Lundy Flooring July 24th, 2017 - 18:22:08
There are three main types of sub-flooring installed to cover and span the floor structure. It is over this that the finished floor will be placed. The sub-flooring types include raw sheathing, interlocking and strip. It is utilized not only to provide a surface for the interior finishes to be placed on, but also to prevent twisting or torque forces placed on the building. The sub-floor also allows load sharing within the joist framing system. Often the sub-flooring is glued to the joist work to eliminate creaking floors and to prevent the floor joists from turning.
The third variable is installation costs. Our engineered product has labor savings over our solid wood product because it is pre-sanded and milled to tighter tolerances. It is also prefilled in the holes and has next to zero waste. On the other hand you may have a little more in cost of gluing it down in addition to nails, but this is just a step in direction of better quality and peace of mind during the install.
For the second variable here is a controversial opinion: we do not end match our flooring which means there is no tongue and groove on the ends of the planks. Since we recommend our floor be glued down we say this is an unnecessary expense for the customer. End matching reduces the yield in production and raises labor costs. Most end match profiles are milled so loosely that they really don`t hold the floor in place anyway. The biggest benefit to the installer is that the plank can be cut in half in any place and reused anywhere without have to mate up to a complementary tongue or groove since the end is just square cut. This means all end trim pieces or any waste can be reused. Therefore on our engineered flooring product the waste factor is virtually nothing unless there are angles or radiuses to work around. We also help with waste factor by usually supplying a random width product so when one gets close to the end of a room they can plan the width combination patterns out to not have to rip much off the last row.
Strip floors, were once the most popular type of sub-floor installed. But with the introduction of manufactured sheathing products, it has become less utilized. Strip floors consist of 1" by 6" or 8" boards, placed diagonally over the floor joist framing system. It is slightly more expensive to install, and requires experienced tradesmen. To install such floors properly, the lumber should be non-kiln dried, with a relatively high moisture content. This may seem odd, but in reality, as the wood dries out, it will shrink.