it means:
Dead loads are the forces incurred due to the weight of all the materials used in the construction of a home. Dead loads can vary greatly depending on the type of construction and the interior finishes. For example, carpet, sheet vinyl, trussed roofs, 25-year shingles, and vinyl siding are relatively light in weight. Tiled floors, suspended concrete slabs, 40-year shingles, built-in cabinetry, granite counters, plaster walls, fiber-cement siding, and veneered masonry are relatively heavy.What it affects:
Dead loads have an effect on all structural members of a house. The loads are a constant over the life of the structure, and they have a big impact on the long-term deflection or creep of framing members.The load: LiveWhat it means:
Live loads are produced by the users of a home. These loads include the weight of people, their furniture, and their storage items. A live load is most applicable to floors, but it can apply to roofs during repair projects due to the weight of workers and their materials.What it affects:
Live loads exert force on almost all of a house’s framing components. The goal is to design floor systems that limit deflection and vibration.