In modern construction, stair design is a critical component of safety, accessibility, and structural integrity. Closed riser staircases play a crucial role in ensuring compliance with fire safety regulations and building codes, making them a preferred choice for commercial, residential, and public buildings. Architects, builders, and developers must understand how precast concrete risers and precast concrete stair treads contribute to fire resistance and long-term durability while meeting regulatory standards.
This article explores the importance of closed riser staircases, their impact on fire safety, and why precast concrete manufacturers offer the best solutions for high-performance stair systems.
What Are Closed Riser Stairs?
A closed riser staircase consists of steps where the vertical space between each tread is fully enclosed, preventing light and airflow from passing through. This design differs from open riser staircases, which have gaps between the treads.
Closed riser staircases are commonly used in:
- Commercial buildings
- Multi-family housing units
- Public institutions
- Industrial facilities
When considering fire safety, closed riser staircases provide enhanced containment by limiting the spread of smoke and flames through stairwells, making them an essential feature in buildings with strict safety codes.
How Closed Riser Stairs Improve Fire Safety
1. Fire Containment and Smoke Control
In the event of a fire, open staircases can allow smoke and flames to spread quickly between floors, creating dangerous conditions for occupants. Closed riser staircases act as a fire barrier, slowing the spread of smoke and reducing oxygen flow, which can help contain a fire in one area.
2. Enhanced Evacuation Routes
Building codes require safe and accessible escape routes in multi-story structures. Precast concrete risers contribute to a sturdy and fire-resistant stair system, ensuring safe passage for building occupants during an emergency. Unlike wood or metal alternatives, precast concrete stair treads do not burn, warp, or weaken under high temperatures, making them a superior choice for fire-rated stairways.
3. Compliance with Building Codes
Many jurisdictions mandate the use of closed riser staircases in certain building types, especially in enclosed stairwells and fire-rated corridors. Fire codes often require materials that offer structural integrity during a fire, and precast concrete treads provide the strength and durability needed to meet these regulations.
The Advantages of Precast Concrete Stair Components
1. Durability and Load-Bearing Capacity
Precast concrete stair treads are engineered to handle high foot traffic and heavy loads, making them ideal for commercial and industrial applications. Their reinforced construction ensures long-term performance without the risk of warping or structural failure.
2. Fire and Heat Resistance
Unlike wood or metal stairs, precast concrete products offer excellent fire resistance, ensuring that staircases maintain their structural integrity in the event of a fire. This quality makes precast concrete risers a preferred choice in fire-rated stairwells.
3. Low Maintenance and Longevity
Precast stair components require minimal maintenance and provide exceptional longevity. Their non-porous surface resists moisture infiltration, preventing deterioration over time.
4. Seamless Integration with Various Stair Designs
Precast stair elements can be customized to fit different styles, including:
- Fully enclosed closed riser staircases
- Hybrid staircases, such as open riser closed stringer stairs, which combine modern aesthetics with added support
- Commercial and institutional staircases with integrated handrails and landings
Regardless of the design, precast concrete manufacturers can produce stair components that meet both functional and aesthetic requirements.
Why Choose Precast Concrete for Stair Construction?
For architects and builders seeking a reliable stair solution, precast concrete manufacturers offer several key benefits:
- Precision engineering for consistent quality and easy installation
- Fire-resistant materials that comply with building codes
- Customizable designs to match project specifications
- Sustainable solutions that contribute to long-term cost savings
Choosing precast concrete stair treads and risers ensures that staircases are not only safe and compliant but also durable and aesthetically pleasing.
Why DC Kerckhoff Is the Trusted Manufacturer for Precast Stair Solutions
DC Kerckhoff is a leading provider of precast concrete products, specializing in high-quality precast concrete stair treads and risers for commercial, residential, and institutional projects. Our Stone Cast architectural concrete exceeds ASTM C 1364 standards for strength, durability, and fire resistance, making it the ideal solution for closed riser staircases and other stair designs.
With decades of expertise, DC Kerckhoff partners with architects, builders, and developers to provide:
- Custom-engineered stair components for enhanced fire safety and code compliance
- Durable, non-combustible materials that ensure long-lasting performance
- Precision-crafted designs for seamless integration into high-end construction projects
For fire-rated stair systems that meet the highest safety and quality standards, contact DC Kerckhoff today at (239) 597-7218 or visit our website to learn more about our precast concrete stair solutions.
Sign up to get unlimited and immediate technical documents, requests for quotes, and helpful support from our experienced team.
Sign up