2.0402.1 Drainage | Standard Work Specifications for Home Energy Upgrades

2.0402.1 Drainage

Topic:

Moisture

Subtopic:

Drainage

For supporting material, see Building America Solution Center.

Desired Outcome:

Move water away from home

Manufactured Housing Single-Family Homes

Title	Specification(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

Title

Specification(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

Title	Specification(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

Title

Specification(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