Lundy Flooring July 24th, 2017 - 21:50:59
Most commonly installed are interlocking sheathing panels. This type of sheathing is generally 5/8" thick, and manufactured as either plywood or aspenite (commonly referred to as "chipboard") in 4` x 8` sheets. The sheets come with the long edges designed to interlock with a tongue on one edge, and a grove on the opposing edge. They are installed by simply pushing or pounding the sheets together, and nailing or screwing them to the joist work, in the same manner as raw sheathing. It is often the cheapest to install.
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.
As a reoccurring theme in this article you will find that you often get what you pay for. Admittedly, the higher end price point products ($11+/sf) from more rare woods are not necessarily better quality but we find that up to that point quality improves with price. Our solid wood floors range in price from $4-9 per square foot and our engineered ranges from $7-15 per square foot. We will discuss applications below, but our point is that you need to have a realistic budget when shopping. Sometimes a nice alternative if you have your heart set on an expensive floor is to use less of it and put it just in key areas. Don`t do the whole house. Maybe just do the main high traffic areas and use a cheaper alternative in bedrooms.
Truss floors are simply that. They are constructed from small dimensioned lumber, interconnected in a webwork pattern by the use of metal or wood plates. Occasionally, the trusses will be built on site, utilizing plywood plates to connect the webwork together. Generally they are installed 24" apart, either suspended on bearing walls or beams, or installed with plywood trim or rim joists around the perimeter. Strapping is installed on the bottom side, to prevent turning in place, which is a common ailment for deep truss components.