Orlene Flooring July 31st, 2017 - 19:59:28
The manufactured joist, which is a relatively new product, is often manufactured from low cost materials in the shape of an I beam, similar to steel beams in larger buildings. What this means is that the joist is constructed with a thicker top and bottom edge, and generally interlocking aspenite vertically spanning between the two. These systems are very strong, often capable of spanning the entire width of the building.
Carpet is probably the most common floor covering that is used in residential homes. It comes in a wide variety of colors and textures. Carpet consists of woven fibers, which protrude upwards, glued or woven into a foam or jute backing. Often an underpad of pressed foam is installed below it or the backing can be integral with the carpet, adding to the softness and providing a much more comfortable surface for walking on. Carpet is installed by either gluing the carpet to the sub-floor, or the use of carpet tack around the perimeter. A good carpet will has a close weave, which will not show the backing material when separated. To reduce project costs, some contractors will opt to install a high quality underlay, with a low or medium quality carpet. This provides the soft surface, with equal durability, giving the homeowner the benefits of high quality carpet, at a reduced cost.
Of all, the most commonly installed flooring system are framed floors. They consist of dimensioned lumber, bearing on exterior and interior load bearing walls or beams called "floor joists". Generally the floor joists are installed, spaced 16" apart. Installing rim and trimmer joists, to which the floor joists are nailed, finishes the perimeter. Bracing, usually in the form of bridging, but often installed as strapping, prevents the joists from turning in place. One other method used to prevent this type of turning is to glue the sub-flooring to the joists, as the sub-floor is placed.
In the case of long span truss work, bearing lengths of at least 3" are quite common. Trusses span greater distances than framed floor assemblies and can be designed to span the entire building, eliminating center load bearing supports. They are moderately more expensive than framed floor assemblies, but provide a remarkably strong floor with little deflection or "bounce" to it. Another advantage to this type of structural system, is that utility installations can be run between the webwork components. Never allow trades to cut or drill into the members of a truss, for they are manufactured precisely for the loading conditions they will undergo during the life of the building.