Zintra Beams Closed Rafter
The Zintra Beams Closed Rafter is a ceiling-mounted acoustic beam system from Zintra, featuring a framed-edge rafter profile made from 12 mm polyester panels. It functions as a porous absorber across the full frequency range and is available in five modular size configurations to suit large commercial and institutional interiors.
Specifications
- Design: Closed Rafter (framed edge)
- 5 x 5 size: 3124 mm wide x 203 mm high x 3124 mm deep
- 4 x 5 size: 2515 mm wide x 203 mm high x 3124 mm deep
- 3 x 5 size: 1905 mm wide x 203 mm high x 3124 mm deep
- 2 x 5 size: 1295 mm wide x 203 mm high x 3124 mm deep
- 1 x 5 size: 686 mm wide x 203 mm high x 3124 mm deep
- Panel thickness: 12 mm (0.5")
- Panel density: 2.4 kg/m2
- Material: 100% solution-dyed polyester (colour-through PET)
- NRC: 1.0
- NRC with coffers: 1.5
- Recycled content: 60% post-consumer PET bottles, 35% pre-consumer PET chips, 5% polylactic acid (PLA)
- Beam clips per kit: 5x5: 104, 4x5: 86, 3x5: 68, 2x5: 48, 1x5: 28
- Installation method: cable suspension or Unistrut (installer's choice)
Applications
Closed Rafter beams suit large-scale commercial interiors where exposed ceiling structure is part of the architectural brief. The modular kit system allows progressive ceiling features, exposed-beam aesthetics, and superior sound absorption in spaces such as offices, lobbies, retail environments, and education facilities. Optional Coffer panels can be added to compatible Open Rafter, Closed Rafter, and Square designs to increase the NRC rating to 1.5.
Standards and compliance
ASTM E84: Class A. AS ISO 9705:2003: Group 1. EN 13501: B-s2-d0.
Frequently asked questions
How does Closed Rafter differ from Open Rafter?
Both share the same rafter-grid structure, but the Closed Rafter has a framed edge along its perimeter, giving a more enclosed, finished appearance. Open Rafter leaves the edges open for a more rustic look.
Can coffers be added to a Closed Rafter installation?
Yes. Zintra Coffer panels (sold separately, in sets of 8) are compatible with Closed Rafter installations and raise the NRC from 1.0 to 1.5. Coffers are not compatible with Rectangular or Parallel Beam designs.
How does the beam system install?
Kits ship flat-packed and require on-site assembly. Beams can be suspended via cable suspension or Unistrut. All beam clips needed for the chosen size are included in the kit.
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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FAQs
What is your return policy?
All refunds and returns are determined by the manufacturer's terms of sale. Change-of-mind refunds are not accepted, but all valid warranty claims will be managed by AKA Acoustics in compliance with consumer law.
How long will it take to receive my order?
Freight lead times will be provided upon order confirmation. Standard items typically ship within 4–6 weeks, while custom orders may take 6–12 weeks.
Is my payment information secure?
Yes, all payments are securely processed through Stripe and are protected under their Terms of Service. AKA Acoustics do not store any payment information ourselves.
How are freight costs calculated?
Freight costs are determined at the time of quotation to ensure accurate pricing based on your specific order. For any questions, please email sales@akaacoustics.com
How can I contact support?
For account inquiries, email accounts@akaacoustics.com. For order support, email sales@akaacoustics.com.