FLIRmask Reflective Sheeting (30m x 1m) — Premium Thermal Reflective Material for Indoor Growing
Best for: Professional and serious growers wanting maximum light efficiency and thermal control in one material
Our thoughts
This is genuinely different to standard reflective foil. The dual-sided tech and thermal performance justify the premium price. If you're running a tight, efficient room and want both light and heat working properly, it's worth the investment. One we recommend for growers past the budget stage.
FLIRmask Reflective Sheeting is a premium thermal reflective material engineered to optimise both light reflection and heat retention in indoor growing environments. Supplied as a 30-metre x 1-metre roll, it uses dual-sided aluminium and E-glass technology to reflect up to 70% of radiated heat back into your growing space whilst maximising light efficiency from your grow lights. This is professional-grade reflective sheeting designed for growers who treat energy efficiency seriously.
How it compares
FLIRmask sits at the premium end of the reflective material market, competing with Orca Film and other high-performance options.
- Reflects 70% of thermal radiation — significantly higher heat reflection than standard Mylar or aluminium foil
- Dual-sided technology: reflective side maximises light efficiency; insulated side controls exterior heat loss
- Thinner than alternatives (0.22mm gauge) yet more durable — resists chemicals, algae, mould, and flame
- Orca Film offers higher light diffusion (94% reflectivity); FLIRmask prioritises thermal control alongside light performance
- Standard Diamond Mylar cheaper but significantly lower thermal performance
The key difference: FLIRmask solves two problems at once — light efficiency and heat management — whereas budget materials force you to choose.
Usage guidance
Installing reflective sheeting
Cut to size with scissors, then line your growing space or tent. Overlap each sheet to eliminate gaps — this is critical for thermal performance. Use aluminium tape for temporary setups, staples or fixing brackets for permanent installations. Ensure no holes or spaces between sheets; sealing matters more with premium materials because you're relying on the thermal barrier.
Maximising thermal efficiency
Line walls, ceilings, and ducting areas where heat tends to escape. The insulated side should face outward if you're trying to prevent heat loss through structural walls. The reflective side faces inward toward your growing space to bounce light and radiated heat back into the growing area.
In sealed rooms
FLIRmask dramatically reduces heat transfer into walls and structural assemblies. This means your heating and cooling costs drop because you're not warming the building fabric — you're keeping energy where it counts, in the growing zone.
Flexibility and durability
Despite being thin, FLIRmask is rigid when installed. It won't sag or degrade under normal growing conditions. It's resistant to the damp, algae, and chemical exposure common in indoor growing environments, so it'll outlast budget foil by years.
Technical specifications
- Roll dimensions: 30m x 1m
- Roll weight: 8kg
- Material composition: 98% aluminium outer layer (0.22mm gauge) + E-glass woven inner layer
- Thermal reflection: 70% of radiated heat at temperatures up to 600°C
- Insulation performance: 70-80% thermal reflection when insulated side faces outward
- Temperature resistance: Up to 500°C; melting point >650°C
- Durability: Less than 3% shrinkage or warping; no delamination under temperature cycling
- Chemical resistance: Resistant to algae, mould, flame, and common grow room chemicals
- Flexibility: Easy to cut and install; rigid and durable when in place
- Suitable for: Indoor and outdoor use; small to large-scale operations
Who this is for
- Experienced growers running sealed or semi-sealed rooms where energy costs matter
- Commercial and professional operations prioritising efficiency over initial outlay
- Anyone expanding their setup and wanting to future-proof their reflective system
- Growers tired of replacing cheap foil; want durability and consistent performance
- Operations concerned with precise temperature control and minimal heat loss
- Anyone serious about maximising light efficiency from high-output grow lights
Our take
FLIRmask is the right choice if you're past the budget stage and want reflective sheeting that actually performs. The thermal reflection capability is genuinely useful — it reduces your heating and cooling costs while keeping light efficiency high. It's durable enough that you won't be replacing it every season, which offsets the premium price quickly.
This is proper kit at a level above standard foil. Good time to buy while stock lasts if you're planning a room build or upgrade. Does exactly what it should — controls heat, reflects light, lasts years.
