1000 x 1000 mm Brett Martin Flat Glass Access Hatch

Brett Martin Flat Glass Access Hatch: A Modern Roof Access Solution

Combine elegance and functionality with the Brett Martin Flat Glass Access Hatch. Designed for flat roofs, this innovative product provides seamless access to rooftop areas while allowing natural light to transform interior spaces. Ideal for maintenance access, roof gardens, or terraces, it offers both practicality and aesthetic appeal.

Why Choose the Brett Martin Access Hatch?

• Modern Minimalist Design
  Featuring a slim, powder-coated aluminium frame (RAL 7016) and a flush-fitting glass panel, it complements contemporary architecture with its sleek, understated look.
• Natural Light Maximisation
  Brighten interiors effortlessly by letting daylight flood through the durable glass panel.
• Ventilation on Demand
  The integrated 24V actuator enables precise opening angles of 77° or 93°, depending on the size, to provide optimal ventilation.
• Effortless Installation
  Simplify your roofing project with the tapered kerb foot, eliminating the need for timber fillets. The integral membrane clamp further streamlines installation across all roof types.

Performance That Delivers

• Adaptability in Any Weather
  Optional wind and rain sensors enhance the access hatch's usability, adapting to unpredictable conditions with ease.
• Energy Efficiency Built-In
  With U-values as low as 1.72 W/m²K, this hatch offers excellent thermal insulation, helping to reduce energy costs.
• Certified for Safety and Durability
  Tested to stringent CWCT TN-67 Class 1 and ACR[M]001 Class B standards, ensuring reliability and long-lasting performance.
• Guaranteed Peace of Mind
  Comes with a 10-year warranty, offering confidence in its quality and durability.

The Brett Martin Flat Glass Access Hatch isn’t just an access point; it’s a sophisticated addition to any residential or commercial property. Its cutting-edge design and robust features make it the perfect choice for anyone looking to combine modern aesthetics with high performance.

All Brett Martin access hatches are manufactured to order and therefore cannot be returned. Please ensure the size and spec is correct before submitting your order.

Technical Datasheet

Roof Access and Ventilation:

• Provides effortless roof access with adjustable opening angles of 77° or 93°, depending on the hatch size.
• Equipped with a 24V actuator for smooth operation.
• Optional wind and rain sensors enable automatic response to weather conditions.

Energy Efficiency:

• Achieves a U-value as low as 1.72 W/m²K for exceptional thermal performance.
• Includes a Low-E soft-coat finish and 90% argon gas filling to minimise heat loss.

Modern Design and Glazing:

• Slimline aluminium frame with a powder-coated finish in RAL 7016 for a contemporary look.
• Flush-fitting double-glazed panel featuring a 6mm toughened outer pane and laminated inner pane with a PVB interlayer for safety.
• Inner pane thickness options: 6.8mm, 7.5mm, or 9.5mm depending on the size.

Light and Solar Control:

• Light transmission ranges between 77% and 79%, maximising natural daylight.
• Solar performance includes a G value of 0.56–0.59 and a shading coefficient of 0.64–0.68.

Installation Flexibility:

• Suitable for flat roof installations with pitches between 2° and 15°.
• Minimum pitch of 2° prevents water pooling and debris accumulation.

Durability and Weather
Resistance:

• Tested to withstand snow loads of up to 1200 N/m² and wind loads of up to 1000 N/m².
• Not recommended for operation when snow accumulates on the hatch surface.

Safety and Acoustic
Performance:

• Non-fragile design ensures compliance with safety standards.
• Laminated inner pane prevents glass shards from falling in case of breakage.
• Offers excellent noise reduction with sound insulation rated at 38dB (Rw).

• Please note, blinds can be added for
  additional light control but should be light-coloured, ventilated, and
  positioned away from the glass to prevent thermal stress.

Flat Glass Access Hatch Installation Guide

Non-Fragility Compliance:

• Designed to meet CWCT TN-67 Class 1 non-fragility standards and ACR[M]001 Class B when installed per Brett Martin Daylight Systems’ guidelines.
• Glass panels conform to BS EN 12150, BS 14449, and BS 1279, ensuring durability and performance.
• Foot traffic on the hatch is not recommended to prevent potential damage.

Access Control and Security:

• Key-operated isolator switch prevents unauthorised usage during roof access.
• Secured with self-drilling security screws, concealed under colour-matched caps for a clean finish.
• Hidden hinges and actuators with a 4kN locking force enhance security and ensure operation is only possible from inside the building.

Fire Safety Standards:

• Compliant with Class A to EN 13501-1 for fire performance, supported by its 6mm toughened outer pane.
• Achieves BROOF(t4) classification, meeting building regulation standards for fire resistance.
• Listed under CWFT materials in line with European Commission Decision 96/603/EC.

Wind and Snow Resistance:

• Certified to withstand wind loads in accordance with BS EN 1991-1-4: 2005.
• Tested for snow loads as per BS EN 1873: 2005 but should not be operated when snow accumulates on the surface.

The Brett Martin Flat Glass Access Hatch is built to withstand typical industrial use and is designed to perform effectively for up to 20 years under standard conditions. A 10-year warranty is included, offering assurance that the hatch will maintain its structural integrity, resist perforation, and remain weather-tight without significant distortion.

Warranty Coverage Includes:

Electrical Actuators:

• Covered by a 1-year warranty.
• Designed to operate for at least 10,000 cycles, ensuring long-term reliability.
  

Insulated Glass Units:

• Backed by a 5-year guarantee to safeguard against manufacturing defects.

If you notice any cracks in the glass upon delivery, please contact us immediately. It is crucial to report any damage within 12 hours of delivery to maintain your eligibility for a return or replacement. We urge you to reach out to us promptly so we can resolve the issue efficiently.