Boston Architectural College CEU Weekend 2007
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Transcript of Boston Architectural College CEU Weekend 2007
Boston Architectural CollegeCEU Weekend 2007June 23, 10:30-12:30
Introduction to:
LEED for Homes and ENERGY STAR for Homes
Mark Price
Residential Green Building Project ManagerConservation Services Group
Agenda:
• 10:30 – 10:35 introduction
• 10:35 – 11:00 Overview of LEED for Homes
• 11:00 – 11:25 Green Building Strategies
• 11:25 – 11:35 Break
• 11:35 – 12:15 ENERGY STAR & LEED
• 12:15 – 12:30 Q&A
• Adjourn
What is Green Design?
To significantly reduce or eliminate the negative impact of buildings on the environment and on the building occupants, green building design and construction practices address: sustainable site planning, safeguarding water and water efficiency, energy efficiency, conservation of materials and resources, and indoor environmental quality.
-USGBC
What is Green Design?
How do we love all children of all species for all time?
-William McDonough
What is LEED?
Leadership in
Energy and
Environmental
Design
The LEED Green Building Rating System™ is the nationally accepted benchmark for the design, construction, and operation of high performance green buildings.
LEED-CI
LEED-ND
LEED for Homes
LEED-CS
LEED-NC
commercialinteriors
newconstruction
neighborhooddevelopment
core &shell
CATEGORIES OF LEED
LEED-EB existingbuildings
Commercial Buildings
Residential
• In pilot since late 2005, due to launch later this year – Green Build
• Open to any qualifying projects
• Follows residential code – 3-stories and below
• Concurrent pilots for mid-rise (4-6) and high-rise (7 and up) residential buildings running now
• Differs from other LEED products in delivery system – administered locally by ‘Providers’
LEED for Homes CategoriesInnovation & Design Process (ID)
Integrated project team, plan for durability, allow for innovationLocation & Linkages (LL)
Locate homes efficiently, link to existing infrastructure
Sustainable Sites (SS)Preserve natural ecosystem on the building lot
Water Efficiency (WE)Reduce potable water usage, use rainwater/grey water
Energy & Atmosphere (EA)Reduce emissions caused by energy use, ENERGY STAR
Materials & Resources (MR)Reduce environmental impact of building materials
Indoor Environmental Quality (IEQ)Provide a comfortable and healthful indoor environment
Awareness & Education (AE)Educate homeowners (operators) about green building
LEED for Homes Checklist
• 130 potential credits
• 18 prerequisites
• 16 required credits
• 4 Certification levels1. Certified
2. Silver
3. Gold
4. Platinum
• Flexible
• Evolving
LEED for Homes Rating Guide
www.usgbc.org/LEED/Homes/LEED for Homes Pilot Rating System v1.11a (PDF)
(http://www.usgbc.org/DisplayPage.aspx?CMSPageID=147
184 page companion to the checklist. For every credit:
• Intent
• Requirements• Verifications/Submittals
• Synergies/Tradeoffs
• Additional Information
• Integrated design process
• Durability plan
• Site protection
• Energy Star Home
• Reduced construction waste
• Tropical hardwood restriction (FSC, no lauan)
• Health and safety measures
• Owners manual
Mandatory Measures
Category Mandatory Points PointsMeasures Required Available
Innovation & Design 4 0 9
Location & Linkages 0 0 10
Sustainable Sites 2 5 21
Water Efficiency 0 3 15
Energy & Atmosphere 1 0 38
Materials & Resources 3 2 14
Indoor Environmental Quality 7 6 20
Awareness & Education 1 0 3
Mandatory Measures and Points
AccountabilityForm
HomeSizeAdjustment
19 tons concrete
13,837 board ft. framing lumber13,118 sq. ft. sheathing
3,103 sq. ft. roofing3,061 sq. ft. insulation
19 windows
3 exterior doors1 patio door
2 garage doors 3,200 sq. ft. siding
2,269 sq. ft. flooring2,335 sq. ft. interior ceiling
6,050 sq. ft. interior wall finish3 bath sinks
3 toilets
2 bathtubs1 shower stall6 closet doors
15 kitchen cabinets5 other cabinets
226 linear ft. ducting1 fireplace
Integrated Project Planning
– Engage key members of project team• Pre-construction meeting
– Goals, timetables, responsibilities
ID 1.2 Integrated Project Team 1pt.
ID 1.3 Design Charrette 1pt.
ID 2.1 Detailed Durability Plan; (Pre-Construction) Mandatory
Durability Plan
ID 2.2 Third-party verification of Durability Plan 3 pts
CIR’s and ID’s
Credit Interpretation Request— an alternative way of achieving the same intent as an existing LEED credit. It is achieved by requesting permission to meet the “intent” of a credit using an approach that is different from the stated “requirements,” or simply a clarifying question not addressed in the rating guide.
Innovative Design (ID) — a way of earning one or more LEED points for technologies or strategies that are not included in the Rating System but offers substantial environmental benefits. It is achieved by requesting permission for a credit / measure that is not included in the current rating system or going above and beyond an existing credit.
What is LEED-ND?
A LEED rating system being developed through a partnership with
– Natural Resources Defense Council (Smart Growth)
– Congress for the New Urbanism
A rating system that combines elements of smart growth, urbanism, and green building
LL 1 LEED-ND Neighborhood 10 pts
Site
Stewardship
SS 1.1 Erosion Control (During Construction) Mandatory
SS 1.2 Minimize Disturbed Area of Site (if site is > ¼ acre) 1 pt
WE 3.1,3.2 High and Very High Efficiency Fixtures Up to 6 pts
Indoor Water Use
Break?
Design and build an ENERGY STAR labeled home.
EA 1.1 Meets ENERGY STAR for homes Mandatory
81
What is ENERGY STAR?
• Third party labeling system for homes that meet the EPA criteria.
• Home Energy Rating System (HERS) accredited professionals
• HERS Index: Reverse scale 100 – 0
100 = code minimum (worst legal)
0 = net zero energy
85 (or lower) = ENERGY STAR
Design and install insulation to minimize thermal losses.
WHAT IS THERMAL BYPASS?
7070o o FF
7070o o FF
3030o o FF
5050o o FF
Thermal bypass checklist.
Minimize air leakage into and out of conditioned spaces.
Use high performance windows.
Minimize leaks in heating and cooling distribution systems.
Use high performance HVAC equipment.
Size HVAC equipment properly.
Charge refrigerant properly.
Design and install energy-efficient water heating equipment.
Minimize lighting energy demand.
Minimize appliance energy demand.
Reduce demand for non-renewable energy sources by installing a renewable electric generation system.
Design and install energy-efficient water distribution system.
EA 7.1 Improved Hot Water Distribution System 2 pts
EA 7.2 Pipe Insulation 1 pt
97
•Map uses and locate DHW central to use•Manifold distribution system
•On-demand circulation system
Select refrigerants that cause less ozone depletion and global warming
…or don’t use
any refrigerants
for heating or
cooling…
EA 11 Minimize Ozone Depletion & Global Warming Contributions 2 pts
Material Efficient Framing
MR 1.2 Advanced Framing Techniques 3 pts
111
MR 2.1 Tropical Hardwoods, if used, Must be FSC Mandatory
EnvironmentallyPreferable
Products
MR 2.2 Select Environmentally Preferable Products from List 8 pts
114
MR 3.1 Document overall rate of diversion Mandatory
Waste Management
MR 3.2 Reduce Waste Sent to Landfill by 25% to 100% 3 pts
http://http://http://http://www.energystar.gov/index.cfm?cwww.energystar.gov/index.cfm?cwww.energystar.gov/index.cfm?cwww.energystar.gov/index.cfm?c====bldrs_lenders_raters.nh_iapbldrs_lenders_raters.nh_iapbldrs_lenders_raters.nh_iapbldrs_lenders_raters.nh_iap((((googlegooglegooglegoogle))))IEQ 1 Meets ENERGY STAR w/ Indoor Air Package (IAP) 11 pts
ENERGY STAR with Indoor Air Package
Education for the Homeowner
AE 1.1 Basic Owner’s Manual and Walkthrough Mandatory
AE 1.3 Public Awareness of LEED Home 1 pt
145
AE 1.2 Comprehensive Manual & Multiple Walkthroughs 1 pt
Thanks!
Mark Price
Conservation Services Group
508.836.9500 x13269
www.usgbc.org
www.energystar.gov
www.csgrp.com