Barriers and incentives related to the installation of home fire sprinklers
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Kathleen Almand- Executive Director. Barriers and Incentives Related to the Installation of Home Fire Sprinklers. Introduction. Fire sprinklers reduce fire death risk All model safety and building codes require fire sprinklers in all new homes Community based barriers

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Barriers and Incentives Related to the Installation of Home Fire Sprinklers

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Barriers and incentives related to the installation of home fire sprinklers

Kathleen Almand- Executive Director

Barriers and Incentives Related to the Installation of Home Fire Sprinklers


Introduction

Introduction

  • Fire sprinklers reduce fire death risk

  • All model safety and building codes require fire sprinklers in all new homes

  • Community based barriers

  • Additional benefits of sprinklers - water conservation

  • Incentives to increase use of fire sprinkler systems


Residential fire sprinklers and water conservation

Residential Fire Sprinklers and Water Conservation

Water usage and water meter performance during residential sprinkler system actuation in residences and to provide guidance information on this topic in a format suitable for water utilities and local jurisdictions


Study tasks water usage

Study Tasks – Water Usage

  • Study of water consumption during fire events and resulting impacts on water infrastructure demand:

    • Estimation of water used per home fire by responding fire services

    • Calculations of the expected water discharged by fire sprinklers per home fire

    • Estimation of the reduced water infrastructure demand when fire sprinklers are present in all homes within a community


Water usage results

Water Usage Results

  • Water used by fire service:

    - Average of 3,524 gallons per fire

    - An approximate 10-times increase when

    • Fire extended beyond the room of origin

    • Increase of fire involvement from visible flame and smoke to fully-involved fire


Water usage results1

Water Usage Results

Related studies and results:

  • Scottsdale, AZ –Automatic Sprinklers: A 15-Year Study

    -Average 2,935 gallons per fire used by fire services

    -Sprinkler discharged up to 341 gallons per fire

    Available here: http://www.homefiresprinkler.org/FS/FSMunicipalRports.html

  • FM Global – Environmental Impact of Automatic Fire Sprinklers

    -Reduction in water usage by fire sprinkler system could be as much as 91% compared to manual suppression

    -Approximately 10 times increase - similar to this study

    Available here:

    http://www.fmglobal.com/page.aspx?id=04010300


Study tasks water usage1

Study Tasks – Water Usage

  • Calculations of the expected water discharged by fire sprinklers per home fire:

    - hydraulic calculations on fire sprinkler designs for typical one- and two-family homes

    - calculations assumed a one- or two-sprinkler operation of highest water flow and greatest system pressure demand


Water usage results2

Water Usage Results

  • Calculations based on most probable scenario based on actual sprinkler design plans:

    - single sprinkler operation

    - average system discharge 28 gpm

    - exceeds required minimum flow of 18 gpm

    - system discharge up to 280 gallons per fire


Water usage results3

Water Usage Results

  • Estimation of the reduced water infrastructure demand when fire sprinklers are present in all homes within a community:

    - projected infrastructure demand is reduced at least 47%


Meter performance study tasks

Meter Performance-Study Tasks

  • Evaluation of the performance of water meters when used to supply residential fire sprinkler systems

  • Series of experiments on commercial residential water meters under a range of flow conditions to investigate:

    - pressure loss profiles

    - metering accuracy

    - functional integrity


Water meter performance

Water Meter Performance

  • Failure of water meter components

    - Observation of water meter

    - Failure based on reduction in flow rate and/or pressure

    - 20 minute test per flow condition


Water meter performance1

Water Meter Performance


Meter performance results

Meter Performance Results

  • No water meters failed resulting in flow obstruction during any tests

  • Post test visual inspections indicated no signs of physical water damage to any meter

  • All tested residential water meters are capable of handling the minimum fire sprinkler flows required by NFPA 13D

  • All tested meters are capable of handling the expected 28 pgm for single sprinkler operation without failure and with metering accuracy


Incentives for the use of residential fire sprinkler systems in u s communities

Incentives for the Use of Residential Fire Sprinkler Systems in U.S. Communities

Whystudy incentives?

  • Toidentifytheirvalue

  • Tounderstandtheimpact of thesevalues

  • Toincreasethe use of firesprinklers


Incentives for the use of residential fire sprinkler systems in u s communities1

Incentives for the Use of Residential Fire Sprinkler Systems in U.S. Communities

Importantfactors:

  • Time specific

  • Single issue

  • Futureconsiderations


Incentives for the use of residential fire sprinkler systems in u s communities2

Incentives for the Use of Residential Fire Sprinkler Systems in U.S. Communities

Researchobjectives:

  • Identify incentives/types

  • Characterize incentives

  • Estimatethevalue of incentives


Incentives for the use of residential fire sprinkler systems in u s communities3

Incentives for the Use of Residential Fire Sprinkler Systems in U.S. Communities

Types of incentives:

  • Financialtrade-offs

    - Developer

    - Builders

    - Homeowners

  • On-sitedesignflexibility

  • Off-sitedesignflexibility

  • Indirectvalue


Incentives for the use of residential fire sprinkler systems in u s communities4

Incentives for the Use of Residential Fire Sprinkler Systems in U.S. Communities

Estimatedvalue of incentives:

  • Homeowner-Oriented Incentives $145

  • Builder-Oriented Incentives $1,949

  • Developer-Oriented Incentives $1,271

    Typical incentives to home builders offset 33% of system cost


Incentives for the use of residential fire sprinkler systems in u s communities5

Incentives for the Use of Residential Fire Sprinkler Systems in U.S. Communities

Future research:

  • Identify the most influential types of incentives

  • Identify the most impactful stakeholder group to target with incentives.


Barriers and incentives related to the installation of home fire sprinklers

Thank you!

Questions?

Maria Figueroa – Regional Director

Fire Prevention Field Office

[email protected]

Jonathan Hart – Assoc. Engineer

National Fire Protection Association

[email protected]


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