The major part of any building is its floor system which carries the weight of interior walls, roof, furniture, appliances, people etc. Many homes that are built with weak foundations footings, Improper spaced support columns, undersized and/or improperly spaced floor joists or weak improperly nailed sub flooring lead to failure in multiple performances or structural failure of the flooring system. That’s why flooring needs to be made with the right choices.
There are mainly four types of subfloor that are used in homes which are given below
1 – Plywood sub flooring
This plywood is made from thin sheets of (usually southern pine) veneer that are cross-laminated and glued together forming 4″ x 8″ sheets that are either 5/8″ or 3/4″ thick, which are most commonly used as exterior structural subfloor material.
2 – Plank subflooring
Planks nailed tends to squeak less as nails resist pulling out which are used in many old homes while remodeling.
3 – OSB (Oriented Strand Board) Subflooring
OSB is efficient with wood fiber. OSB Subflooring is a bunch of wood chips glued together while installation is done by gluing and nailing the OSB sheets to the floor joists.
4 – Concrete Slabs
These flooring’s are nowadays used in modern buildings to construct or support the ground floor building which is directly supported on subsoil. According to its thickness and thinness of concrete slab, you have to keep them to where it’s more suitable or supportive.
After the selection of subflooring, you can start on the stepwise process for subfloor installation,
5 – Laminate the sub floor bearers
This is the most important part of subflooring, where you must make sure the foundation is strong enough to hold the rest of the floor up. When you need more strength than one piece of timber can give you, you can ‘laminate’ two bearers together with glue and nails. All laminate floors require a suitable underlayment pad.
6 – Install Subfloor Bearers
Subfloor bearer must sit in place with each other on your foundation, Due to the smooth texture of tile and the need for the wood adhesive to stick to it, it is not recommended to direct glue down wood flooring over a tile.
7 – Level the sub floor Bearers
Now its time to measure the level of subfloor bearer by putting a spirit level on top of each bearer to check that it is sitting level.
8 – Stagger the join in the sub floor joists
To improve the strength of the subfloor, these joins should be staggered. Install the short end of the joist on one side for the first joist, then swap sides for the second joist. Continue this pattern across the subfloor.
9 – How to join a sub floor joint
There are two types of joints while joining subfloor to use to connect timber in a floor joist. When your bearer is wide enough, join the two pieces of joist together end-to-end. This is called a butt joint. When your bearers are thinner, it is better to overlap the pieces side by side. This is called a lap joint.