Presentation on theme: "GREEN Its What We Do. Green Single Family Housing Rehabilitation Presented by: Chuck Robbins, Director Clackamas Countys Community Development Division."— Presentation transcript:
GREEN Its What We Do. Green Single Family Housing Rehabilitation Presented by: Chuck Robbins, Director Clackamas Countys Community Development Division
GREEN Three Fundamental Objectives What is Green building? Think of green building as the convergence of three fundamental objectives: 1.Increase energy efficiency 2.Conserve natural resources 3.Improve indoor air quality
GREEN Conserve Natural Resources Conserve Natural Resources Engineered lumber products such as wood fiber laminates and oriented strand board, utilize fast growing farm trees as an alternative to old-growth forests. Recycled-content decking, insulation, reclaimed lumber and other products divert waste from landfills, while providing quality and durability that often exceed conventional materials.
GREEN Improve Indoor Air Quality Improve Indoor Air Quality – why? EPA reports that the air in new homes can be ten times more polluted than outdoor air! New England Journal of Medicine says; 40% of children will develop respiratory disease, in part, due to the chemicals in their homes!
GREEN Fourth Objective Single Family Housing Rehabilitation Requires a fourth objective:
GREEN Do No Harm Objective #4 – Dont Just Treat the Symptoms Green Rehabilitation requires that we understand how the house operates. To do this you need to perform technical diagnostics in addition to a regular property inspection. The scope of work is developed from: What conditions are present What products exist in the home How the house functions as a system
Its all about air movement Air leaking into the house Air leaking out of the house
Introduce Green One Step at a Time Take it One Step at a Time Start with the easiest… Offer green products as an alternative
Step #1 Offer green products Increase Energy Efficiency Higher Quality, Environmentally Sound Products More Durable/Lower Maintenance Products Healthier Products & Practices Products & Practices that Provide: 1.Greater Comfort 2.Lower Utility Bills
Step #2 Identify Challenges Challenge #1 Understand that Green is approached differently in new construction than in rehabilitation Challenges of Green in SF Rehabilitation What are the challenges of incorporating cost effective green improvements into an existing single family rehab program?
Typical Progression for New Construction LEED Silver Home Certification Choose Parcel/Lot Planning & Design Construction Green Housing Unit Begins with the identification of the intended certification goal… I want a LEED Silver home Project progresses through design and construction phases until certification is awarded… completion is signified by commissioning and occupancy Certification Awarded
Typical Progression for Rehab Projects Begins with an occupied, existing home Inspection & Testing Identify Needs & Opportunities Scope and Specifications Construction Inspection & Verification Testing Safe, Healthy, & Efficient Home Initial Inspection & Diagnostic Testing - Energy Audit Determine scope, write specifications, & complete work What have we done??? You can only guess unless you verify results – Energy Audit (The Bottom Line)
GREEN Challenges Challenge #2 – There are no existing standards for Rehabilitation Most existing standards are written for NEW construction or multifamily development = Green Home Certifications
GREEN Challenges Challenge #3 – Lack of green knowledge Education needed for homeowners & contractors because both lack knowledge of: Green building concepts Energy saving techniques Proper installation Proper maintenance Why we are incorporating green building
GREEN Challenges Challenge #4 – Setting Your Standards Research and determine the level of green you wish to attain in your program energy efficiency energy saving products rebates and tax incentives energy audits
Energy Audit Pre Audit: Analyze utility billing history Interview occupants Pressure testing - Blower door test Duct pressure testing Furnace efficiency measurement Infrared detection of air leakage and insulation deficiencies Physical Inspection Mid-Project Cover Inspection to verify: Duct Fastening/Connections Duct sealing/Mastic application Baffling for insulation Post Audit: Pressure testing of conditioned spaces - Blower door test Duct pressure testing Infrared detection of air leakage and insulation deficiencies Physical Inspection
GREEN Challenges This home needs $ This family needs Challenge # 5 - Needs vs Budget
GREEN Challenges Challenge #6 – Local Resources Which green products are available locally? Which techniques can be used in your region? Which products are designed to be used in your region? Where can products be taken to be recycled?
GREEN Solutions Step 3 Add Tools to solve the challenges
GREEN Solutions Solution #1 – Adopt a set of green standards We adopted portions of: Enterprise Green Communities Criteria 2008 The Criteria sets out environmentally responsive building practices and provides a cost-effective framework for green building strategies. Provides standards for both substantial & moderate rehab 2011 Enterprise Green Communities Criteria – now available
GREEN Standards Examples of Enterprise Green Criteria: Efficient Energy Use: Moderate & Substantial Rehab Implement measures that will improve building energy performance by 15% from pre-renovation figures. Water-Conserving Appliances & Fixtures: Moderate Rehab Install water-conserving products when replacing fixtures : toilets – 1.3 GPF; showerheads – 2.0 GPM; kitchen faucets – 2.0 GPM; bathroom faucets – 2.0 GPM. Low / No Volatile Organic Compounds (VOC) Paints & Primers Specify that all interior paints and primers must comply with current Green Seal standards for low-VOC limits.
GREEN Specifications Solution #2 – Develop green specifications We took & combined requirements from these sources: Enterprise Sample Single Family Green specifications CCWX Oregon state weatherization specs ICC international codes State building codes State energy requirements
GREEN Specifications Example of regular rehab specification: REPLACE COUNTER TOP, PLASTIC LAMINATE Remove existing damaged counter top/backsplash and dispose of off site. Furnish and install new counter top and backsplash. Materials to consist of high-pressure laminated plastic counter top 1/16" Formica or equal, metal cove and cap trim, or equal, securely bonded to 3/4" particle board with self-edging and backsplash. Style and color selection by owner. Counter top shall be scribed to existing walls and secured front and rear to cabinets. Installer shall use sealant caulking between adjacent walls and counter top or backsplash.
GREEN Specifications Example of Enterprise Sample SF Green specification: REPLACE COUNTER TOP, PLASTIC LAMINATE [GREEN SPEC] Dispose of existing counter top. Field measure for sizing. Seal all bare wood and wood composite surfaces including the underside of the countertop with a low-VOC sealant. Screw to base cabinet a square edged plastic laminate counter top. Provide end-caps and cutout for sink. Caulk countertop to adjoining walls with low-VOC caulking to match wall color. Owner's choice of in-stock color and texture.
GREEN Solutions Solution #3 – Identify your local partners Our partners: A. Local Rehab Program B. Weatherization C. Office of Sustainability
GREEN Solutions Solution #4 - Redesign Single Family Rehab Program Holistic Approach - Adopt a holistic, comprehensive approach to rehab by incorporating green building, sustainability and energy efficiency as a combination of: Increasing energy efficiency Conserving natural resources Improving indoor air quality Determining existing conditions
GREEN Solutions Change requirements to achieve cost effective green rehabilitation: Require green rehab as part of rehab Require energy audit on full rehab project Require education for contractors & homeowners
GREEN Solutions Solution #5 – Look toward tomorrows trends for todays guidance Many federal and state departments are taking a new comprehensive systems approach by focusing on Safe & Healthy Homes Healthy Home &
GREEN Current & Future Trends Safe & Healthy Housing DOE - Weatherization Plus Health Initiative CDC - Healthy Homes Initiative USDA - Healthy Homes Initiative HUD - Healthy Homes Program HUD - Healthy Home Rating System (HHRS)
GREEN Its What We Do. HUD – SHHIP Safe & Healthy Homes Investment Partnerships HUD competitive rounds of funding + points SHHIP promotes local partnership alignment of health, energy and housing programs and will reward these partnerships with local SHHIP designation and bonus points on upcoming NOFA's.
GREEN Its What We Do. CLACKAMAS COUNTY CONTACTS: Housing Rehabilitation – (503) 655-8591 Kathy Rock – email@example.com@co.clackamas.or.us Rob Morris – firstname.lastname@example.org@co.clackamas.or.us Weatherization (503) 650-3339 Jacque Meier – email@example.com@co.clackamas.or.us Office of Sustainability – (503) 742-4455 Susan Ziolko – firstname.lastname@example.org@co.clackams.or.us