Flooring August 20th, 2017 - 05:16:38
With reclaimed material waste factor is a huge variable. How much effort does the manufacturer take to give you a 100% usable product? Poorly milled with very little defecting and culling done on a solid wood floor that costs $6/sf and has a 15% waste factor actually costs more than a similar product that is milled better costing $7/sf with a 2% waste factor. That extra wastes costs more in shipping and labor to defect. This is one of the hardest things to demonstrate to a customer that the face value costs doesn`t necessarily represent the actual raw material cost unless one is truly comparing identical quality and specified products.
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.
We personally do not care for prefinished flooring due to installation problems associated with it, so our product requires site applied finish. This means that your floor finish if site applied will be easier to sand and refinish than a prefinished floor. Also you do not have to deal with that micro bevel groove between each board that tends to fill up with dust and crumbs. Most prefinished hardwood floors really can`t be refinished easily. To sand it off means that the wear layer has to be thicker than the height of the nails and have room to sand off the micro bevel between boards; that amounts to a lot of sanding. You also will not be able to spot sand or touch up parts of the floor.
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.