Buildings > Exterior Wall
Conduct the delivery of water from the exterior envelope, making
sure that gutters and downspouts terminate on splashblocks (only
if the percolation rate of the soil allows for suitable reentry
of the water) or, better, are conducted away from the site to
a dry well
Interior Drainage: Install submersible pumps in basement to prevent
rising ground water from migrating through basement floor. Connect
dehumidifiers to drainage system.
Gutters/Downspouts: Repair and replace damaged or missing parts.
Consider replacement using more historically appropriate design
and/or materials. Tie into perimeter drainage system.
Remove tree limbs hanging over gutter system, and inspect bi-annually.
Grade: Ideally, clear foundation of plantings within four feet
(4'). Regrade to achieve nine inches (9") of clearance between
ground, siding, corner boards, or water table. Create positive
grade away from structure to facilitate drainage
Masonry foundation: Inspect and monitor foundation for signs
of settling. Excavate, inspect and dampproof/waterproof foundation
below grade. Repoint using appropriate lime-rich mortar.
Interior foundations: Inspect and monitor interior walls of foundation
for signs of settling. In general, do not apply coatings in an
effort to reduce migration of moisture from exterior: address
the underlying cause of the problem first.