INCA WFS net®
Prepare & Protect
Preparation and protection in place before it is needed
INCA WFS net® is a flexible, multifunctional fire protection net that expands when exposed to intense heat, closing its structure to create a protective barrier against fire, radiant heat and embers. It can be prepared and deployed around vulnerable areas, buildings and infrastructure before the fire arrives, providing physical fire and heat protection when wildfire threatens.
Protection can be applied across multiple layers – from the surrounding landscape and perimeter to the building itself and critical assets.
A new strategy for wildfire defense
INCA WFS net® introduces a fundamentally new approach to wildfire defense. When exposed to intense heat, the net rapidly expands and closes its structure, creating a protective barrier against the advancing fire front.
With a pre-installed SelfGuarding solution, the system remains discreetly prepared and can be deployed into its protective position immediately when needed. INCA WFS net® takes the heat at the fire front – creating a safer operational space for firefighters to work behind the barrier.
WFS net® takes the heat
Deployed at the fire front to reduce radiant heat, stop embers and slow fire spread.
You stay protected
Firefighters work behind the barrier in safer conditions with reduced exposure and greater control.
A new way forward
INCA WFS net® enables a proactive, coordinated approach to wildfire management – saving time, resources and lives.
How INCA WFS net® works
INCA WFS net® consists of a metal- or fibre-based substrate coated with an intumescent coating. When exposed to heat, expansion starts at approximately 120°C (248°F) and the coating can swell to approximately 50 times its original thickness.
The expanding coating closes the structure of the net and creates a protective barrier. Depending on the application and installation method, INCA WFS net® can provide fire resistance for up to two hours and withstand temperatures exceeding 1,100°C (2,012°F). For applications designed to prevent fire spread in peatlands, the resistance time can be significantly longer.
Flexible and multifunctional
INCA WFS net® can be used for wildfire protection outdoors as well as a range of other fire-protection applications, including battery compartments, steel, wood and wooden structures, tree trunks, attics, facades and foam insulation.
Reduces radiant heat and embers
Breathable – allows air and water through
Fast to deploy and easy to handle
Durable and built for harsh conditions
Reusable and recyclable
Minimal environmental footprint
INCA WFS net® creates a protected operational space – so you can focus on what matters most.
INCA BioShield™
A Living Layer of Protection
INCA BioShield™ is a concept for biologically enhanced protection zones that combines carefully selected, low-growing, climate-adapted vegetation with INCA WFS net®.
By replacing uncontrolled vegetation with selected ground-cover species, BioShield™ helps reduce combustible fuel, suppress unwanted vegetation and create more sustainable protection zones around buildings, infrastructure and other valuable assets.
INCA BioShield™ manages the vegetation. INCA WFS net® protects against the fire.
Download INCA BioShield™ product sheetSpecies by region
INCA BioShield™ does not rely on a single plant species. Each installation is designed with vegetation selected for local climate, rainfall, temperature, soil conditions, environmental regulations and ecological requirements.
Scandinavia / Northern Europe
White stonecrop
Sedum album
Mat-forming succulent
Biting stonecrop
Sedum acre
Mat-forming succulent
Thrift
Armeria maritima
Cushion-forming perennial
Grey hair-grass
Corynephorus canescens
Fine tufted grass
Yarrow
Achillea millefolium
Spreading perennial
Tolerates mowing
Mediterranean
Hardy ice plant
Delosperma cooperi
Mat-forming succulent
White stonecrop
Sedum album
Mat-forming succulent
Pale stonecrop
Sedum sediforme
Mat-forming succulent
Smooth rupturewort
Herniaria glabra
Mat-forming perennial
Sea heath
Frankenia laevis
Creeping evergreen perennial
USA (California)
Chalk dudleya
Dudleya pulverulenta
Rosette-forming succulent
Use nursery-propagated plants
Broadleaf stonecrop
Sedum spathulifolium
Mat-forming succulent
Hardy ice plant
Delosperma cooperi
Mat-forming succulent
Creeping sage
Salvia sonomensis
Low creeping evergreen perennial
Silver carpet aster
Corethrogyne filaginifolia ‘Silver Carpet’
Prostrate ground cover
Australia
Pigface
Carpobrotus glaucescens
Trailing coastal succulent
Use local-provenance stock
Creeping boobialla
Myoporum parvifolium
Prostrate evergreen shrub
Round-leaved pigface
Disphyma crassifolium subsp. clavellatum
Spreading succulent ground cover
Creeping saltbush
Atriplex semibaccata
Mat-forming saltbush
Muntries
Kunzea pomifera
Creeping ground cover
Southern Africa
Trailing ice plant
Lampranthus spectabilis
Trailing succulent
Hardy ice plant
Delosperma cooperi
Mat-forming succulent
Sour fig
Carpobrotus edulis
Trailing succulent
Red flames
Crassula capitella
Mat-forming succulent
Tropics
Lowland tropics of Malaysia, Indonesia, Thailand and Vietnam
Sea purslane
Sesuvium portulacastrum
Trailing coastal succulent
Pinto peanut
Arachis pintoi
Spreading perennial legume
Manila grass
Zoysia matrella
Low mat-forming grass
Needs regular mowing
Beach morning glory
Ipomoea pes-caprae
Trailing coastal vine
Needs regular pruning
No vegetation should be considered fireproof.
Plant selection should always be made together with local experts, to ensure ecological compatibility, avoid invasive species and protect biodiversity.
Plant performance always depends on species selection, climate, maintenance, drought conditions and local environmental factors.
Technical Specification
| Material | Coated net/mesh of metal or fibre material. Standard substrate quality is welded hot-galvanised steel. |
| Mesh size | 0.5–0.8 mm wire diameter. |
| Mesh eye – steel wire | 5–7 mm |
| Width | 120 cm |
| Length | Customer defined. Standard: 10 m per roll. |
| Weight – coated | 2.3–2.7 kg/m² |
| LOI – Limited Oxygen Index | >50 |
| Expansion rate | Approximately 50 times |
| UV | UV resistant |
| Material | Coated net/mesh of metal or fibre material. Standard substrate quality is welded hot-galvanised steel. | Length | Customer defined. Standard: 10 m per roll. |
| Mesh size | 0.5–0.8 mm wire diameter. | Weight – coated | 2.3–2.7 kg/m² |
| Mesh eye – steel wire | 5–7 mm | LOI – Limited Oxygen Index | >50 |
| Width | 120 cm | Expansion rate | Approximately 50 times |
| UV | UV resistant |
Durability
INCA WFS net® has been ASTM G154 and climate tested according to EOTA TR 024:2019-08, 2.2.5. Testing was performed for three weeks, with no visual changes concerning appearance or expansion ability of the fire protection net observed.
Disposal and Environment
Consumed INCA WFS net® is recovered and sorted as metal or construction waste. The product does not give rise to hazardous waste during use, construction or production and is not classified as hazardous waste during demolition or dismantling according to the standard referenced in the product sheet.
Toxic Gases and Smoke During Expansion
During expansion, water steam and CO₂ are released. The process is self-extinguishing and endothermic, with no combustion, resulting in cooler smoke gases.
Toxic gases formed during expansion have been tested by a third-party research institute according to ASTM E662 and BSS7239. Full test results and technical specifications are available in the product sheet.
What does your situation require?
Tell us what you are looking to protect. We will come back with how INCA would approach it.