What is AllShield?
AllShield develops mineral-based coatings and barriers for fire safety, acid resistance and structural durability — with no plastics, no PFAS and a low CO₂ footprint.
Frequently asked questions (FAQ)
General FAQ
Got questions about fire safety, roof protection or how AllShield fits your project? Here you'll find clear answers to the most common topics, from certifications and sustainability to solar panels, insurance and more.
Still have questions? Don’t hesitate to contact us.
Are AllShield products really non-combustible?
Yes. AllShield Blue and BarrierSheets are A1 certified.
Are your products compatible with common materials?
Yes. Proven on over 80% of standard materials including steel, EPS, PIR, PUR, bitumen, PVC, TPO, EPDM (for BarrierSheet), wood and concrete.
What types of buildings use AllShield?
Industrial, commercial and critical infrastructure buildings, especially those with flat roofs, PV systems, chemical zones or aging membranes.
Are your products sustainable?
Yes. AllShield products are VOC-free, REACH-compliant and developed to reduce the environmental impact of the built environment.
Do they work with solar panels?
Yes. Both products were specifically tested under PV systems and block fire spread effectively - horizontally and vertically. Blue is FM 4484 Approved and BarrierSheet is FM 4478 Approved
Do they extend the lifespan of roofs?
Yes. AllShield Blue coating offers UV, mechanical and chemical resistance; BarrierSheet protects membranes and insulation as a cover board below a new roofing membrane.
Are they waterproof?
Both products act as a fire barrier and are not waterproof and cannot be used as a waterproof subsistute for a roofing membrane.
Can they be used in retrofitting roofs?
Yes. AllShield Blue is applied directly over existing waterproof membranes. BarrierSheet is installed under new membranes during re-roofing or re-roofing for PV retrofits.
What about insurers?
AllShield Blue is FM4482 approved and NEN 7250:2021 (under review) tested and widely accepted. For BarrierSheet, insurers increasingly recognize it as a fire safety solution, supported by field data and lab testing.
AllShield BarrierSheet FAQ
Curious about how AllShield BarrierSheet works, where it fits in your roofing system, or why it’s different from gypsum? This FAQ covers everything you need to know, from installation and testing to solar panel compatibility and weight.
Still have questions? Don’t hesitate to contact us.
Is BarrierSheet FM Approved?
AllShield BarrierSheet is FM 4470 and FM 4478 Approved.
What is BarrierSheet?
A 2,5mm mineral cover board placed under the waterproofing layer to stop fire spread below in existing or new insulation, membranes or PV arrays. No plastics. No PFAS.
Is it used in real buildings?
Yes. Installed since late 2024 in several commercial roofs and approved by insurers and risk engineers.
What substrates are compatible?
EPS, PIR, PUR, bitumen. It works with all membranes and insulation boards.
Is it designed for solar panel systems?
Yes. It is especially effective in stopping penetration of roofs and lateral spread beneath and between PV panels.
How is it attached?
Mechanically fastened with Tule screws (Eurofast, Guardian, BossCover), or bonded depending on the build-up of the roof based upon the wind load of the location and height of the building.
Why is it better than gypsum boards?
Gypsum loses integrity once wet or dehydrated by heat. A BarrierSheet has a crystalline structure and remains structurally and thermally stable.
Does it add significant weight?
No! Approx. 3 kg/m² making it suitable for almost all roof constructions.
Is it waterproof?
No. It must be used under a waterproof membrane. It is not a top layer.
Where has it been tested?
At Kiwa-BDA, Efectis, ZAG Ljubljana and in real fire simulations. FM4470 and FM 4478 testing is planned for summer 2025.
AllShield Blue FAQ
Want to know how AllShield Blue protects your roof from fire, even under solar panels? This FAQ gives you the essentials, from certifications and chemical resistance to application methods, warranty tips and long-term performance.
Still have questions? Don’t hesitate to contact us.
Is AllShield Blue FM Approved?
Yes. AllShield Blue is FM 4484 Approved, the Approval Standard for Retrofit Coatings for Roof-Mounted Rigid Photovoltaic Module Systems – the highest international FM Approval for roof fire safety.
It also holds FM 4482 Class 1 Approved for repair and maintenance coatings.
What makes it fireproof?
A1-certified mineral composition. No plastics. No PFAS. It doesn’t ignite, melt or drip.
Is it suitable under solar panels?
Yes. It stops ignition and spread under PV panels and has been tested at Kiwa-BDA for NEN 7250:2021 conditions, ZAG and FM 4484 in summer 2025.
How is it applied?
Sprayed or rolled at 2–3 mm thickness over bitumen, PVC or EPDM membranes.
Will it void my current roof warranty?
Some roofing manufacturers may withdraw warranty. Always check with them before applying AllShield Blue.
Does it help waterproof the roof?
No. The roof has to be watertight. It adds fire protection and it’snot a leak fix.
How does it perform against acids?
It is resistant to industrial acids like sulfuric and nitric acid — suitable for chemical zones.
How long does it last?
Tested for >50 years of service life. Comes with a 10-year product warranty.
What insulation is it compatible with?
Works well on roofs with EPS, PIR, PUR insulationthe AllShield Blue covers the watertight roofing membrane and protect the underlayeing layers and building.
Where has it been tested?
Efectis (A1, 13501-1 fire), FM Global (FM 4482, summer 2025 FM 4484,), Kiwa-BDA NEN 7250: 2021 (under review) (Dutch fire tests), — including in PV fire simulations.
