LEED for Homes - Cabrillo Collegemsoik/12/leed-for-homes-111001131108-phpapp02… · LEED Rating...

Copyright © 2007 Design AVEnues

LEED for Homes Tips for Successful Projects

Ann Edminster M.Arch., LEED AP

Design AVEnues

[email protected] | 115 Angelita Avenue | Pacifica, CA 94044 | 650-355-9150

© Design AVEnues 2009. Reproduction, distribution, display and use of the presentation without written permission of the speaker is prohibited.


The Main Points

Understand the program

Understand the process

Use integrative design

Model early & often

Get the order right

Set expectations

Manage the process


UNDERSTAND THE PROGRAM

PLATINUM

GOLD

SILVER

CERTIFIED

± 90

± 75

± 60

± 45

1. Comply with all MANDATORY

MEASURES, a.k.a. prerequisites

2. Meet or exceed category

POINT “FLOORS”

3. Achieve minimum overall

SCORE


The Threshold Adjuster

… compensates for the overarching effect of home size on resource use by adjusting the award level point thresholds based on floor area.

Minimum Score to be Certified:

Floor Area 3 Bedrooms 4 Bedrooms

2,000 47 38

3,000 57 49

4,000 65 56


Home Size

478 SF/person

average floor area 1,500 SF

3.14 people per household

In 1950

In 1970

1.6 x 1950

In 2000

2.8 x 1950

297 SF/person



840 SF/person




The Rating Categories

ID LL SS WE EA MR EQ AE

INNOVATION &

DESIGN PROCESS

LOCATION &

LINKAGES

INDOOR ENVIRONMENTAL

QUALITY

WATER

EFFICIENCY

MATERIALS &

RESOURCES

ENERGY &

ATMOSPHERE

AWARENESS &

EDUCATION

SUSTAINABLE

SITES


ID LL SS WE EA MR EQ AE

POINTS: 21

FLOOR: 6

PREREQS: 7

POINTS: 15

FLOOR: 3

PREREQS: 0

POINTS: 16

FLOOR: 2

PREREQS: 3

POINTS: 22

FLOOR: 5

PREREQS: 2

POINTS: 11

FLOOR: 0

PREREQS: 3

Points, Floors, Prerequisites

POINTS: 38

FLOOR: 0

PREREQS: 8

POINTS: 10

FLOOR: 0

PREREQS: 0

POINTS: 3

FLOOR: 0

PREREQS: 1


The Delivery System

USGBC

PROVIDER

PROJECT TEAM

GREEN

RATER


Roles & Responsibilities

PROVIDER

Oversight Certification Quality assurance Liaison to USGBC



PROVIDER


GREEN RATER

Preliminary review

LEED on-site verification

Navigational support

Certification administration

Consulting (sometimes)



PROVIDER


GREEN RATER

Preliminary review

LEED on-site verification

Navigational support

Certification administration

Consulting (sometimes)

HERS RATER

HERS on-site verification

Performance testing

Modeling (sometimes)



PROJECT TEAM

COMMIT (Contract Documents)

Plan and follow through

Document your decisions

Prepare submittals



PROJECT TEAM

Submittals

Durability forms

CIR/ID proposals

Accountability Forms

EPP information

O&M manual

Additional documentation


UNDERSTAND THE PROCESS

Pre-construction

During Construction

Completion


The LEED for Homes Process

CONFER

WITH GREEN

RATER &

REVIEW PLANS

BUILD

GREEN

HOME(S)

PRE-

DRYWALL

VERIFICATION

COMPLETE

HOME(S) &

LANDSCAPE

SELECT

PROVIDER REGISTER

ONLINE

SELECT

GREEN RATER

SUBMIT

INITIAL

PAPERWORK

DOCUMENTATION

& FINAL

VERIFICATION

PRE-

DRYWALL

VERIFICATION

COMPLETE

HOME(S) &

LANDSCAPE


Review design with Provider

& Green Rater

Identify additional work needed

Estimate score and rating level

Promote per USGBC guidelines (optional)

CONFER

WITH GREEN

RATER &

REVIEW PLANS

PRE-CONSTRUCTION


Durability Risk Evaluation

Durability Checklist

HERS Report (energy modeling)

Waste Diversion Plan

SUBMIT

INITIAL

PAPERWORK

PRE-CONSTRUCTION


Thermal bypass inspection

Durability / envelope measures

(optional)

Site protections

PRE-

DRYWALL

VERIFICATION

PRE-

DRYWALL

VERIFICATION

DURING

CONSTRUCTION


Instructions

General Information

Builder Name:

Subdivision Name:

House Address:

Provider's Name:

Rater's Name:

Sampling Protocol Used: (Y / N)

LEED Score: / 100 Points

LEED Rating Achieved: (Certified, Silver, Gold, Platinum)

HERS Score Achieved: / 100 Points

Location & Linkages Water Efficiency

@ 2 Site Selection @ 1.1 Water Reuse; Rainwater Harvesting

@ 5.1 Average Housing Density >/= 7 Units / Acre @ 1.2 Water Reuse; Grey Water Reuse

@ 5.2 Average Housing Density >/= 10 Units / Acre @ 2.2 Irrigation System; High Efficiency Measures

@ 5.3 Average Housing Density >/= 20 Units / Acre Materials and Resources

Sustainable Sites @ 1 Smaller Home

@ 2.1 Basic Landscaping Design @ 4.1 Durability Plan; (Pre-Construction)

@ 2.4 Minimize Landscape Water Demand Energy and Atmosphere

Indoor Environmental Quality @ 2.3 Insulation; Above Code

@ 3 Humidity Control System @ 6.1 HVAC Meets ENERGY STAR for HVAC

@ 4.1 Outside Air Ventilation; Meets ASHRAE/Std 62.2 @ 10 Renewable Electric Generation System

@ 5.1 Local Exhaust; Meets ASHRAE Std 62.2 @ 11 Residential Refrigerant Management

@ 6.1 Supply Air Distribution; ACCA Manual D Innovation and Design Process

@ 9.1 Radon Protection; Install System, EPA Zone 1 @ 1.1 Provide Description and Justification

@ 9.2 Radon Protection; Install System, Not EPA Zone 1 @ 1.2 Provide Description and Justification

Homeowner Awareness @ 1.3 Provide Description and Justification

@ 1.1 Basic Owner's Manual & Walkthrough @ 1.4 Provide Description and Justification

@ 1.2 Comprehensive Manual & Multiple Walkthroughs

Official Certification (to be Completed After Final LEED for Homes Rating)

Responsible Party Date

Printed Name

Project Role / Title

Organization / Company

Signature

All declarations and affirmations made in this accountability form are made to USGBC solely for the purpose of assisting USGBC in determining

whether LEED Certification is merited. No such declaration or affirmation can be construed as a warranty or guarantee of the performance of the

building.

By affixing my signature below, the undersigned does hereby declare and affirm to the USGBC that the LEED for Homes requirements, as

specified in the LEED for Homes Rating System, have been met for the indicated credits and will, if audited, provide the necessary

supporting documents (drawings, calculations, etc.).

Overall Performance Data

This form is to be completed by the person / organization responsible for the design and/or implementation of one or more of the LEED for

Homes credits below. A separate form shall be completed by each design professional responsible for one or more credits.

Areas of Accountability

Accountability Form

(Version 1.7, August 12, 2005)

Step 1. Review the requirements for the credits in the LEED for Home Rating system for which you are responsible.

Step 5. Complete the Official Certification section at the bottom of the form.

Step 6. Maintain a project documentation file to assist in the event of an audit of your credit(s) or of this project by the USGBC.

Step 4. In the Areas of Accountability section, check boxes to indicate the LEED for Homes credits for which you have the

Step 2. Complete the General Information section of this form.

Step 3. Skip the Overall Performance Data section of the form (to be completed by Provider/Rater).

primary design/implementation responsibility.

Accountability forms

O&M manual

Materials list

Calculations, etc.

DOCUMENTATION

COMPLETION


On-site verification

Performance testing

Paperwork verification

Scoring & rating

Certification

MANDATORY TESTS

Envelope air leakage

Duct leakage

Refrigerant charge

OPTIONAL TESTS

Outdoor air flow

Exhaust air flow

Supply air distribution

Irrigation system

& FINAL

VERIFICATION

COMPLETION


USE INTEGRATIVE DESIGN

Courtesy of Duncan Prahl, IBACOS


USE INTEGRATIVE DESIGN “Integrated design can reduce

construction cost while providing

significant sustainable design

benefits. On the CSU Monterey

Bay Library, by comparing a

number of integrated structural,

mechanical, and architectural

schemes, we found that tradeoffs

from one discipline more than

offset added costs in another,

while achieving energy savings of

almost 40%.”

~ Scott Shell, EHDD Architects

Courtesy of Duncan Prahl, IBACOS


“Any phenomenon is controlled both by the

working of its smaller parts and by its role

in the larger system of which it is a part.”

- H.T. Odum (Environment, Power & Society, 1971)


The integrative design process

Recognizes that each aspect of building

design influences others

• Envelope affects HVAC sizing

• Windows affect lighting loads

• Lighting affects cooling loads

• Waste heat from one process

can be pre-heating for another

© Eraxion | Dreamstime.com


Keys to integrative design

Commit to the integrative design process

Hold a charrette

Have regular meetings

Establish communication protocols

Identify scope of responsibilities and interactions for all parties


Build your team

Assess your team’s capabilities

Identify any voids

Fill the voids

Energy savvy?

© Dandanos | Dreamstime.com


Who should be involved?

CATEGORY TYPICAL KEY CONTRIBUTORS

ID architect, builder

LL developer

SS civil, landscape, builder

WE civil, landscape, mechanical

EA architect, mechanical, T24, PV

EQ mechanical, T24, builder, structural

MR structural, developer, architect, interiors

AE builder, developer, architect



Owner/developer

Architect

General contractor

MEP consultant(s)

Energy analyst

Landscape designer

Interior designer

Others …

© Pressmaster | Dreamstime.com



Owner/developer

Architect

General contractor

MEP consultant(s)

Energy analyst

Landscape designer

Interior designer

Others …

One and the same?

© Pressmaster | Dreamstime.com


The integrative design process

Develop a design concept

Test alternatives using parametric analysis –

evaluate effect of one variable at a time on:

• energy performance

• constructability & cost

• other aspects of design

Test different combinations © Antonprado | Dreamstime.com


MODEL EARLY & OFTEN

Energy modeling: it’s not just about compliance – it’s a design tool!


MODEL EARLY & OFTEN


© Kellyoptra | Dreamstime.com


MODEL EARLY & OFTEN

NOT


© Kellyoptra | Dreamstime.com © Brandonparry | Dreamstime.com


Your energy consultant

Choosing a good one

• Experience matters (relevant experience)

• Mindset matters (maybe even more!)

Collaborating

• A member of the design team

• Your mechanical engineer, possibly?

• Needs to understand all the design opportunities


When and why should you do energy

modeling?

Before the charrette

During the charrette

To test design options

To qualify for tax credits & other incentives

To comply with green building programs

To capture the performance as accurately as

possible!

EARLY &

OFTEN!


GET THE ORDER RIGHT The Basics

• Siting

• Massing

• Orientation © Gabigarcia |

Dreamstime.com


GET THE ORDER RIGHT The Basics

• Siting

• Massing

• Orientation • Sun

• Wind

• Water

• Neighbors

• Trees

© Gabigarcia |

Dreamstime.com

© Serg_velusceac | Dreamstime.com


Minimize Occupant-driven Loads

• Can you control the stuff?




• Design can influence energy-use behavior

• Cross-ventilation, etc.

Tassafaronga, David Baker + Partners




• Design can influence energy-use behavior

• Cross-ventilation, etc.

• Monitoring &

feedback

Tassafaronga, David Baker + Partners

Courtesy Lucid Design Group


Minimize Enclosure Loads

It’s all about the

envelope!

Mike Keesee, SMUD, Project Manager,

The House of the Future


Minimize Enclosure Loads • Window orientation & size

• Window shading

• Window R-value (not U!)

• Window SHGC


envelope!





• Window shading


• Window SHGC

• Structure (thermal bridging)


envelope!





• Window shading


• Window SHGC


• Air leakage


envelope!





• Window shading


• Window SHGC


• Air leakage

• Insulation quantity

• Insulation quality


envelope!




Minimize Equipment Loads

• Heating efficiency & sizing

• Cooling efficiency & sizing

• Duct leakage & sizing

• Water heater efficiency

• Hot water distribution

• Lighting

• Appliances © Caraman | Dreamstime.com


Integrate the Other Issues

• Indoor environmental quality




• Water efficiency • Plumbing

• Plants

• Irrigation





• Plants

• Irrigation

• Materials





• Plants

• Irrigation

• Materials

• Site and stormwater protections





• Plants

• Irrigation

• Materials

• Site and stormwater protections

• Renewable energy


SET EXPECTATIONS

LEED for Homes is an above-code

program

It will require change from all parties

Anticipate needs for education

Document all agreements


Focus on what’s different

Energy Star / Thermal

Bypass Checklist



Energy Star / Thermal

Bypass Checklist

Durability planning



Energy Star / Thermal Bypass Checklist

Durability planning

Waste planning



Energy Star / Thermal Bypass Checklist

Durability planning

Waste planning

Operations &

maintenance

manual


Offer education & resources

HERS Rater shadowing

Diagnostic pre-testing

Trades training

Resource listings

Waste diversion opportunities & methods

Continuing education = competitive advantage

Learning curve =

continuing education

investment, not a

cost of the project.


Understand cost impacts

1. New practices

You’re no longer creating the same

product, so the cost will probably change;

how much depends on current practices.


Hyundai? … or Honda?

More fuel-efficient

More durable

Better-designed

More comfortable

Superficially similar, but …

Cost difference? Substantial.


Honda? … or Honda with sunroof?

Same fuel efficiency

Same durability

Same design quality

Slight increase in comfort

Pretty much the same –

Cost difference? Minor.



1. New practices

• New baseline, new product, new price?

2. Learning curve

• One-time investment benefits all future projects



1. New practices

• New baseline, new product, new price?

2. Learning curve

• One-time investment benefits all future projects

3. Program administration

• Verification + Quality Management = VALUE ADDED


MANAGE THE PROCESS

Assign responsibility for every credit

Last Updated: May 31, 2009

Credit Description Notes Party Responsible

for Info in CDs /

Other Doc'n

Where in Documents

Credit is Addressed

Early Final

ID 1.1 Preliminary Rating (P)

ID 1.2 Integrated Project Team NO List of team members and

meeting datesID 2.1 Durability Planning (P) Mandatory requirements: risk evaluation, checklist, response to checklist. Client

must develop durability checklist to point us to where in the drawings the durability

issues were adressed. There can be some field verification, but all medium + high

risk areas must include responses in drawings.

Architect Risk Eval Form and Durability

Checklist + durability measures

included in pjt docs

ID 2.2 Durability Management reviewed Table 1-pg. 22. Washer over living space. Conventional clothes dryer.

May use DensShield fiberglass faced board. Completed durability checklist to be

used in field for contractor verification prior to LEED rater verification.

Architect Complete Durability Checklist

(check off items as completed)

ID 3 Innovative or Regional Design Off-site improvements good candidate for ID proposal; Andy G to provide

community letter as basis for application. They also salvaged and donated

landscaping / retaining walls for use by a school. The site was a nursery before.

Give it a maybe. AE to research fee to submit proposals, and send them the CIR/ID

form.

Owner CIR/ID Request Form and

supporting documents

Project X LEED for Homes Notes

Project Team Documentation (LEED Only)

Key: boldface item(s)= formal submittal to RepDOTTED CELL = PROJECT IS NOT PURSUING

CREDIT


Manage the process

Assign someone to shepherd

the responsible parties

Check in with key parties

monthly

Prompt for questions,

documentation

© Koljambus | Dreamstime.com


Manage the process

Provide research and tracking tools (MR2)

Project: Project X shaded = n/a 2 Additional ? Pts

Total by type: 7.5 1.5 0.5 8 Grand Total

Assembly Component EPP Specifications EPP

Pts/No/?

Emissions

Specifications

Lo-VOC

Pts/No/?

Local

Pts/No/?

Respon-

sible

Party

Project Specifications/

Notes

Location in

drawings or specs

Documentation

(e.g., URL, FSC line-item

inv, mfr ltr, cut sheet)

INTERIOR:Floor Flooring - 45% of

total floor area

Linoleum, cork, bamboo,

FSC certified or reclaimed

wood, sealed concrete,

recycled-content flooring

0.5 All carpet and pad

complies with carpet &

Rug Inst Green Label

Plus Pgrm; addtl 1/2 pt

for using SCS FloorScore

certified pdt.

No HKS,

BAMO

FSC Certified; 100%

Reclaimed wood used on

90% of total floor area

Spec section 09648;

IA2.11P; IA2.12P

IA2.13P; Interior Finish

Code Key: WD-002

Floor Flooring - 90% of

total floor area

See Above--addtl 0.5 point. 0.5 automatic 1/2 pt if all

hard surface flooring

0.5 No HKS,

BAMO

FSC Certified; 100%

Reclaimed wood used on

90% of total floor area

Spec section 09648;

IA2.11P; IA2.12P

IA2.13P; Interior Finish

Code Key: WD-002

Interior Walls

and Ceilings

Gypsum board

(wallboard)Recycled-content

1 0.5 No HKS 95% Recycled Content Spec section 09250, 2.01

& 2.02

Interior walls +

ceilings +

millwork

Paints & coatings Recycled paint (must meet

GreenSeal Std GS-43,

<250 g/L VOC)

No See Table 25, p.81 in

LEED for Homes Rating

System.; additional 1/2

pt if paint is Zero-VOC2

0.5 BAMO Zero VOC paint is to be

used, zero VOC stain at

Library

VOC content specified in

section 09900 for paints

and section 06402 for

walls; IA5.09

Interior Finish Code Key:

WD-006

Use "PAINTS & COAT." tab

to track all paints &

coatings

Other Adhesives &

sealants

See Table 26, p.82 in

LEED for Homes Rating

System.

? HKS,

BAMO

?? ??

Other Cabinets Recycled content, FSC

certified, reclaimed, or

renewable3; AND

composite materials must

contain no urea-

formaldehyde resin

0.5 No BAMO 100% Reclaimed wood to

be used on all cabinets;

Cabinet core composed of

combination of reclaimed

wood, FSC certified wood

composite and no urea

formaldehyde resin

VOC content specified in

section 06410; All Interior

Elevations IA-5.01

through IA-5.32; Interior

Finish Code Key: WD-

004, WD-005, WD-008,

WD-009

Use "ADH. & SEAL." tab to

track all adhesives &

sealants

LEED MR 2.2: Environmentally Preferable Products


Manage the process

Provide research and tracking tools (MR3)

MR 3 - Construction Waste Management Planning and Reduction: Sample Calculation

Project Name:

Home Size (sf): 2900 Units used for Report*: cu. yds.

Date Tag # Load Description Taken To Landfill Incinerator

11/5/2008 1232 Misc construction waste ABC Waste Mgnt 10 N/A

11/2/2008 234324 Misc construction waste ABC Waste Mgnt 2 N/A

11/6/2008 5345 Steel Recycled Steel, Inc. 15.00 Recycled

11/9/2008 72356 Scrap wood ABC Waste Mgnt 1.40 N/A

11/12/2008 456456 Concrete Dave's Concrete 2.50 Recycled: crushed and

used as aggregate

17.50

* Use volume (cu. yds.) or weight (tons) consistently throughout form.

Percent Waste 43.4%

Waste Rate 4.6 cu. yds. /1000 sf

Percent Diverted 56.6%

Diversion Type

Total waste 13.40

Prepared By:

Surplus Material Removed*

Total surplus material 30.90

Waste Diverted

Material


Manage the process

Provide research and tracking tools (WE3)

WE3-COMPLIANT FIXTURESShowerheads:

High Efficiency:

Am Conservation AM Conservation AM Conservation ETL

Spoiler P Spoiler P Handheld Atomizing Oxygenics Low-Flow

Very High Efficiency:

Bricor Delta EcoTech Water Inc

Elite Series Water Efficient Showerheads Laminar flow Pressured…


Manage the process

Ensure every

LEED measure

being pursued is in the construction

documents!


Keys to success

Commitment

Capacity-building

Planning & organization

Selling the benefits

Ongoing

communication


Q & A

Thank you! [email protected]

LEED for Homes - Cabrillo Collegemsoik/12/leed-for-homes-111001131108-phpapp02… · LEED Rating...

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