THE HAGUE & SURROUNDING AREA
Roofing dictionary
An unfamiliar word in a quotation or roof report? Find its meaning, read a practical example and follow the links to the relevant roofing work.
60 results
Extension roof
The roof of an addition attached to an existing building; the facade connection is part of the plan.
Read moreCapping
A protective finish over a wall, chimney or roof edge.
Read moreRoof fall
A slight slope that guides water towards a drainage point.
Read moreBallast
Weight such as gravel used to hold parts of a roof system in place; loading must be assessed.
Read moreBitumen
A material used in roofing membranes, including flat-roof systems.
Read moreFascia
Visible boarding or cladding along the edge of a roof or overhang.
Read moreCondensation
Water forming when water vapour cools into liquid. Indoor moisture is not automatically a roof leak.
Read moreRoof decking
The boards or panels supporting the roof build-up above them.
Read moreRoof penetration
A component that allows a pipe or other service to pass through the roof.
Read moreRoof pitch
The steepness of a roof surface, relevant to covering selection and details.
Read moreRoof inspection
An assessment of accessible roof components, with findings and possible next steps.
Read moreRoof structure
The roof form and associated structure above a building.
Read moreDormer
A projection from a sloping roof that provides additional space and usually daylight.
Read moreRoof build-up
All the layers of the roof, from its base to the outer covering.
Read moreRoof overhang
The portion of a roof extending beyond the external wall.
Read moreRoof edge
The outer termination of a roof surface and its finishing details.
Read moreRoof edge trim
A profile used to finish the edge of a roof covering.
Read moreRoof surface
A continuous roof section; identifying sections helps define the quotation.
Read moreVapour control layer
A layer that limits water-vapour movement. Its use must suit the complete roof build-up.
Read moreLoad-bearing structure
The components carrying the roof and its loads; assessment may require a structural engineer.
Read moreEPDM
A synthetic rubber used in roof waterproofing systems.
Read moreFolded seam
A folded joint between metal sheets, for example on a metal roof.
Read moreGutter bracket
A bracket supporting or securing a gutter.
Read moreGutter outlet
The opening or connection carrying water from a gutter into the drain.
Read moreGreen roof
A vegetation system over a suitable roof build-up, requiring assessment of loading, drainage and maintenance.
Read moreRainwater drainage
The components that carry rainwater away from the roof.
Read moreHip
The external sloping line where two roof surfaces meet.
Read moreInsulation value
A value describing the thermal resistance of a material or assembly; ask which value the quotation means.
Read moreRoof valley
The channel-shaped junction where two sloping roof surfaces meet.
Read moreThermal bridge
A point where heat passes more readily than through surrounding insulated components.
Read moreSlates
Small overlapping roofing elements forming a roof surface or cladding.
Read moreLeak investigation
An investigation into water entry; the indoor damp spot may not be directly below the roof opening.
Read moreRooflight dome
A light-transmitting element over an opening in a roof.
Read moreGlazed rooflight
A larger light-transmitting roof element, often made of several glazed sections.
Read moreLead flashing
A strip of lead used as part of a junction between building components.
Read moreMansard roof
A roof with a change in pitch, with a steeper lower section.
Read moreAdditional work
Work beyond the previously agreed scope; price and approval should be recorded.
Read moreLong-term maintenance plan
A Dutch maintenance plan covering expected work over several years.
Read moreRidge
The highest line where two sloping roof surfaces meet.
Read moreRidge tile
A roofing element used to cover the ridge of a tiled roof.
Read moreEmergency overflow
An additional drainage path in a system designed for it; its detail is part of the drainage assessment.
Read moreTemporary repair
A temporary measure for an urgent situation; permanent repair may still be required.
Read moreUnder-roof layer
The layer or assembly beneath the visible covering; its design depends on the roof system.
Read moreCompletion file
The collection of agreements, photographs and product documents supplied after the work.
Read moreUpstand
A raised part around a roof edge, rooflight or other roof feature.
Read moreOverlaying
Installing new roof covering while retaining existing layers, if assessment and system allow it.
Read moreTile batten
A horizontal batten supporting the roof tiles.
Read moreTile profile
The shape of a roof tile, such as flat or curved, influencing the roof appearance and fittings.
Read morePVC
Polyvinyl chloride, a plastic used in roofing membranes. The build-up must suit the chosen system.
Read moreDownpipe
A pipe carrying rainwater down from a gutter or roof outlet.
Read moreRenovation
Renewing or improving existing components; the precise scope belongs in the proposal.
Read moreScope of work
The agreed extent and boundaries of the work.
Read moreOrnamentation
Decorative patterns, ornaments or lettering on or around a roof.
Read moreFlashing strip
A connection strip at the junction of components, such as masonry and roof covering.
Read moreCounter-batten
A batten running down the roof slope beneath the tile battens.
Read moreOwners’ association
The Dutch association of property owners; shared roof work requires clear decisions, access and a contact person.
Read moreWaterproofing
The components and junctions intended together to keep water out of the relevant build-up.
Read moreWind loading
The forces wind applies to a roof and its fixings; the design must suit the building.
Read moreDormer cheek
The side wall or side cladding of a dormer.
Read moreZinc
A metal used for gutters, cappings and roof cladding; material and connections are assessed together.
Read more