How to join 2 pieces of wood in the corner with a screw.
How to Repair Drywall
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When cutting metal products with polymer coatings, it is strictly prohibited to use grinding wheels (grinders), as this will cause damage to the coating and metal corrosion. Check the flatness of walls and corners that are level with the building. It isrecommended to use ventilated metal slats under the wall panels (Figure 1). It is not recommended to use wood as the slats of metal siding because it is more prone to rot and deformation. Due to the low quality of existing wood, there is a risk of fastener breaking and structural collapse. Also, please don’t forget that wood is a fire-dangerous material.
At the openings of doors and windows, the sheath is continuous. The slats of the slats must be installed at the bottom and top of the panel installation area, the corners of the building, the joints of the walls, etc.
Use a hammer drill to drill holes in hollow bricks and fasteners in blocks. When the panel is installed vertically, the slats can be installed horizontally. For horizontal installation-vertical installation. The installation of the insulation board starts from the lowest installation point. In this case, the lower end of the insulating plate is placed on the base or any other surface that prevents the plate from sliding. The insulating board should be placed as close as possible, and it is important to prevent the insulating board from deforming. If the insulating layer is multi-layered, the seams of the plate should not overlap, but should overlap the upper plate. The board is fixed with plastic disc pins with spacers, and the recommended consumption is 6-8 pcs/m2. Drill the holes marked on the insulating material, then insert a metal rod into it to serve as a temporary support for the insulating plate, and then replace it with a positioning pin. The surface of the insulating board needs to be covered with pins. If a slat with a large enough cross-section is used, a plug can be installed on the insulating plate (for this, the insulating plate should be cut with a margin of 16 mm).
Do not use loose insulating materials for wall insulation. Please use respirators, protective gloves and hats when performing insulation work.
Installed on insulating materials without gaps to facilitate the removal of steam from the insulating materials. If traditional waterproofing membranes are used, dual-circuit ventilation (between the membrane and the guard and between the membrane and the insulator) must be provided.
Incorrect placement of materials will reduce water resistance and vapor permeability. According to practice, it is more convenient to place the membrane horizontally with a vertical overlap of at least 101 mm. In the case of vertical stacking of films, the material must be cut into canvas equal to the height of the facade.
The film is glued to the metal crate with double-sided tape, and then the film is fixed with a reverse guide rail to form a ventilation channel between the film and the shaped board.
It is also necessary to arrange non-insulated exterior walls, use water and electricity, and wind protection. You can use double-sided staples (on any surface). Use architectural stapler staples (wood walls), plastic pins (for brick/stone walls) to fix the film directly on the load-bearing wall, and use reverse rails The film is further fixed. The distance between pipe supports shall not exceed 1, but not less than 2. Every pipeline. The ventilated facade system uses brackets to fix the stone to the rigid base. Attach the required number of brackets to the rail. Seal the channel so that it passes through heat insulation, hydraulic pressure, and windshield. The holes in the bracket can be drilled with a drill bit.
When installing the siding, complex or simple additional elements are used depending on the type of panel. Before installing the side panel, install complex additional components first, and then install simple components after installing the side panel.
Check the perpendicularity of the butt bar to the starting bar, and fix the bar along its entire length. Compound additional elements can also be used. Before and after the wall panels are installed, composite add-on components are installed in stages. For more information on the installation of composite extensions, see page 41. You should start at the bottom of the opening and move upward. The complex additional opening elements are connected to the crate by self-tapping screws at 301 pitches through the sight. At the corner joints of the additional elements, they are cut off on the element and then folded onto the lower element. When framing the opening, simple corner bars can be used, which are installed after the panel is installed. Use self-tapping screws to load the simple strip bait into the crate with a step length of 201-411 mm, and finally fix it after alignment. In addition to complex additional elements, you can also use composite additional elements-docking bars, outer and inner corner bars. The overall additional element consists of two parts-lower and upper straps. Install the side panels along the fixed bottom plank, paying attention that the required temperature difference between the side plank and plank is 5-7 mm; 3. Fix (insert/pull out) the top plank of the extension into the previously installed bottom plank until it clicks In place. No need to use self-tapping screws for additional tightening.
To prevent snow, sloping rain and wind from entering the interior of the ventilated facade, it is recommended to use a universal seal. The sealant must be placed in the corner area along the start, end and seam strips and around the opening.
They are installed from the Simpsonville top to the bottom of the facade. The side panels are installed from bottom to top. During the installation process, please don't forget to remove the protective film!
When fixing the wall panel, screw the panel from the center to the edge. The self-tapping screw is accurately screwed in the center of the perforation, so that the panel can move horizontally freely. The openings in the side panels for the exits of templates, wires, pipes, etc. Sometimes it is difficult to connect the panel to the corner of the lock in some cases. In this case, it is recommended to trim the corner of the connecting panel slightly with metal scissors. Use a rubber mallet to tightly bond the panels.
The panels are installed to move from the back of the building to the gable. 
In this way, there is a gap of 11 mm between the side panels and the rigid ribs of the wood board so that it may expand due to temperature differences.
Until it stops, then take it to the next column. The side panel should be inserted into the two straps (butt, corner) at the same distance; 6. Butt the side panel to the front panel, and fix it to the crate with self-tapping screws. Similarly, side panels are installed around doorways and other openings. Pages 5-6 introduce the installation process of expansion components.
It is carried out from the top to the bottom of the facade. The perforated part for fixing the panel (lock) must be at the bottom. According to the effective width of the side panels -361, calculate the number of panels required for installation along the height of the facade. Start finishing the edge of the outer corner of the bar as the lower reference point; upper-start to modify the upper boundary of the bar. If the number of panels is not complete, cut the remaining (topmost) panels to the required width.
Immediately before installation, it is worth applying markings on the exterior wall to maintain the level of the installed panels. The marking should indicate the bottom edge of the panel to be installed, which will allow you to accurately observe the seat of each panel. 
To complete the installation of the next area of the facade, insert the last side panel with a lock at the corner of the start trim. This avoids the overlap of the wooden boards during the thermal expansion process, thereby avoiding the corrugation effect of the wall panels. Install complex docking stations.
Install intricate inner and outer corner panels. The plank is installed at the junction of the two walls; leave the distance required for the overhang or ceiling at the top.
If the project requires the installation of built-in lights, the distance will increase by the number specified in the light technical requirements. Use self-tapping screws to lure the strips into the crate. After alignment, they are finally fixed in increments of 201-401. The gap between the self-tapping screws and the strip is 0.8-1. Install all the panels in the crate with self-tapping screws, with a distance of 201-401 mm, then simple corner strips can be installed. It starts from the bottom of the surface to be installed on the cornice. Insert the lower edge of the first side board under the rolled part of the initial wooden board, and then fix the upper part of the board with screws to the slat or directly to the wall of its curtain wall. The subsequent lines are set by analogy. The panel on the next row will snap into the lock of the panel on the previous row (Figure 27). Temporarily insert the upper part of the last side panel into the final strip, insert the lower side panel into the penultimate panel, and then snap it in for final fixation. If the size of the top side plate does not match the required size, use a special puncher to cut the plate to the required size. The distance between the special punch and the cut is 6, apply a groove (hook), and then Wrap under the final strip and snap into the bottom plate.
It starts from a corner of a building or opening, and the lowest point of support is the bottom/blind area. For aesthetics, you can use decorative strips. The edges without perforations face the initial installation line and are inserted into the complex strips/frame additional complex elements (if any) at the corners.
The wall panel must be temporarily fixed to the lower right or lower left corner with self-tapping screws. With the help of the building level, the wall panel is aligned vertically, and then the final fixing is carried out. The deviation of a side panel from the vertical shall not exceed 6 mm along the entire length of the panel. When installing the wall panels, the panels must be aligned along the bottom cutout. Subsequent panels will snap into the panel lock on the previous row. The part of the wall panel that exceeds the size of the building is cut off on the installed part. If complex corner bars are used, the size of the panel must be adjusted in advance to the length of the surface to be installed.
After completing the installation work, the building debris should be removed, the remaining protective film should be removed from the surface of the external wall, and the watering can should be used to repair the cuts, scratches and abrasions. The damage has been treated with white alcohol before, and the deep damage (to the metal Layer) is divided into two layers. Curtain wall maintenance includes regular cleaning, inspection and repair of scratches. Use a damp cloth made of viscose cotton material or a stream of water at 2-3 atmospheres for cleaning. Use a cloth and non-abrasive household cleaner to remove stubborn dirt, and then rinse the treated area with plenty of water from top to bottom. It is recommended not to place structures on ventilation structures that are not provided in the design documents (for example, placing advertising signs). How to Repair Drywall