Lundy Flooring July 29th, 2017 - 19:53:45
One drawback is that this type of floor requires special hanger systems designed for the joists, to enable them to be hung from each other or against beams/bearing walls. Manufactured joists are becoming a popular flooring system, for they are relatively cheap, reduce labour time and provide adequate support. However, builders need to familiarize themselves with its installations, for poor installation can cause severe structural damage to the joists. A good example is a three point, center bearing joist, left with the top chord uncut, which can potentially fail or pull apart, over the center bearing point.
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.
Are you going to be able to enforce the warranty? Also, do you really think that a finish can last a lifetime? For example take a nail and try scraping it across the surface. Sure it is a durable, well applied finish, but it is impossible to make a product that won`t get abused at some point in its lifetime. Do you think that the only serious trial your floor will ever see is a stinky sock? Read the fine print on the warranty and regardless of what it says consider the true replacement cost on the floor. It probably only covers the cost of material of the specific damaged product under normal wear and tear. Your product may not be made exactly the same later (trends and product lines change) to replace the section that is warrantied, so you may have to replace the whole floor years later. You will have labor cost along with displacement of trim, cabinets, and appliances. Also most of these lifetime finishes cannot be repaired or sanded because of a micro bevel put on the edge of prefinished floor. Our advice is instead to buy a quality product that can be refinished and repaired because something will go wrong in the lifetime of the floor; don`t get a false sense of security.
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.