Earth Craft House

EarthCraft House is a green building program that serves as a blueprint for healthy comfortable homes that reduce utility bills and protect the environment. The aim of the program is to help home builders be leaders in smart growth management and environmental stewardship.

Section: Energy Efficient Building Envelope and Systems

Category: Required Air Sealing Measures

-Gaps in exterior wall sheathing sealed
-Sheathing penetrations sealed (including exterior light fixtures
-Air barrier installed behind tubs and showers on insulated walls
Relevant Products:
ZIP System® wall sheathing is a continuous air barrier and can help earn credit in this category.
Prerequisite for earning points within the category

Category: Blower Door Test

-Required: Blower door test result < 0.50 cfm50 /square foot of building envelope - 25 Points
-Test result < 0.4 cfm50 /square foot of building envelope (required tiers II & III)
-Test result < 0.25 cfm50/square foot of building envelope (fresh air ventilation required) - 35 Points
Relevant Products:
ZIP System® wall sheathing is a continuous air barrier and can help earn credit in this category.

Section: Resource Efficient Design

-Floor joists @ 24 in. centers (all floors) - 5 Points
-Floor joists @ 19.2 in. centers (all floors) - 3 Points
-All wall studs @ 24 in. centers - 3 Points
Relevant Products:
AdvanTech® flooring can be used at both 24 and 19.2 in. centers.

ZIP System® wall sheathing and AdvanTech® wall sheathing can be used at 24 in. centers.

Section: Durability

-Framed walls covered with drainage plane - Required
-Drainage plane installed with all seams and edges sealed - 1 Point
-Window, door pan and sill flashing integrated with drainage plane - 2 Points
-Window and door head flashing integrated with drainage plane - 2 Points
Relevant Products:

ZIP System® wall sheathing is a water resistive barrier and can help earn credit in this category.

Section: Indoor Air Quality

-Subflooring urea-formaldehyde free - 1 Point
Relevant Products:

AdvanTech® flooring contains no urea-formaldehyde.

Section: Bonus Points

-Use building materials extracted, processed and manufactured with 500 miles of site (0.5 pts each, max 5 pts) - .5 points per item
Relevant Products:
AdvanTech® flooring, sheathing and rim board, ZIP System® roof and wall sheathing. Check with your local retailer to determine if your project qualifies for this category based on your project location’s proximity to Huber manufacturing location.