Green

Construction

Techniques in

Mutual Self-

Help Housing

by

Housing Kitsap

WHAT?

What exactly is “Green Building”?

The practice of increasing the

efficiency with which buildings and

their sites use energy, water and

materials through better site design,

construction, operation,

maintenance and construction

waste removal.

HOW?

How did Housing Kitsap begin building Green?

1. Embracing the “Green Building” Concept

2. Re-designing House Plans

3. Researching the Best Green Products

4. Determining Affordability

5. Incorporating Construction Waste Management Systems

6. Educating and Engaging Mutual Self-Help Homebuilders in Green Building Practices

WHY?

Why Should Anyone Build Green?

1. Energy Efficiency

2. Air Quality

3. Water Conservation

4. Comfortable and Durable

5. Lower Utility Cost for

Homeowners

6. Reduces Environmental

Impact

Hydronic Heating

Space Heating Piping Installed by Mutual Self-Help Homebuilders

Energy Efficiency

Ductless Mini

Split Heat Pump

for when gas is

not available

Energy Efficiency (cont.)

Heat Pump

Water Heater

Mini-Split Ductless Heat Pump

Raised Heal

Trusses

Advanced

Framing

Energy Efficiency (cont.)

Extra Air Sealing

Energy Efficiency (cont.)

Blower Door Testing to Verify Homes

Meet (or beat) Northwest ENERGY

STAR® Standards

Homes are required to have under 3 Air

Changes at CFM 50.

The average home built with Housing Kitsap is just 2.5 air changes.

Energy Efficiency (cont.)

Energy Efficiency (cont.)

Bibs Blown in Insulation

R-23

insulation

value in 2x6

wall

Blown in

insulation

fills around wires

and pipes with

few voids

Energy Efficiency (cont.)

ENERGY STAR® Appliances

Accurate Thermostats

Older thermostats

allow large

temperature cycles

Water Efficiency

Low Flow

Faucets/Shower

Heads

Dual Flush Toilets

Low

Maintenance

Landscaping

Water Efficiency (cont.)

Low Flow Faucets

Dual Flush Toilets

1.3 or .8 gal per flush

Older models 1.6 gal per flush

Water Efficiency (cont.)

Low Maintenance

Landscaping

Air Quality

Low VOC

Paints/Sealants

Continuous Fan

Ventilation

Tight Building

Envelope

Green

Carpets/Flooring

Air Quality (cont.)

Fresh Air Intake with Continuous

Ventilation

Window Ports High-Efficiency Fan

4-12 Watts Consumed

Fresh air enters a home through its window ports and is exhausted out through a fan for a healthy, air-tight Building

Detailed Air Sealing

to Keep Garage Air Pollutants Out

Air Quality (cont.)

Proper Flooring Choices

Limit Carpet to less than 40% of a home. Carpet collects dirt and pollutants making it hard to keep clean.

Green Spec Healthy Laminate

and/or Vinyl Flooring

Limit Carpet to Bedrooms

and Second Floor Spaces

Utility Comparison

Background:

Forced Air Heat

3 Bdrm/1296

2 Occupants

Work Days

Four Month Average Electric $68.25 Gas $94.75

Winter Utility Billing

Utility Comparison (cont.)

Background:

Ductless Mini-Split

Heat Pump

3 Bdrm

2 Occupants

Work Days

Four Month Average Electric $63.50 Gas $45.25

Winter Utility Billing

Mutual Self-Help Construction

Completed

Jan 2010

Why We Are Here

Completed

Oct 2012

Mutual Self-Help

Homeowners & Volunteers

Mutual Self-Help

Construction Details

30% Fly Ash in All Concrete a

Good Use of Coal Power

Generation By-Product also

Saves Natural Resources

Universal Foot Prints Make

Plans Adaptable to Many

Sites

Homes are Modest in Size but

not Features

Good, Healthy and

Affordable Housing

Thank you to all the organizations who make Housing

Kitsap’s Home Ownership Programs possible.

Thank You

2011/2012 AWARD

WINNER