2.0402.1 Drainage

Topic: 
Moisture
Subtopic: 
Drainage
For supporting material, see Building America Solution Center.
Desired Outcome: 
Move water away from home
TitleSpecification(s)Objective(s)
2.0402.1a
Work assessment

Installer prework assessment will be conducted to determine:

  • Standing water
  • Positive grade/drainage
  • Conditions of gutter system
  • Vegetation/shrubbery
  • Settling of home
  • Leveling of home

Ensure no organic material is under the supports, including topsoil and roots

Verify scope of work

Ensure that work space is ready for work

2.0402.1b
Corrective action

Ground will be properly graded to provide positive slope (1" per foot)away from home

Gutter and downspouts will be installed or repaired

Vegetation within 36" and encroaching on home will be cleared or trimmed if occupant approves

Home will be leveled to compensate for settling or improper installation

Ensure positive drainage

Maintain ventilation around home

2.0402.1c
Occupant education

Occupant will be educated on the benefit of trees and shrubs to reduce heat gain and provide wind breaks in high wind locations

Occupant will be educated on the need to maintain positive drainage (e.g., gutters, down spouts, grading) and maintain ventilation

Maintain durability

Ensure water is moved down and away from home

TitleSpecification(s)Objective(s)
2.0402.1a
Work Assessment

Installer prework assessment will be conducted to determine:

  • Exterior grading
  • Roof drainage
  • Exterior waterproofing
  • Interior grading
  • Interior drainage

Verify scope of work

Ensure that work space is ready for work

2.0402.1b
Corrective Action

Ground will be sloped away from the house at a rate of 6" of fall within 10'

If downspouts are present (e.g., gutters, overhangs, French drain), they will be drained a minimum of 6' away from the house

Foundation walls will be waterproof. Exterior foundation drains will be installed

Interior grading will be sloped to one or more collection points, if possible

One or more drains or sump pumps will be installed

Drain water away from the foundation wall

Prevent roof water from leaking into the crawl space or basement

Prevent water from leaking into the crawl space or basement

Collect interior water for removal

Remove interior water from the crawl space or basement

2.0402.1c
Occupant Education

Occupant will be educated on the benefit of trees and shrubs to reduce heat gain and provide wind breaks in high wind locations

Occupant will be educated on the need to maintain positive drainage (e.g., gutters, down spouts, grading), exterior waterproofing and interior drainage

Maintain durability

Ensure water is moved out, down and away from home