Calantha Flooring August 10th, 2017 - 18:02:54
Raw sheathing comes in 4`x8` sheets, most often installed as 3/4" thick plywood panels. This type of sheathing is adequate for spanning joist work spaced up to 24" apart. The sheathing is lain with the joints staggered in such a matter, that no two edge joints line up with adjoining sheets. It is very easy to install, requiring the least amount of labour. The sheets are fastened with either 1-1/2" flooring screws, or 2-1/2" nails, spaced about 8" apart. Although not required, it is a good idea to provide backers or supports under the joints, between sheets which run perpendicular to the framed floor assembly.
So let`s start off this article with talking about the number 1 reason our engineered oak floors have the upper hand over solid oak floors, this being it`s stability. A quality engineered board will be made up of around 10 layers of multi laminated birch ply wood. These layers are stuck in opposite directions with a moisture resistant adhesive and this gives the floor an immense amount of stability. We have been asked before by customers who have researched the market how strong the adhesive is as they have heard of stories of engineered wood flooring de-laminating.
Here is a word on prefinished product if they factor into your decision. If you come up short on your order, the next lot that you buy may not match your previous batch. This is especially a problem on the lower end price floors and import floors. Good luck trying to blend it in with your previous floor. So if you go this route, be extra accurate on your measurements. Right now the rage is lifetime warranties on flooring. We stop to think is that really even possible? First will that importer or manufacturer really be around a lifetime? A lot of products are made oversees; the warranty is only good if there is somebody still around for the life of the warranty.
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.