green building techniques for rehab emily mitchell

Green Building Techniques for RehabEmily Mitchell

““What ought to be, can be, if we have the will to make it so.”What ought to be, can be, if we have the will to make it so.”- James W. Rouse- James W. Rouse

Extending Enterprise’s Vision

Clear Cutting of Forested Land

Sprawl

Landfills at Capacity

Vacant and Abandoned Homes

Air Pollution

Drought and Desertification

Greenwashing

IntegratedDesign

Energy Efficiency

Location and Neighborhood

Fabric

Materials Beneficial to the Environment

Operations and MaintenanceHealth

Water Conservation

Green Communities Criteria

Building Typologies

Broadway Crossings – Seattle, WA

Roanoke & Lee – Blacksburg, VARoanoke & Lee – Blacksburg, VA Westgate Terrace – Rochester, NYWestgate Terrace – Rochester, NY

Construction Types

Geographic Locations

Interdisciplinary approach to integration of green measures Overview of specifications and methods to accomplishing green

objectives

Category 1: Integrated Design Charrette

Tremont Point, OhioTremont Pointe - Cleveland, OH

Category 2: Site Planning and Layout

Site Plan

Context Map

KEY

----- .5 mile radius

● Schools

● Libraries

● Retail

● Doctor / Dental Clinics

● Grocery Store

Atonatl Condominiums - Washington, DC

14

Category 3: Site Improvements

Spring Terrace – Austin, TX

17

Toilet = 1.3 GPF or less, that meet performance

specificationwww.cwwa.ca/freepub_e.asp

Front load washers save 60%+

Showerheads = 2.0 GPM or less

Faucets = 2.0 GPM or less

Category 4: Water Conservation

Minimum Energy Performance

New Homes (1-3 floors) - Energy Star Standards

Modeling to meet HERS requirements.

Mid-rise/high-rise - 15% better than ASHRAE 90.1

Modeling required, but no 3rd party testing.

Renovation - 15% improvement from existing

Requires energy audit and analysis.

Category 5: Energy Efficiency

HERS Rating Certificate

Tight Construction

Improved Insulation Systems

Poorly Installed Fiberglass Batts

What’s wrong with this picture?

Insulation

HVAC System Efficiency

Whole - building energy performance

Red Flags

ENERGY STAR Appliances and Efficient Lighting

Efficient Lighting

Red Flags

Ripley Gardens – Minneapolis, MN

Category 6: Materials Beneficial to the Environment

Waste Reductions – delivery or disposal?

Slides Courtesy of Tom Phillips, Seattle Housing Authority

Category 7: Healthy Living Environments

Reducing VOCs

Ventilation – Whole House and Exhaust

62.1 applies to all spaces intended for residential structures except those within single-family houses, multifamily structures of three stories or fewer above grade.

62.2 applies to spaces intended for single-family houses and multifamily structures of three stories or fewer above grade.

ASHRAE Ventilation Standards

Kitchens vented to the exterior

At least 100 CFM flow or 20 CFM continuous run

Kitchens Vented to Exterior

Ventilation

Red Flags

Red Flags

Moisture Mitigation

Zone 1 - Highest Potential (greater than 4 pCi/L)

Zone 2 – Medium Potential (greater than 2 pCi/L)

Radon Mitigation

Viking Terrace – Worthington, MN

Manual & Orientation/Training

O&M info

Warranty procedures

Thermostat settings

Community amenities

What to expect

Category 8: Operations and Maintenance

Project team indicates intent to meet criteria.

Identify mandatory measures and sufficient number of optional points

Submit documentation – site plan, context map

Inspections and testing conducted during construction to verify energy performance.

Key project team members certify that criteria has been built into plans and specs.

Follow-up inspections and performance testing conducted post-construction.

http://www.greencommunitiesonline.org/tools/certification_process.asp

Green Communities Certification Process

Research Highlights

On average, it costs $5 per square foot to meet the mandatory Green Communities Criteria.

Buildings meeting the basic Criteria cut water costs by 20 percent and energy costs by 25 to 30 percent.

Healthier homes designed to reduce childhood asthma result in a 60 percent increase in symptom-free days; annual emergency room and urgent care visits fell by 67 percent.

Incremental Costs, Measurable Savings report available at: www.enterprisenextgen.org

www.greencommunitiesonline.org