LEED Versão 4

Novidades para o Setor

Matt Chmielewski, LEED AP Líder de Aplicação e Apoio a Projetistas

Trane Brasil

Agenda

Certificação LEED -

What is it?

How does it work?

Why do it?

LEED no Brasil

LEED Versão 4

Novidades por Categoria

LEED na Prática

O que é LEED?

Developed by the U.S. Green Building Council (USGBC),

LEED is a framework for identifying, implementing, and

measuring green building and neighborhood design,

construction, operations, and maintenance.

LEED seeks to optimize the use of natural

resources, promote regenerative and restorative

strategies, maximize the positive and minimize

the negative environmental and human health

consequences of the construction industry, and

provide high-quality indoor environments for

building occupants.

Leadership in Energy and

Environmental Design (LEED):

• Verifica que um prédio (ou bairro) e projetado,

construído, e operado conforme princípios de

sustentabilidade estabelecidos pelo GBC;

• Projeto tem de atender 8 pré-requisitos;

• Projeto ganha pontuação conforme atende os

objetivos de 9 categorias;

• Certificação a partir de 40 pontos.

Por que LEED?

Sustentabilidade

Atender as necessidades da

geração atual sem sacrificar as

necessidades de gerações

futuras.

LEED no Brasil

FONTE: http://www.gbcbrasil.org.br/?p=empreendimentos-leed (21/08/14)

Ranking Mundial LEED

Versão 4 Alterações

Foco Global

Unidades SI

Caminhos alternativos

de Compliance

Pré-requisitos e créditos

novos e mais rigorosos

Linguagem específica

para os setores

envolvidos

1 2

3

4

LEED versão 3 X versão 4

MR Materiais e Recursos

IEQ Qualidade do Ambiente Interna

IN Inovação e Processo do Projeto

RP Créditos Regionais

I Processo Integrativa

LT Local e Transporte

SS Espaços Sustentáveis

WE Uso Racional de Água

EA Energia e Atmosfera

LEED versão 3 X versão 4

Pode solicitar certificação na versão 3 até Junho 2015

www.usgbc.org/leed/v4

Sistemas de “Rating”

LEED® v4 BD+C Rating System 8 prerequisites to qualify

PLUS …

• Integrative Process 1 1

• Location and Transportation 8 16

• Sustainable sites 6 10

• Water efficiency 4 11

• Energy and atmosphere 7 33

• Materials and resources 5 13

• Indoor environmental quality 9 16

• Innovation and design process 2 6

• Regional 1 4

Sub- categorias

Pontos Disponíveis

110

100

pts

Bônus

novo

LEED v4

• Integrative Process 1 1

• Location and Transportation 16 –

• Sustainable sites 10 –

• Water efficiency 11 5

• Energy and atmosphere 33 33

• Materials and resources 13 1

• Indoor environmental quality 16 7

• Innovation and design process 6 3

• Regional 4 1

Participação de Climatização no

Certificação LEED Pontos

Disponíveis

110

Pontos de Climatização

51

Integrative Project

Planning and Design

• Criar “Owner’s project requirements

document”

• Estabelecer objetivo de nível de

Certificação LEED (Gold, Silver, etc.)

• Estabelecer e reunir os profissionais

de cada disciplina do projeto

• Design charrette (reunião de 4+

horas com todas as disciplinas).

Otimizar integração de estratégias

verdes.

novo

LEED v4

Local e Transporte Não há pré-requisitos nesta categoria

Pontos

• LEED for Neighborhood Development location 16

• Sensitive land protection 1

• High-priority site 1–2

• Surrounding density and diverse uses 1–5

• Access to quality transit 1–5

• Bicycle facilities 1

• Reduced parking footprint 1

• Green vehicles 1

Total 16

OR

novo

LEED v4

Espaços Sustentáveis

Redução de Poluição oriundo Construção Pré-requisito

Pontos

• Assessoria do Site 1

• Desenvolvimento do Site – Proteger ou

Restaurar Habitato 1–2

• Espaço Aberto 1

• Gerenciamento de Água de Chuva 1–3

• Efeito Ilha de calor 2

• Redução de Poluição de Iluminação 1

Total 10

Exemplo de “Check List”

• Recuperar condensado de sistema HVAC

• Rastrear consumo de água atraves de sistema de automação

• Otimizar torre de esfriamento

Uso Racional de Água

• Redução de uso externo de água Pré-requisito • Redução de uso interno de água Pré-requisito • Medição de consumo predial de água Pré-requisito

Points

• Redução de uso externo de água 1–2

• Redução de uso interno de água 1–6

• Consumo de Torre de Resfriamento 1–2

• Medição de consumo predial de água 1

Total 11

Papel de Climatização

Redução de uso interno de água Pré-requisito

• Reduzir consumo 20% relativo ao modelo baseline

• Requisitos para Torres de Resfriamento

– Não “once-through cooling” com água potável

– Medição de água de reposição obrigatório

– Obrigatório monitorar condutividade e transbordagem

– Eliminador de partícula (‘drift’) obrigatório

Relógio de água para o Prédio Pré-requisito

• Medidores permanentes de

água para prédios e o terreno

• Compartilhar dados de uso

por 5 anos com o GBC

• Medidores para pelo menos

dois subsistemas (ex. Água

doméstica, irrigação, etc.)

novo

LEED v4

Parameter Maximum

Concentration

Ca (as CaCO3) 1000 ppm

Total Alkalinity 1000 ppm

SiO2 100 ppm

Cl- 250 ppm

Conductivity 2000 µS/cm

Água de Reposição da Torre novo

LEED v4

Energia & Atmosfera

• Comisionamento e Verificação Pré-requisito • Desempenho mínimo de Energia Pré-requisito • Medição de consumo predial de energia Pré-requisito • Gestão Fundamental de Gases Refrigerantes Pré-requisito

Pontos

• Melhoria no comissionamento 2–6

• Otimização da performance energética 1–18

• Medição de consumo predial Avançada 1

• Demand response 1 – 2

• Geração local de energia renovável 1 – 3

• Melhoria na gestão de gases refrigerantes 1

• Energia Verde e “Carbon Offsets” 1 - 2

Total 33

Climatização é Fundamental no Crédito EA

novo

LEED v4

Minimum energy performance

• Cumprir com mínimos da ASHRAE 90.1-2010

(fatores U, eficiência de equipamento, etc.)

• Option 1: whole building energy simulation – Baseline building complies with ASHRAE Appendix G

– 5% better than 90.1-2010 Baseline for new construction,

• Option 2: prescriptive compliance path – ASHRAE 50% Advanced Energy Design Guide for all mechanical

• Option 3: prescriptive compliance path

– Advanced Buildings Core Performance Guide

&

pré-requisito

RESULTADO => % de redução de custo anual de energia => Proposed vs. 90.1

Baseline => LEED POINTS (EA Crédito 1)

Energy Cost Savings by Construction

Type

EAC2 Points Earned by Building

Type

New

Construction

Major

Renovation

Core and

Shell

All

others

Healthcare Schools

5% 3% 2% Prerequisite

6% 4% 3% 1 3 1

8% 6% 5% 2 4 2

…

20% 18% 17% 8 10 8

…

42% 40% 39% 16 18 16

46% 44% 43% 17 19 16

50% 48% 47% 18 20 16

Otimizar Performance Energética

• Option 1: whole building energy simulation – Baseline building complies with Appendix G Building PRM

– 6% better than 90.1-2010 for new construction,

• Option 2: prescriptive compliance path – 50% Advanced Energy Design Guides

– 5 possible points by following recommendations (each worth one point)

• Building envelope (opaque)

• Building envelop (glazing)

• Interior lighting

• Exterior lighting

• Plug loads

Até 18 pts

Até 5 pts

90.1 - 2010 Alterações para

Envoltoria

• Fenestration orientation

• Continuous air barrier

• Cool roofs (Zones 1-3 – a maioria do Brasil)

• Envelope/lighting interactions

• daylighting control

• modify the area thresholds for top and side daylighting

90.1-2010 Alterações de Iluminação

• Lower Lighting Power Density (LPD)

• Lighting controls

• Manual on or first level of lighting 50%

• One control step between 30% and

70% of design LPD

• Parking garage lighting control

• Control of 50% of receptacles

• Envelope/lighting interaction

• Alteration threshold (10%) at which replacement

lighting and controls must comply

90.1-2010 Significant Mechanical Changes

• Eficiências mínimas de Equipamento

• Economizador de ar obrigatório na maioria

das zonas climáticas

• Recuperação de energia do lado do ar

exigido em mais climas em níveis

reduzidos de % de Ar externa

90.1-2010 Alteração de Eficiência Mínima

90.1-2010 Alterações aos requisitos

de Controles – Lado de ar

• Existing control requirements (since 1999) – Fan pressure optimization (como função de vazão

de projeto)

– Demand control ventilation (DCV) in high density zones

• Alterações aos controls requirements – DCV in lower density zones

– Ventilation reset

– Supply air temperature reset

– VAV minimum airflow/reheat minimums

– Pump pressure optimization

Building-level energy metering Pré-requisito

• Building-level meters or submeters que permite um visão clara do consumo de cada forma de energia – Ex: Electricity, natural gas, chilled water,

steam, fuel oil, propane, etc.

• Share energy consumption and electric demand with USGBC for five years

LEED v4: EA (1 ponto)

Advanced energy metering • Install energy meter in subsystem(s) (ou seja

consumidores que representa 10% or more of

total building annual consumption)

– Ex: Chilled water system, condenser water

system, hot water system, air-handling system

novo

LEED v4

LEED v4: EA (2-6 points)

Enhanced commissioning

• Documented commissioning experience

– At least two projects with similar scope of work

– Early design phase through at least 10 months

of occupancy

• Employee of owner, independent consultant

or “disinterested subcontractor of the design

team”

LEED v4: EA (2-6 points)

Enhanced commissioning

• Option 1, Path 1: Enhanced Systems Commissioning (3 points)

– ASHRAE 0-2005, 1.1-2007

• Option 1, Path 2: Enhanced Monitoring-Based commissioning (4 points)

– Path 1 AND

– Monitoring-based procedures, measurement, tracking, evaluation, correction, training, repairs, and frequency

• Option 2: Envelope commissioning (2 points)

– Commissioning of the thermal envelope

– Related to energy, water, IEQ, and durability

Demand Response (“Smart Grid”)

• Case 1:

Participate in utility DR

program (2 points)

– Real-time fully automated

response

– 10% demand reduction

– Minimum 1 year contract

with multiple year intent

– Comprehensive plan to

meet DR contract

– Include DR in

commissioning

• Case 2:

No DR program available

(1 point)

– Install recording meters with

communications and ability

to accept DR signal

– 10% demand reduction

– Include DR in

commissioning

– Contact local utility

representatives to discuss

future DR programs

novo

LEED v4

Renewable energy production

• Use on-site renewable energy systems to offset

building energy cost (solar, aeolica, biogas, etc.)

• Creditos reduzidos de v3 para v4 – LEED V3: Up to 7 points

– LEED V4: Up to 3 points

• Solar gardens or community renewable energy

systems allowed

% Renewable

Energy

Points

(NC, Retail,

Schools,

Healthcare)

Points (CS)

1% 1 1

3% 2

5% 2 3

10% 3

Enhanced refrigerant management

• Reduced from 2 points (v3) to 1 point (v4)

– Credit for no refrigerant or refrigerants with

ODP = 0 and GWP < 50

– Calculation for other refrigerants required

(ODP, GWP, initial refrigerant charge, leakage

rate, equipment life; no changes)

Green power and carbon offsets

• 50% from renewable resources (1 point)

• 100% from renewable resources (2 points)

• At least a 5-year contract

• Resources must have come online since Jan. 1st,

2005

• Storage & collection Pré-requisito

• Construction and demolition Pré-requisito

waste management planning

Points

• Building life-cycle impact 2–5

reduction

• Environmental product 1–2

declaration

• Sourcing of raw materials 1–2

• Material ingredients 1–2

• Construction and demolition 1–2

waste management

Total 13

Materiais & Recursos

Papel de Climatização

novo

LEED v4

novo

LEED v4

LEED v4: MR new credit (1-2 points)

Environmental product declarations

Source: http://urbanfabrick.com/understanding-life-cycle-assessment-lca/

novo

LEED v4

Environmental product declarations

• Option 1:

EPD (1 point)

– Use ≥ 20 permanently-

installed products (at least 5

manufacturers)

– Product-specific self

declaration (valued at ¼

product)

– Industry-wide third-party EPD

(valued at ½ product)

– Product-specific third-party

EPD (valued at 1 product)

– USGBC-approved program

• Option 2:

Multi-attribute optimization

(1 point)

– At least 50% (based on cost)

of the permanently-installed

products must demonstrate

environmental impact

reduction (third-party

certified)

– Products sourced within 100

miles of site are valued at 2x

the cost

– Structure and enclosure

materials can contribute no

more than 30%

novo

LEED v4

o EarthWise™ CenTraVac™, o primeiro resfriador

do mundo a obter a Declaração Ambiental do

Produto, de acordo com a norma ISO 14025.

Extremamente rigorosa, a certificação considera

todas as fases do ciclo de vida do produto e

garante que desde sua fabricação ele tenha sido

comprometido com os mais altos padrões de

sustentabilidade e eficiência energética.

• Minimum IAQ pré-requisito performance

• Environmental tobacco pré-requisito smoke control

Points

• Enhanced IAQ strategies 1–2

• Low-emitting materials 1–3

• Construction IAQ 1 management plan

• IAQ assessment 1–2

• Thermal Comfort 1

• Interior lighting 1–2

• Daylight 1–3

• Quality views 1

• Acoustic performance 1

Total 16

Indoor Environmental Quality

Papel de Climatização

novo

LEED v4

Minimum IAQ performance pré-requisito

• ASHRAE 62.1-2010, Sections 4–7 (ASHRAE 170-2008 for healthcare)

• Mechanically ventilated spaces:

– Use Ventilation Rate Procedure

– Monitor OA intake flow (sistema VAV)

• Naturally ventilated spaces:

– Use Natural Vent. Procedure

– Monitor NV openings, exhaust airflow, or CO2 concentrations

• IAQ Procedure not allowed

novo

LEED v4

ASHRAE Standard 62.1-2010 section change

6.2.1 Added MERV 11 requirement for PM2.5 non-attainment areas,

more stringent requirements for ozone air cleaning

6.2.7.1 Prescriptive requirements for DCV and other reset strategies

6.4 Prescriptive requirements for natural ventilation (location and

size of openings, controls), requires “mixed-mode” systems in

most applications

6.1, 6.5 Clarified that exhaust airflow requirements are required

regardless of which procedure is being used

5.5.1 Simplified intake/exhaust separation requirements (by air class)

6.2 Clarified Ventilation Rate Procedure calculations

LEED v4: IEQ (1-2 points)

Enhanced IAQ strategies

• Option 1 (1 point), implement all:

– Entryway systems, and

– Local exhausts, and

– MERV 13 filtration of outdoor air

• Option 2 (1 point), choose:

– Prevent pollutants from outside, or

– Increased ventilation (↑30%), or

– CO2 monitoring (≥ 25p/1000ft2), or

– Monitor other contaminants

LEED v4: IEQ (1 point)

Construction IAQ management plan

• SMACNA control measures

• Protect materials from moisture

• MERV 8 filters if HVAC equipment is used during construction

LEED v4: IEQ (1-2 points)

IAQ assessment

• Option 1: Flush-out (1 point), or

• Option 2: Air testing (2 points)

(more contaminants to test for)

LEED v4: IEQ (1 point)

Thermal comfort • Design per ASHRAE 55-2010

• Requirements for permanent monitoring

and occupant survey have been removed

• Individual controls for at least 50% of

individual occupant spaces, controls for

all shared multi-occupant spaces

LEED v4: IEQ (1 point)

Acoustic performance NC, Hospitality, Warehouses (1 point)

• Maximum background sound levels per

ASHRAE Handbook

• Sound Transmission Class (STC)

requirements

• Reverberation time requirements (table)

• Reinforcement or masking systems

novo

LEED v4

LEED v4: IEQ

Acoustic performance

Schools (prerequisite)

• Background sound level ≤ 40 dBA

• ANSI S12.60-2010 reverberation time requirements

• Limit noise from exterior sources

Schools (1 point)

• Background sound level ≤ 35 dBA

• ANSI S12.60-2010 STC reqs

• Window STC rating ≥ 35

Healthcare (1-2 points)

• Meet 2010 FGI Guidelines for speech privacy, background sound, acoustical finishes, and site noise

novo

LEED v4

Points

• Innovation in design 1–5

• LEED® Accredited 1

Professional

Total 6

Innovation & Design Process

Points

• Regional Priority 1–4

Credit

Total 4

Regional Priority Credits

…That’s all folks!!

E o Custo Inicial de LEED?

Exemplo Resultado de Produtividade

de Investimento em Conforto

• Custo de Produtividade do Funcionário

– R$100.000 salário (custo p empresa)

– 10 m²/funcionário

– R$10.000/m² por funcionário por ano

– 2% a 20% produtividade perda/ganho:

R$200 á R$2.000/m², por ano

Compare com…

• Melhoria no sistema HVAC (aumento de conforto térmico + qualidade acústica + qualidade do ar)

– Custo Base de Instalação + equipamento para sistema básico = R$300/m2

50% comfort system upgrade para sistema bom : R$150/m², uma vez

Cost of Electricity 94.53%

First Cost of Chiller 5.18%

Cost of Initial Refrigerant 0.25%

Cost of Lifetime Refrigerant Supply

Custo do Ciclo de Vida de um Chiller Centrífugo

0.04%

Custo Total Id

eali

zação

Co

ncep

. e

Pro

jeto

< 0,2% 0,8%

50 anos (vida útil de

projeto)

14 %

80 %

5 %

Co

nstr

ução

Us

o e

op

era

çã

o

Ad

ap

tação

para

reu

so

Edifício comercial em 50 anos de uso

$

• 4500 visitantes

• 1042 congressistas

• 48 jornalistas

• 141 palestrantes

• 63 expositores

• 32 países.

• Abertura por Fernando Henrique

Cardoso

Obrigado!!

Contact:

Matt Chmielewski Líder de Aplicação e Suporte a Projetistas

Trane

Office: +55 19 3721-7919

Celular: +55 19 9 9499-4987

Email: matt.chmielewski@trane.com