Compare
Three lines
side by side.
The same questions for each line: where the layer sits, what goes on top, how it is installed and which evidence belongs to it.
| VlamShield DEK | VlamShield WEER | VlamShield VLOEI | |
|---|---|---|---|
| Principle | Thin mineral cover board, factory-made | Weather-resistant, glass-fibre-reinforced mineral board | Site-applied mineral layer |
| Position in the roof | On the insulation, below the membrane | Exposed at edges, upstands and penetrations | On the existing membrane, below the PV |
| Situation | New build, new membrane | Details on new and existing roofs | Existing PV roof, membrane stays in place |
| Installation | Lay dry, fix per system, cover immediately | Cut to size, fix mechanically, joints water-shedding | Prepare substrate, mix, apply, cure |
| Added mass | Reference 5.9 to 9.8 kg/m² (6.4 to 12.7 mm) | Reference around 10 kg/m² at 10 mm, at details only | Per system data sheet; defined per project |
| Moisture and weather | Installed dry; sits below the waterproofing | Reference documented for external use (category X) | Sits in the weather; adhesion, seams and drainage decisive |
| Reaction to fire, material | Reference board A1 (EN 13501-1) | Reference board A1 (EN 13501-1) | Not published without system documentation |
| Performance of the roof assembly | Separate assessment of the complete assembly | Separate assessment of the detail as a building element | Separate assessment of the system on the existing membrane |
| Waterproofing | No, the membrane remains the waterproofing | No, joints shed water to the membrane | No, the membrane remains the waterproofing |
| The quotation defines | Board, thickness, fixing, documents | Board, thickness, fixing, detail drawing, documents | System, thickness, consumption, conditions, documents |
Reference values come from the manufacturer documents cited and apply to those makes. The quotation names the specific board or system with its own documentation.
Applications
From situation to product line
Three situations cover most projects. We discuss the exceptions roof by roof.
- 01New roof or new membraneThe build-up is open. This is when a cover board fits between insulation and membrane.Matching product lineVlamShield DEK→
- 02Existing PV roof, membrane stays in placeThe membrane stays. The question is what can go on top of the existing waterproofing.Matching product lineVlamShield VLOEI→
- 03Roof edges, upstands and penetrationsEverything meets at the edge. This is where a weather-resistant board fits.Matching product lineVlamShield WEER→
Three lines. One question: where in the roof?
