Introduction
King County Washington has specific guidelines outlining when a residential structure requires an automatic fire sprinkler system, just like they have guidelines for commercial properties. These regulations help mitigate potential life-safety issues related to emergency access, water supply, and anticipated response times. In this guide, we delve into the Residential Fire Sprinkler Requirements in King County, WA, ensuring your residential construction project aligns with the local rules.
Requirements
Requirements for Residential Properties King County mandates automatic residential fire sprinkler systems under certain conditions for properties with habitable spaces. The guidelines are comprehensive, covering different scenarios like the property size, location, access to fire department equipment, water supply, fire hydrant proximity, and house size. They even account for exceptions and special circumstances, such as temporary and medical hardship mobile homes. We know at this point you're thinking, wow this is a lot! But that's why you need a valuable partner in the trade.
Fire Access Road Requirements
A fire apparatus access road or fire lane must meet specific requirements for width, weight capacity, proximity to the building, grade, clearance, and turning radius. These specifications ensure the accessibility of fire department vehicles during emergencies. Failure to meet these criteria can necessitate the installation of an automatic residential fire sprinkler system.
Water Availability
The local Water District or utility can provide information regarding fire hydrant distances and water supply, known as fire flow. This fire flow is a crucial determinant of whether an automatic residential fire sprinkler system is necessary. The property's reliance on well water and its size also significantly influence this decision.
Fire Access Road Improvements vs. Sprinkler System Installation
You might consider making road and driveway improvements to meet King County's standards, but doing so could trigger additional permit requirements. It's important to weigh the cost and time implications of these improvements against installing an automatic residential fire sprinkler system.
Automatic Residential Sprinkler System Requirements
If an automatic sprinkler system is to be installed in the residence, compliance with fire apparatus access and water supply (fire flow) is not required. The system must be designed by a Washington State certified sprinkler designer and installed following the National Fire Protection Standard (NFPA) 13D. That's where we come in! The professionals at Empire Fire Protection have the experience to take on any project.
Sprinkler System Inspections
It's mandatory to complete the inspection and functional flow test for the fire sprinkler system before the framing inspection is allowed. All structures with installed residential fire sprinklers, including mobile and modular homes, must pass all inspections and flow tests before receiving a Certificate of Occupancy. Not to worry though, your fire sprinkler contractor will take care of this during the installation process.
Residential Automatic Sprinkler System Submittal Requirements
Your sprinkler system permit application must include various pieces of information, such as water supply data, site plans, floor plans, riser details, hanger and sprinkler details, and hydraulic calculations. If the residence is served by a well, a holding tank and a pump may be necessary. Also, make sure the plans and hydraulic calculations are stamped by a person holding a current Sprinkler Certificate of Competency issued by the State of Washington.
Final Thoughts
Understanding the Residential Fire Sprinkler Requirements in King County, WA, is crucial when building or remodeling a home. Non-compliance can lead to project delays, increased costs, and potential safety issues. If you're uncertain about these requirements or have further questions, don't hesitate to reach out to our team of professionals via the Contact Us page. We're here to help you navigate these regulations and ensure your residential project aligns with all necessary safety standards.
Remember, your home's safety should never be compromised. Investing in a reliable residential fire sprinkler system is an investment in the protection of your property and the lives within.
