Flamebar BW11 Technical
Are you aware UL has clarified the proper use of Uninsulated Fire Duct?
Underwriters Laboratories (UL) published an article: Ducts – Providing Clarity on Fire Rated Ventilation Ducts and Assemblies. The article may be limited in scope, but provides some clarity on the use of Uninsulated fire duct systems from UL Category HNLN.
Gypsum Association: Technical Assistance / FAQs / Errata
The Association’s technical staff is available for consultation on specific issues relating to the specification or use of gypsum board. [Read more]
Technical Guides – available upon request
Firespray Fire Rated Duct Brochure
Firespray Grease Duct Brochure
We Facilitate Local Approvals
Conquest Firespray provides technical support to facilitate local approvals with the Authority Having Jurisdiction throughout the United States. We provide technical support to professional design engineers, general contractors, architects and mechanical subcontractors.
Enhanced Duct Standards
Conquest Firespray constructs our ductwork, before spraying, to an enhanced SMACNA standard. The duct will be constructed to a minimum 6-inch pressure classification for both positive and negative pressures with galvanized, stainless or PVC-coated materials. The duct can also be constructed to standards greater to BW11 minimum. We will construct BW11 to any shape or size as required by the design engineer and no re-design is necessary with BW11.
Firespray Flamebar System Technical Guidelines
The Flamebar System can be utilized in numerous applications such as stairwell pressurization, make up air, exhaust air, kitchen exhaust, laboratory exhaust and any application where air systems are protected with a 2-4 hour rated assembly. Flamebar BW11 provides the rated enclosure and is specified as a fire rated duct system. We offer a complete assembly including duct construction, fire rated gasket and caulk, G-clips and through wall penetration details.
Testing Approvals and Listings
The Flamebar System has been thoroughly tested according to ASTM and ISO standards.
| ISO 6944 (1985) | Fire Resistive Tests Ventilation Ducts |
| ISO 6944-01 (2008) | Fire Resistive Tests Ventilation Ducts |
| ASTM E119 | Fire Test of Building Construction and Materials |
| ASTM E84/UL723 | Surface Burning Characteristics – Flame Spread (Intertek) – Smoke Spread (Intertek) |
| ASTM E814 | Firestop Test |
| ASTM E136 | Non Combustibility Test |
| ASTM C518 | Durability Test |
| ASTM E2336 | Fire Resistive Grease Duct Enclosure Systems |
| UL1978 | Test Standard for Grease Ducts (Intertek) |
UL Listings
| Ventilation Duct Assemblies Certified for Canada | HNLJ7.V-1 |
| Uninsulated Ventilation Duct Assemblies | HNLN.V-5 |
| Uninsulated Ventilation Duct Assemblies | HNLN.V-18 |
Intertek Listings
| ASTM E119 Riser Duct | FIL_FMF 120-10 |
| ASTM E814 Through Penetration Fire Stop System | FIL_FMF 120-09 |
| ASTM E2336 Grease Duct | FIL_FMF 120-01, 02, 03, 04 |
| Through Penetration Fire Stop System | XHEZ.F-B-7005 |
| Through Penetration Fire Stop System | XHEZ.F-B-7017 |
| Through Penetration Fire Stop System | XHEZ.F-B-7029 |
| Through Penetration Fire Stop System | XHEZ.F-B-7030 |
| Through Penetration Fire Stop System | XHEZ.W-L-7133 |
| Through Penetration Fire Stop System | XHEZ.W-L-7160 |
| Through Penetration Fire Stop System | C-AJ-7094 |
| Intertek ETL EEV | 3114858 |
| Intertek SPEC ID | 16257 |
| ISO 6944-01: | |
| Rectangular | |
| Uninsulated 2 hour B (vertical) | FIL_FMF 120-11 |
| Uninsulated 2 hour B (horizontal) | FIL_FMF 120-12 |
| Uninsulated 2 hour A (vertical) | FIL_FMF 210-01 |
| Uninsulated 2 hour A (horizontal) | FIL_FMF 150-01 |
| Uninsulated 4 hour B (vertical) | FIL_FMF 240-02 |
| Uninsulated 4 hour B (horizontal) | FIL_FMF 240-01 |
| Round | |
| Uninsulated 4 hour B (vertical) | FIL_FMF 240-03 |
| Uninsulated 4 hour B (horizontal) | FIL_FMF 240-04 |
| Uninsulated 2 hour A (vertical) | FIL_FMF 150-02 |
| Uninsulated 2 hour A (horizontal) | FIL_FMF 120-13 |
