NOTE: All materials must be completely inspected and inventoried before installation. It is the policy of J.M. McCormick Hardwood Flooring to replace any defective material prior to installation of the product . Once the flooring has been installed, the installer/owner assumes all liability thereof.
It is the installer/owners responsibility to ensure that thejob site conditions are correct for wood flooring installation, i.e.: sub-floor soundness, all moisture precautions and any sub-floor preparation that is required.
New wood type sub-floors should be inspected for moisture prior to installation. Most wood or plywood sub-floors should not exceed 14% moisture content or no more than a variance between the sub-floor and the wood that is to be installed of 4% difference. The conditions will vary with geographic locations.
Staple Down/Nail Down installation instructions:
1. Thoroughly clean the sub-floor.
Sub-floor should be completely free of debris and any foreign objects that could interfere with the Hardwood flooring laying flat.
2. Sub-floor requirements.
. The sub-floor should be level within 3/16" over a 10' radius. If leveling is required, it should be done so to meet the specified requirement. Proper nailing of sub-floor is a must to ensure a sound hardwood floor installation. Plywood or OSB are acceptable subfloors. Particleboard is NOT an acceptable sub-floor.
. Sub-floors should be at least 5/8" minimum thickness but %" is preferred.
. Sub-floors should be installed at right angles to the existing floor joist system, and should also span at varying end joints over the joist system. This is so that the end jomts of the sub-floor break across different points throughout the floor.
. Install I 51b. saturated felt paper over sub-floor. Butt the joints and install the paper wall to wall.
3. Installation
. Flooring should always be installed at right angles to the floor joists, and if possible to the longest dimension of the room.
. Always square the room and use chalk lines as reference points for installation.
. The correct amount of expansion space is said to be the thickness of the material that is to be installed
. The first rows should be installed and countersunk with the tongue facing into the room, so that installation is groove into tongue. . Always stagger end joints so as to avoid creating a pattern during installation. Distance between end joints should be at least 4". If using pneumatic nailing device, it is a good idea to always check the depth of the nail/staple that has been set with the gun. A good starting PSI is between 75-85 psi. Always check to ensure the tongue of the material that has been installed is secure and not split or damaged due to the air pressure administered.
. Nailing schedule should be every 6" and at least 1-3" from each end joint. This ensures a good sub-floor to floor contact.
. In most cases the last and first few rows must be face nailed and countersunk. A brad nailer works best in these areas.
General Tips
- A vapor barrier must be present when installing engineered hardwood flooring in a below grade application.
- Hardwood flooring should be one of the last items installed on a job. All work involving water or moisture (plumbing, acoustical ceilings, drywall taping, etc.) should be completed prior to wood flooring being installed.
- 3/8 Engineered flooring can be installed on, above, or below the outside soil line.
- Below-soil installations and installations in structures that have planters attached to adjoining walls require that not only the floor, but all surfaces exposed to the ground be effectively water-proofed.
- The installation site should have a consistent room temperature of 60-70 degrees F for a minimum of 5 days prior to installation of any hardwood flooring product.
SUBFLOOR TYPES
- APA approved 5/8" or better plywood, exterior grade
- When installing approved plywood, refer to specific structural panel and manufacturer's instructions.
- 3/4 (23/32) OSB-PS2-92
- Over existing wood floors, install at 90 degrees
- Unsealed concrete slabs
SUB FLOOR MUST BE
CLEAN - scraped or sanded, broom clean, and smooth. Your iub floor should be free of wax, grease, paint, oil, sealers and other debris. Make sure there are no loose areas and that the sub floor is structurally sound.
LEVEL/FLAT - within 3/16" in 10' radius and/or 1/8" in 6' radius. Sand high areas or joints, fill low areas (no more than 1/8") with a cement type filler no less than 3,000 psi strength.
STRUCTURALLY SOUND - nail or screw any loose areas that squeak. Replace any water-damaged sub flooring or underlayments.
DRY .- check moisture of sub floor. Moisture content of sub floor must not exceed 14% on a wood moisture meter, or read more than a 5% difference than moisture level of product being installed.
CONCRETE SLABS
You can glue 3-ply and 5-ply flooring directly to the concrete. DO NOT use a concrete sealer. All concrete sub floors should be tested for moisture content. Initial moisture testing can be done with Phenolphthalein (available at a pharmacy), 3% solution in denatured grain alcohol. Chip the concrete and apply 3 or more drops of the solution to the area. DO NOT APPLY DIRECTLY TO THE SURFACE OF THE CONCRETE, AS THE TEST WILL NOT BE RELIABLE, if the color changes to pink or red, the presence of moisture is indicated. Test several areas, especially near exterior walls and walls containing plumbing.
WOOD TYPE FLOORS
Make sure sub floor is dry and well nailed or screwed down every 6" to avoid squeaking or popping before the floor is installed. Level any raised edges by rough sanding. When installing over old wood floors, install the new flooring at a right angle to sub floor.
RESILIENT TILE & RESILIENT SHEET VINYL
Make sure the vinyl or tile is well bonded to the sub floor. If vinyl or tiles are loose, crumbles, or in poor condition, install an underlayment directly over the sheet vinyl (linoleum) or vinyl tiles. (Note: Do not sand any resilient products, since they may contain asbestos fibers, which may be harmful.) If the tiles or sheet goods are well bonded, clean the surface thoroughly with a good quality household detergent. If vinyl appears to have a wax coating, you must remove wax with an appropriate floor wax stripper. Allow ample drying time.
STEP 1 MARKING YOUR STARTING LINE
- We recommend you install your flooring parallel to the longest outside wall in the room.
- Measure out 5-1/4' for 5' products. Snap a chalk line.
- Do not work off the newly installed flooring.
STEP 2 : SPREAD THE ADHESIVE
- The urethane adhesive should not be applied if sub floor or room temperature is below 60 degrees F.
- pread sufficient amount of adhesive with a 3/16" x ¼" x '/2" notch steel trowel in an area that can be covered in 30 minutes.
- Hold trowel at a 45-degree angle. The trowel will leave ridges of adhesive and will leave very little adhesive between the ridges. This will give you the recommended spread rate of approximately 50 sq ft per gallon. If adhesive dries quickly, remove and spread adhesive to achieve proper bonding to the sub floor. OPEN TIME MAY VARY DUE TO INDIVIDUAL CLIMATE CONDITIONS.
- During the installation, occasionally remove a flooring unit from the sub floor and inspect the back for proper adhesive transfer. Glue transfer of at least 80% is necessary to ensure sufficient holding strength.
STEP 3 INSTALLATION OF FLOORING
- Always refer to the specific instructions on the urethane adhesive label. Flash time/set up times may vary with low solvent adhesives.
- Ensure the correct set up time is utilized prior to installing the planks.
- DO NOT slide the planks through the adhesive when placing them in position. Simply place the long tongue into the adjoining long groove as close as possible to the short adjoining and adjust into final position. Planks should be butted to adjoining plank. A ramdon mixing of the various surface graining configurations is suggested to enhance the natural beauty of the floor. Floor should be installed from several cartons at the same time to ensure a good color and shade mix.
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