Not attracted to PVC so are there any other alternatives. Many thanks. CommentAuthor tony CommentTime Apr 9th OSB all the way. It is more tolerant to wetting that happens to the decks during the erection of the upper storey s of the house. Chipboard tends to swell up much more at the joints leading to a poor surface. Plus if you are overlaying with a resilient flooring system OSB should be more cost effective as well.
As for facials, I agree about using a naturally durable timber with NO finish, or using some porfiled powder coated steel or ali. Agree with Timber. OSB goes a bit shaggy if wetted; Chipboard has a tendency to become weetabix - even the V 'waterproof' stuff. Unfortunately unfinished timbers will not look good - the house finish is grey cladding with white windows, etc. Particle board also called chipboard, is the predecessor to MDF. It is a sort of primitive form of MDF.
We create particle board out of the waste matter from sawmills. The addition of insect-proof chemicals, and fireproof and waterproof substances to the product makes it more resilient. Wood sawdust and shavings get compressed into the form of a solid board. Particle board can be then cut and shaped and used for creating different structures. Regarding use, Particle board finds a wide variety of uses in making readymade furniture.
It is also perfect for flooring, especially in combination with parquet flooring. Since particle board has good insulation and sound-proofing properties, it is a popular material for sound studio walls.
Although oriented stranded board OSB has similar uses to plywood, it has a much coarser finish. However, with OSB, the layers are more cross-oriented. We form the layers by shredding wood and then joining them together with adhesive. Under high temperature and compression, the amalgamate then forms a board shape. We can then cut these boards into manageable sizes and shapes for various woodworking projects.
You can use OSB board in flooring for a cost-effective flooring solution or as a sub-floor under a layer of hardwood flooring or vinyl flooring. When cutting with a hand saw on OSB, large flakes may appear due to the structure of the material. When fine-tuning the shape of parts using a belt sander, OSB may require more work.
When drilling holes in OSB, chips can also appear that are absent or almost none on chipboard. For some cases, this is important and must be taken into account when working.
Self-tapping screws screws with a sharp end are included in the chipboard without preliminary drilling. They are also included in OSB, but this requires a force close to the tensile strength of self-tapping screws.
Installation of fasteners in OSB may require preliminary drilling. When installing countersunk head screws in OSB, you need to countersink pots. In chipboard, in many cases this is not required - the head is recessed due to the flexibility of the material. Compare the price per square meter of materials of approximately equal thickness.
Adjusted for the difference in thickness, we can conclude that OSB-3 is almost twice as expensive as chipboard P2. When compared with non-moisture resistant OSB-2, the price difference will decrease to 1. They are laminated or veneered and, after facing, furniture parts are made. In construction, chipboard is used as a structural material to create volumetric interior elements, to hide communications, to create any structures for which the use of plate materials is natural.
These sheets are sheathed with frame structures, used as material for the subfloor. Chipboard flooring. The scope of OSB is shifted towards the increased humidity and high loadings. It is well suited for the manufacture of stairs and any loaded structures, such as ceiling beams or logs for the floor.
I-Beams from OSB. The main difference is moisture resistance. Aspenite, the first generation waferboard called chipboard by many builders , was manufactured from the abundant supply of aspen found in the region credit julio. Technology involving the random alignment of wood-fiber in waferboard soon gave way to the development of structurally superior oriented strandboard.
Codes recognize these two materials as the same. And wood scientists agree that the structural performance of osb and plywood are equivalent. They share the same set of performance standards and span ratings. Both materials are installed on roofs, walls and floors using one set of recommendations. Installation requirements prescribing the use of H-clips on roofs, blocking on floors and allowance of single-layer floor systems are identical.
Even the storage recommendations are the same: keep panels off of the ground and protected from weather. Professor Poo Chow, a researcher at the University of Illinois, studied the withdrawal and head pull-through performance of nails and staples in plywood, waferboard and osb. Chow found that in both dry and 6-cycle aged tests: osb and waferboard performed equal to or better than CD-grade plywood. The results of another independent study conducted by Raymond LaTona at the Weyerhauser Technology Center in Tacoma also showed that withdrawal strengths in osb and plywood are the same.
But, while the two products may perform the same structurally, they are undeniably different materials. To begin with, the composition of each material is different. Plywood is made from thin sheets of veneer that are cross-laminated and glued together with a hot-press.
Imagine the raw log as a pencil being sharpened in a big pencil sharpener. The wood veneer is literally peeled from the log as it is spun. Resulting veneers have pure tangential grain orientation, since the slicing follows the growth rings of the log.
Throughout the thickness of the panel, the grain of each layer is positioned in a perpendicular direction to the adjacent layer. There is always an odd number of layers in plywood panels so that the panel is balanced around its central axis. This strategy makes plywood stable and less likely to shrink, swell, cup or warp. Logs are ground into thin wood strands to produce oriented strandboard. Dried strands are mixed with wax and adhesive, formed into thick mats, and then hot-pressed into panels.
Osb is different. The strands in osb are aligned. This structure mimics plywood. Waferboard, a weaker and less-stiff cousin of osb, is a homogeneous, random composition.
Osb is engineered to have strength and stiffness equivalent to plywood. Performance is similar in many ways, but there are differences in the service provided by osb and plywood. All wood products expand when they get wet. When osb is exposed to wet conditions, it expands faster around the perimeter of the panel than it does in the middle. Swollen edges of osb panels can telegraph through thin coverings like asphalt roof shingles.
The term ghost lines or roof ridging was coined to describe the effect of osb edge swelling under thin roof shingles. The Structural Board Association SBA , a trade association that represents osb manufacturers in North America, has issued a technical bulletin outlining a plan to prevent this phenomenon.
SBA correctly indicates that dry storage, proper installation, adequate roof ventilation and application of a warm-side vapor barrier will help prevent roof ridging. Irreversible edge swelling has been the biggest knock on osb. Manufacturers have done a good job of addressing this issue at the manufacturing facility and during transportation by coating panel edges.
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