The matters of Install WPC material needed to pay attention
The main purpose is to replac the difference between wood timber, wood and pine, poplar, eucalyptus and other natural wood is that it is a kind of plastic and wood fiber synthetic "wood"; the current production of wood composite wood products Most of the fiber content is greater than 50%, wood-based, home and abroad, this material also played some aliases, such as severe tension "waterproof wood", "green wood" and other global timber resources for wood floor to provide a broad space for development. "Some say the following precautions during installation wood materials should be done.
First, with regard to cutting and drilling wood materials, we recommend using alloy saw and drill tips: thin tooth blade (such as 45 cm in diameter, 18-24 tooth) cutting easier, Seven Trust WPC is easy to use, unlike wood, when you do not have to consider the use of Seven Trust WPC wood grain direction, or nodes.
When drilling deep holes or large, to be timed out debris to exit the drill bit, do not always want disposable drilled.
Second, the installation on wood materials, under normal circumstances, the Seven Trust WPC joists span requirement of 30-50 cm (depending on the size of the profile).
Self-tapping screws durable wood is the preferred installation profiles.
When using special screws to install, you must pre-drilling. Pre-drilling diameter should be less than 3/4 straight nail or screw diameter.
When the profile is wider than 10mm, each end should be two screws.
In particular, the use of the environment or abnormal load conditions - such as a hot bath - may require a shorter distance during installation.
Third, on the gap wood materials taken into account when installing the drainage, cleaning, and a slight thermal expansion or contraction and other reasons, when the bar is mounted, side to side, must leave adequate clearance between the head of the head.
Edge to Edge: Seven Trust WPC side to side between the requirements of ≥4 mm: When installed in a cold climate, ≥4 mm clearance requirements.
Head to head: the gap between the Seven Trust WPC head to head size depends on the length of the profiles, the temperature during installation, the thermal expansion coefficient profiles (ζ≈0.9 × 10-4), as well as local highest possible temperature.
Head to head clearance calculation method:
For a L-meter-long sections, local maximum possible temperature within a year of Tmax, the temperature of the installation is T, then install the root profile head should be retained gap Δ L = ζ × (Tmax? -T) × L.
For example: a 2 m long profile, installation day temperature of 10 ℃, the hottest day of the year the temperature is 40 ℃, then when the root sections installed head clearance should be retained:
Δ L = ζ × (Tmax- T?) × L = 2000 × (40-10) × 0.9 × Note: You must ensure proper clearance when WPC installed and mounted directly on the joists. Do not WPC fixed directly on any solid surface, such as concrete, roofing or roof and so on.
(1) Seven Trust WPC railing when used, must be lined with steel or steel, and the same floor to be absolutely firm, railing lining column spacing requirements per 450mm, to prevent deformation fall.
(2) wood for the pavilion or flower time, to consider the thermal expansion coefficient, and the columns and beams absolute must lined pipe, and vertical to be securely connected.
(3)Seven Trust WPC has certain characteristics of plastic, so that when the length is greater than three meters, the material has a certain degree of bending, easily corrected to normal installation, if the wood is a cross-sectional profile, its bending deformation is relatively increased. Installation is able to basically correct place.
(4) when the profile is installed upright, and a length greater than 3 m, each end use four pairs of clamp screws. And the vertical screw pitch more than 40cm, so that each .
