7 Signs You May Have a Drainage Problem
Article From Houselogic.com
By: Jeanne Huber
Published: August 28, 2009

Finding and addressing drainage problems when they're smaller and easier to fix can save you thousands of dollars and plenty of
headaches down the line.

You don't need to be a house inspector to know that puddles in the basement or a lake on the front lawn are signs of drainage trouble. But
not all drainage problems are so obvious. Some can be hard to spot unless you know what to look for. Here's how the pros read seven of
the more subtle signs of potential water damage, and why you'll save big bucks if you tackle these problems now instead of later.


1. MALFUNCTIONING GUTTERS

Rain cascading over the edge of a gutter means that dead leaves and debris are blocking the flow. But that's not the only sign of
malfunctioning gutters. Mud spattered on siding or paint peeling off the house in vertical strips are other indications. If left unchecked,
overflowing gutters can rot siding, ruin paint jobs, even cause structural damage.
Best case: Leaves are clogging the downspout, and you just need to clear them out or hire a pro to do it (about $75).
Worst case: Gutters are undersized or improperly pitched and need to be replaced or reinstalled. That could run a few thousand dollars,
but it's still cheaper than new siding.

2. DOWNSPOUTS THAT DUMP

Each inch of rain that falls on 1,000 square feet of a house produces more than 600 gallons of runoff, enough to fill 10 bathtubs to the
brim. Dumping that much water too close to the foundation can send it right into the basement, where it can ruin furnishings and flooring
and damage mechanical equipment.
Best case: You can add gutter extensions (about $10 for a 10-foot length) to carry the water at least five feet away from the house.
Worst case: The downspouts drop straight down behind large shrubs or other obstacles. An installer may be able to relocate the
downspouts (about $150 for each one moved). If not, you'll need to uproot landscaping to add extensions or underground
piping(http://www.houselogic.com/articles/8-solutions-to-common-wet-basement-problems/)-a sacrifice worth considering if you've got
water infiltrating the basement.

3. WATER STAINS IN THE BASEMENT

Depending on where the stain appears, you can tell whether the problem is caused by surface water, which can be easy to deal with, or
water traveling underground, a more complex situation.
Best case: Stains are high on the foundation wall, indicating that the water is coming (or once came) from an overflowing gutter or surface
water directed at the house.
Worst case: The stain extends in a line around the basement, indicating a high-water mark that may recur when heavy rains hit, either
because of underground water or because the basement floor lies below the level of municipal storm drains that back up. In that case, an
interior drain system and sump pump(http://www.houselogic.com/articles/8-solutions-to-common-wet-basement-problems/) (around
$3,000) are essential for getting the water out if the problem can't be resolved some other way.

4. CRACKS IN THE FOUNDATION

Hairline cracks, as thin as thread, are just cosmetic. Bigger cracks may or may not spell trouble. It depends on the width of the crack, how
deep it penetrates, and whether it's growing.
Best case: A crack appears where the builders finished installing one load of concrete and began pouring the next. Such cracks usually
don't penetrate all the way through. And even if they do, as long as they're stable you can patch them with hydraulic cement or
polyurethane caulk for less than $20.
Worst case: Cracks are continuing to widen, indicating that a drainage problem may be ruining the foundation. Call a structural engineer
(not a contractor or waterproofing expert) to diagnose the problem, assess the risk, and suggest a repair.

5. FLAKING AND DEPOSITS ON WALLS

If you see areas of white or gray crust on the basement walls, that's efflorescence, mineral deposits left behind by evaporating water. Or
the wall may be flaking off in big patches, a condition called spalling.
Best case: The efflorescence points to a place where moisture is condensing. It doesn't cause structural problems, but you may want to
scrape off the crust if it looks ugly.
Worst case: The wall is spalling because water is getting inside the masonry. Spalling can be just superficial, but if it's deep and
widespread, it may be a sign of freeze/thaw damage that could progressively weaken the foundation.

6. MILDEW IN THE ATTIC

The attic might seem like a strange place to look for drainage problems, but mildew on the underside of the roof can be a tipoff to serious
trouble at the ground level.
Best case: Bathroom fans are spewing hot air directly into the attic, where it condenses on the cold back side of the roof and causes
mildew. Venting the fan through an outside wall or the roof (about $200) solves the problem.
Worst case: Moisture from the basement or crawl space is rising through the house and condensing on the underside of the roof. In that
case, you've got to find and stop the source of the dampness under the house. Then you may have to replace roof sheathing and
shingles, a job that runs $6,000 to $9,000 for the typical house.

7. MIGRATING MULCH

When soil doesn't drain properly, rain may run off in sheets, carving gulleys in the landscape, dumping silt on pathways, and carrying
piles of mulch or wood chips where they don't belong.
Best case: For a few hundred dollars, you can hire a landscaper to create a simple berm (a soil mound) or swale (a wide, shallow ditch)
to redirect the water flow(http://www.houselogic.com/articles/8-solutions-to-common-wet-basement-problems/) away from the house.
Worst case: You notice the problem when your concrete patio cracks, or paving stones start popping up, because the gravel or sand base
material has washed away. After redirecting the water, you'll need to excavate the patio and start again.
Jeanne Huber is the author of 10 books about home improvement and writes a weekly column about home care for The Washington
Post. She solved her first drainage mystery when her family's frequent sneezing attacks led her to discover mildew coating the underside
of their house's roof. Turns out basement flooding (see Sign #6) was to blame.

Reprinted from HouseLogic (houselogic.com) with permission of the NATIONAL ASSOCIATION OF REALTORS (R).
Copyright 2010. All rights reserved.
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