THE HAGUE & SURROUNDING AREA
Knowledge centre
Start with your question about leaks, materials, maintenance or planned work. Read the short answer, explore the explanation and use the advice to discuss a proposal for your own roof.
33 results
A roof leak: what can you do now?
Move belongings and collect dripping water only where it is safe.
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Bitumen or EPDM: compare the whole roof system.
Begin with the existing substrate, layers and drainage.
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Your roof renovation checklist.
Agree what will be removed and what will remain.
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Organising roof maintenance for an owners’ association.
Group residents’ reports by address and roof section.
Read moreLeaks after rain: what information helps?
Record the room, ceiling position and time when water appears.
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A leak near the chimney: assess every connection.
Describe the indoor damp area relative to the chimney.
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Reporting storm damage safely.
Stay away from loose or hanging parts and do not climb onto the roof.
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Repair or replace the roof?
Ask whether the problem is confined to one detail or occurs across several roof sections.
Read moreOverlaying a bitumen roof: what needs checking?
Collect records of the existing roofing layers and earlier work.
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Reading an EPDM roofing quotation.
Look for the named membrane system, substrate and retained layers.
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Replacing roof tiles: beyond colour and profile.
Identify the roof sections, dormers, windows and chimneys included.
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Preparing work on a decorative slate roof.
Document the complete pattern as well as small details.
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Renovating a mansard roof.
Use an overview to identify the upper and lower roof surfaces, dormers and gutters.
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What belongs beneath the roof tiles?
Ask for a readable description of retained and new layers.
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Planning insulation with roof renovation.
Explain how the loft is used and any future plans.
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Condensation or a roof leak?
Record where moisture appears and whether it also occurs on dry days.
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Roof insulation: keep a clear subsidy file.
Check the current RVO scheme for your situation before instructing work.
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Keeping a useful roof maintenance record.
List roof surfaces, outlets, gutters, rooflights and penetrations using consistent names.
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Gutter maintenance: describe the whole route.
Explain whether water runs over the edge, drips below a joint or marks the facade.
Read moreWater on a flat roof: add context to the photograph.
Record when rain stopped and whether the water pattern changes.
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Roof cleaning: agree the purpose and method.
Explain whether the issue is debris in drainage, appearance or a finding from an inspection.
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Maintaining a dormer roof and its sides.
Describe the position of any damp mark relative to the window and side wall.
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Replacing a rooflight: agree more than the dome.
Explain your daylight and opening requirements.
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Lead and zinc work: name the component.
Identify whether the work concerns a gutter, flashing, dormer cheek or edge cover.
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Roof penetrations in a complete plan.
Mark each penetration on a roof overview and identify its purpose only if known.
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Comparing roofing quotations fairly.
First check that each proposal covers the same surfaces, edges and openings.
Read morePreparing an owners’ association roof inspection.
Gather dated reports and photographs by address and roof section.
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Completing roofing work with a clear record.
Review the original quotation and approved changes together.
Read moreRoof shapes explained
A roof shape describes its geometry, not its covering.
Read moreRoof tiles: materials, profiles and finishes
Clay or concrete, curved or flat, natural or glazed: tiles can be classified in several ways.
Read moreComparing roof-covering materials
From bitumen and rubber to tiles, slate and metal, compare the function and complete build-up first.
Read moreSustainable roofing: beyond service life
Service life, material waste and maintenance all matter.
Read moreHow much roof insulation? Thickness, Rd and Rc
Required thickness depends on the product’s thermal conductivity and the desired resistance.
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