Luan Panels: Information
Luan Board
Luan Ply: Information
Luan Mahagony
Luan Vaneer: Description
How to Bend Plywood
Attaching Luan Plywood to the subfloor as with other underlayments use fasteners, which should each penetrate the underfloor (subfloor) by about 3/4's of an inch. This should not protrude into the subfloor if possible by more than 1/8 inches. If the underlayment is being installed through older floors, or floor coverings that have been there previously, then the depth of the floor covering should be considered before choosing the nail type to adfix the plywood to the subfloor.
Floated Subfloor System
To begin, you'll need two layers of 3/8-inch minimum CD Exposure 1 Plywood subfloor panels (CDX) 4-foot by 8-foot sheets. First, position the plywood layer with its edges parallel to the wall. Do not fasten and leave 3/4 of an inch of space between the wall and plywood. Plywood panels should be set down with 1/8-inch gaps between sheets. Place the second layer perpendicular or at a 45 degree angle to the first layer. The second layer should also be set down with 1/8-inch gaps between sheets and 3/4 of an inch of space between the wall and plywood. Staple or screw and glue – using urethane or construction adhesive– the second layer to the first on a 12-inch interior grid pattern, with 6 inches on the perimeter.
Be careful not to penetrate the vapor retarder. In on-grade and below-grade applications, add vapor retarder before applying underlayment. Alternate Subfloor System Use a minimum 3/4-inch CD Exposure 1 Plywood sheathing, 4-foot by 8-foot sheets. Begin by cutting sheets to 16 inches by 8 feet or smaller panels, marked 3/8 of an inch deep on back and a minimum of every 12 inches across in width. Place 16-inch planks perpendicular or diagonal to direction of flooring. Stagger panels every 2 feet and space 1/8 of an inch between ends with 3/4-inch minimum expansion space at walls and all vertical obstructions. Glue-Down Sub-floor System Materials include a minimum of 3/4-inch CD Exposure 1 Plywood sub-floor panels, 4-foot by 8-foot sheets.
Cut plywood panels by 2-foot by 8-foot or 4-foot by 4-foot sections. Score the back of the panels half of the thickness on a 12-inch by 12-inch grid. Apply an adhesive approved for plywood installation and recommended by the plywood manufacturer. Stagger sections on the adhesive with 1/8-inch spacing between sheets and a minimum of 3/4 of an inch of expansion space at walls and all vertical obstructions. If necessary, add vapor retarder before applying under-layment, especially recommended if 3/4-inch wood flooring is installed over concrete.
Nail-Down Sub-floor System Get 3/4-inch minimum CD Exposure 1 Plywood sub-floor panels, 4-foot by 8-foot sheets. First, stagger panel joints, allowing approximately 1/8-inch expansion space around panels to prevent edge peaking. Allow a minimum of 3/4 of an inch of expansion space at walls and all vertical obstructions. Panels should be mechanically fastened. Fasteners may be powder-driven pins, pneumatic driven nails, screws, deformed pins or other fasteners suitable for concrete applications. Areas with higher humidity may require additional fasteners. Nail a minimum of 32 shots per 4-foot by 8-foot panel. Also, use a vapor retarder before applying under-layment.
Vinyl flooring is affordable and durable and water resistant which is made in a variety of colours and patterns, making it a first choice in all types of home renovations such as for the bathroom, kitchen and laundry. Once installed it can form tightly with the vinyl flooring and the surface beneath it. So the use of luan plywood underlayment is required. The good news is that it is easy to install for all purposes. While luan plywood is smooth one on surface, it is easy to install below or under vinyl flooring. - Keep in mind it is not always the best fit for all types of vinyl flooring.
Luan is 1/4 thick and it comes in a variety of sheet sizes including 4x8 sheets. It is made from various wood materials and is manufactured by layering thin strips of wood at right angles and then bonding them under pressure to form larger panels. Each luan panel has a rough side and a smooth side. The smooth side faces upwards when installing the vinyl flooring attaching itself to this surface.
Installing Luan Panels
Luan installs on top of a subfloor since the sheets are not strong enough or engineered for that exact purchase. Start in one corner of the room and begin to lay a full panel of luan perpendicular to the form of the subfloor panels. Leave a gap of about 1/16 of an inch between the walls and the luan panel. Use a staple gun to insert 1/4 inch crown staples every 6 inches across the plane of the luan panel and every 2 inches along the edges. Install additional luan panels the same way, and remember to leave a 1/16 of an inch gap between expansion gaps and panels.
Quick Tips
Use a chalk guide line on the underside of the luan panel. Cut the luan panel with a circular saw from the backside to prevent the splintering of the face of the sheet. Luan is lightweight and thin enough that you can cut a smaller area from the top side with a utility knife. Make sure that several pressure cuts in the groove rather than trying to cut through the panel with one forceful cut. Since vinyl flooring shows every bump and groove, it is very important that the staples are flush with or slightly below the surface of the luan plywood. An easy way to check this is by raising the edge of a large metal taping knife over the surface of the luan. If any staples are raised or sticking then you will hear a clicking sound of metal hitting on top of metal. Tap any of the extending staples lightly with a hammer to make sure they are flush with the surface of the luan plywood. Before installing vinyl make sure to sweep and vacuum all the particles and dust from the underlyament of luan.
Things to Keep in Mind
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