Westlawn Civic Association
Our Community in Fairfax County, Virginia
Proper Caulking of Showers and Tubs
By State Farm, November 2001

A small leak from a bathtub or shower can cause extensive amounts of damage, especially when the leak goes unnoticed for a long time.  The water gets inside the walls or into the floor and causes the wood to rot.  Often times, the homeowner doesn't realize there's a problem until a wall starts to bow or the floor gets spongy.  At that point the repairs can be extensive, requiring removal and replacement of parts of the floor and/or walls and the affected finishes.  Like most insurers, State Farm does not cover these types of losses and the repair costs become the homeowner's responsibility.

To avoid such a mess and inconvenience, routine inspection and some preventive maintenance are needed.  Homeowners should look first for cracks or holes in the caulking at the top of the bathtub or shower base.  Also look for mildew and mold on the walls, especially at the intersections of vertical and horizontal surfaces and at caulked joints.  The mold and mildew may be a sign of water getting behind the surface.

If any of these problems are found, re-caulking of joints may be required.  The most important thing to remember when caulking a shower or tub is to have a continuous, watertight seal along the top edge of a bathtub or shower base.

To repair a caulked joint:

Tub-and-tile caulk can be purchased at most hardware stores.