C200 Week 3

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NATIONAL WOOD FLOORING ASSOCIATION TECHNICAL PUBLICATION No. C200 Price: $30 ® ® PROBLEMS, CAUSES AND CURES OF HARDWOOD FLOORS © 2002 NATIONAL WOOD FLOORING ASSOCIATION NATIONAL WOOD FLOORING ASSOCIATION TECHNICAL PUBLICATION No. C200 CONTENTS PROBLEMS, CAUSES, AND CURES 3 INTRODUCTION How to inspect a floor Tools for inspection Determine the problem Find the cause Questions for the consumer Questions about the history of the job site Questions about the job site at the time of inspection Questions about the home’s exterior Questions about the history of the wood flooring Recommend the repair 1 1 FINISH PROBLEMS Alligatoring Applicator Streaks Bleed Back Bubbles Chipping…show more content…
Cure: Remove the water and dry the floor as quickly as possible. Elevate the temperature, dehumidify and increase air flow using fans. In basement houses, dry from below. In crawl space homes, use exhaust fans. If the flooding was of a long duration on a surfacefinished floor, rough sanding to remove the finish will accelerate drying. Lightly sand at a slight angle of about 7 degrees. Or, use a buffer or orbital sander with a 120-grit screen backed by a soft pad. (Sanding this way should not remove the edges, which could cause crowning later). Do not sand down to bare wood, but rather remove the majority of the finish. Do not repair the floor until moisture meter readings on the top and bottom of the boards and subfloor are at normal levels. When flooring is stabilized, determine the damage. If the flooring has loosened from the subfloor, repair the necessary areas or the entire floor. If it is cupped, sand it flat. If the floor is flat, fill if necessary and screen and recoat. If the subfloor is plywood over concrete, it is unlikely that the plywood and concrete subfloor will dry out in a reasonable time. Full removal to concrete usually is best to allow the slab to dry. In cases where you have determined that the flooring system has not returned to normal levels, do not succumb to pressure from involved parties for a quick fix. If you must proceed, have a full release signed due to the risk of more moisture…show more content…
Cause: • Movement of the wood flooring system, subfloor system or underfloor supports. • Inadequate or improper nailing. • Weak subfloor. • Improper subfloor material. • Insufficient or incorrect adhesive. • Floor subjected to excessive moisture or excessively dry conditions. Cure: Noises in only certain areas may be fixed by injecting adhesive into the problem area, screwing the floor down from below, strengthening the subfloor from below or using facenails or screws and plugs. Squeaks also may be lubricated with graphite, wax or baby powder, although such solutions will contaminate the floor for future finishing. Floors that are noisy and loose throughout the entire area usually have to be pulled and reinstalled, correcting the problem—whether it is caused by the subfloor, fastening schedule or

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