Lump In Floor Under Carpet

Assuming the carpet installer didn t forget to clean the floor before laying the carpet a lump usually starts when the carpet loosens or pulls away from the wall.

Lump in floor under carpet.

Typically carpet is attached to floors by tackless strips or double sided tape. I recently had a client with a home in contract that had little bumps under the carpet in several different spots in the living and dining room which was about 15x30 feet in size. Similarly hardwood boards can lift when held by insufficient fasteners or when the subfloor deteriorates which is most common with particleboard. You wouldn t believe how much crap the builders leave behind before the carpet and drywall goes up.

The lumps underneath my carpet were clumps of dried up drywall compound. Lumps generally occur in carpeting from poor carpet installation severe humidity affecting the carpet adhesive or carpet seams buckling from wear and tear. Carpet wood and vinyl will all relay concrete problems upward. Instead a dip in the carpet could mean that a floor joist has sustained.

If you can feel a soft spot in the floor under the carpet the subfloor has likely been weakened or damaged. This isn t the same as having a floor squeak when you step on it which simply indicates that the subfloor isn t tightly fastened to the floor joist in one area. The resultant lump is easily noticeable under carpet and you may even feel it under a laminate floor. A wood floor joist will deflect or sag near the center of the joist under the weight of the flooring and furniture.

Because soil shifts and house frames settle there is usually a slight variation in floor level. When a joist sags the end that is past the center beam will be pushed up in an. Sanders and fillers can help level out concrete floors before installation to fix this problem. How to repair a hump in the floor.

How to fix a lump in the carpet. Since the buyer was an engineer he decided to investigate the situation himself rather than call an inspector. Not only are lumps unattractive and cause eye sores but they are a hazard that causes trips and falls.