The Leiden roof dossiers
Four starting points for a clearly bounded roof plan. Compare what needs investigation, not just a material name.
Roof repair in Leiden
Targeted repair starts with an explained defect and a clear work boundary. Record damp patches, earlier interventions and visible changes before selecting
Open the dossierFlat roofs in Leiden
A flat roof is more than its visible membrane. Drainage, upstands, penetrations and existing layers determine which questions must be answered before repai
Open the dossierTiled roofs in Leiden
Assessing a tiled roof means looking beyond the visible tiles. Underlying layers, fixing, ridges and junctions together determine the useful question for r
Open the dossierRoof maintenance in Leiden
Roof maintenance becomes easier to hand over when observations, actions and open questions share one record. Start with an identifiable inventory of roof a
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