REPORT:SURFACE WATER CONTROL
Proper drainage around
the house is the best insurance
against damp basements and foundation movement. A drier basement and
will reduce mold and fungus growth that can be a source of respiratory
discomfort for people who suffer from asthma and allergies. Ideally,
should be 1" per foot slope for the first 10' around the house. The
used to form this slope should be fairly impermeable, such as a top
with a high clay content. If this grading runs into an uphill portion
the yard, it should be drained into a swale with 1/4" per foot slope
the water around and away from the house.
Gutters and down spouts also can be a source of unwanted
moisture. Gutters should be cleaned out regularly. Down spouts should
discharge at least 5' away from the foundation. Down spout extensions can be made
by cutting a 10' length of down spout in half. A U can be trimmed from
one end so it can be tipped out of the way when mowing the lawn.
source of moisture is sprinkler heads. Sprinklers
should be set so they don't irrigate any closer than 5' to the
Plastic films should not be used as a weed barrier under rock or mulch
landscaping close to the house. These films will trap moisture. There
breathable plastic fabrics that should be used in these applications.
areas of expansive soils, consider Xeroscaping using
native plants that require a minimal amount of watering. In these
it is especially important to keep the soil around the foundation as
as possible to minimize any potential foundation movement. For
landscaping information, read Special
Publication # 54, Home Landscaping
and Maintenance On Swelling Soils. This booklet is available from
Geological Survey, 303.839-2611.
PROFESSIONAL HOME INSPECTIONS, INC. copyright 2013