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Knowledge

Answers to questions from practice.

Short, concrete articles on material, roof build-up, moisture, weight and evidence. Each article ends with the question: which line fits this situation?

  1. 01Mineral-bound nonwoven sheets: chemistry, roof build-up and the limits of fire tests.A thin fibre-reinforced mineral layer can add protection beneath new roof waterproofing. Publicly documented BarrierSheet assemblies help explain the principle, its benefits and the questions that remain.Compare
    Mineral-bound nonwoven sheets: chemistry, roof build-up and the limits of fire tests.
  2. 02Is A1 enough? What a material class does and does not say about your roof.A non-combustible board is a strong starting point. But a roof is not a board: it is a stack of layers, seams, fixings and a PV system on top. Which evidence belongs to which level?Compare
    Is A1 enough? What a material class does and does not say about your roof.
  3. 03Above or below the membrane: where does the mineral layer belong?Two boards can look alike and still play completely different roles. The position in the roof determines loading, installation and evidence. A walk through the build-up, from bottom to top.VlamShield DEK
    Above or below the membrane: where does the mineral layer belong?
  4. 04Moisture-resistant is not waterproof. What to look for in mineral boards outdoors.A board that tolerates moisture is not yet waterproofing. And a board that feels dry and solid in the office says little about ten winters on a roof edge. What do you request, and where do you look?VlamShield WEER
    Moisture-resistant is not waterproof. What to look for in mineral boards outdoors.
  5. 05What does a mineral layer weigh on 5,000 m²? Working with surface mass.A few kilograms per square metre sounds like little. On a logistics hall it quickly becomes the weight of several trucks. A worked example with the reference values from the data sheets cited.VlamShield DEK
    What does a mineral layer weigh on 5,000 m²? Working with surface mass.
  6. 06Coating or board? What installation on the roof decides.A liquid mineral layer and a dry board can have the same aim and still mean completely different days on site. The practical differences side by side.VlamShield VLOEI
    Coating or board? What installation on the roof decides.
  7. 07Which evidence belongs to which layer? Reading reports without the logo reflex.A sound file starts with the scope of a report, not with the emblem on the first page. A reading order for classifications, ETAs and system assessments.Compare
    Which evidence belongs to which layer? Reading reports without the logo reflex.

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