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The product information below is from the NBS Plus library of product clauses offered in NBS specification products. It has been created by NBS for Cavity Trays Ltd. Each product clause is authored in NBS format and is intended for inclusion in project specifications. Please note that NBS product guidance is not a replacement for the manufacturer's literature and it is recommended that Cavity Trays Ltd be consulted before specifying.

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Advantage Range Unleaded Gable Abutment Trays
Preformed, unleaded, DPC cavity trays for use at pitched roof/ gable abutments.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Beak Weep
Used to evacuate water from lintels, damp courses, cavity trays etc.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Cavi 60 MWR 200 Cavity Fire Stop
Fire rated, friction fit fire and acoustic cavity stop.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Cavi 60 Type 170 Cavity Closer
Fire rated, fire, thermal and acoustic cavity closer.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Cavi 60 Type SAF Cavity Stop
A sloping acoustic fire rated cavity stop.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Cavi 60 Type SAF Vertical Barrier
Vertical dual function cavity barrier.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Cavi240 Type CFIS cavity fire stop
Cavity fire stop.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Cavi60 Type WCA Cavicloser
Fire rated insulated, acoustic reduction structural cavity closer and DPC for wide cavities.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Cavi60/120 Type PC Lofthatch
A prefabricated and self-finished fire resistant insulated and fully removable loft access door and frame assembly.
L20 Doors/ shutters/ hatches
 
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Cavibrick airbrick
Plastics airbrick.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
Cavicloak Rise And Fall Barrier
Preformed self-supporting horizontal damp proof course (DPC).
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Cavicloaks and Cavilengths
Preformed, self-supporting, moulded DPC cavity wall cloaks and lengths.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Caviroll Premium DPC
Polyethylene DPC roll.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Combination Edge Insulators
Insulating/ acoustic barrier with DPC interfacing.
J40 Flexible sheet waterproofing/ damp proofing
 
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Continuity Closer
Reveal closer that interfaces with cavity insulation.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Contract Slate Roof Ventilator
H61 Fibre cement slating, H62 Natural slating
 
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CRSS Continuous Running Soaker Strip
A continuous soaker for use where slate roof abuts a masonry wall.
H61 Fibre cement slating, H62 Natural slating
 
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Curved Cavitray On Plan
Preformed, curved cavity trays for curved walls for use at various levels and applications.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Downward Hinged Loft Access Door
A prefabricated and fully hinged loft access door.
L20 Doors/ shutters/ hatches
 
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ECSC Eaves Continuous slate course
Used in place of slate course across bottom of slate roof, the ECSC eliminates commencement lap & cover problem.
H61 Fibre cement slating, H62 Natural slating
 
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ERV External Roof Ventilator
H71 Lead sheet coverings/ flashings, J31 Liquid applied waterproof roof coatings
 
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Euroweep-vent
Plastic perpend joint weep hole and cavity ventilator of reduced size.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Flush Slate Ventilator
High performance roof ventilator.
H61 Fibre cement slating, H62 Natural slating
 
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Hardedge Strip Special Eaves Protector
Eaves underlay support strip.
H60 Plain roof tiling, H61 Fibre cement slating, H62 Natural slating, H65 Single lap roof tiling
 
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Masonry Support Cavitray System
Cavity tray designed for use with masonry support systems.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Methane Barrier
Preformed methane cavity barrier lengths and angles.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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MWR Type V170 Cavicloser
Maximum width range contract closer.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Profiled DPCs
Pre-shaped DPC's designed for use with timber frame construction and SIP Systems.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Pyramid Weep
Low profile bleed straw styled weep.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Quickcloser
Insulated reveal DPC and cavity wall closer.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Radon Barrier
Preformed radon cavity barrier lengths and angles for use within cavity walls to arrest gases rising within cavity which are redirected and exhausted via high performance cavibricks.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Ridge and Hip Dry-Fix Ventilation System
Dry-fix system to promote roof space ventilation at ridge and hip.
H60 Plain roof tiling, H65 Single lap roof tiling
 
Sash Frame DPC
Insulated damp course profiles.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Small Weep Vent
Small plastics perpend joint, telescopic length, weep hole/ cavity ventilator.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Tiled Roof Ventilator
Sloping roof ventilator that can be introduced within tiled surface to provide defined level of air movement provision.
H60 Plain roof tiling, H65 Single lap roof tiling
 
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Type B Vertical DPC Cavitray
Preformed vertical DPC for insertion into the external masonry leaf of an existing cavity wall.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type BA Cavity Barrier Arch
Moulded cavity tray for traditional masonry arch opening, establishes a harmonizing profiled damp proof course (DPC) that protects the entire curved arrangement.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type C Cavitray
Preformed DPC cavity tray for all lintel styles and a variety of cavity widths.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type CD Cavity Dropcloak
Preformed DPC cavity tray.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type CLV Circular Louvred Ventilator
Circular polypropylene louvred ventilator.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type CSV
A circular louvered soffit ventilator for new, existing and refurbishment works.
G20 Carpentry/ timber framing/ first fixing
 
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Type CV
Corbel Eaves ventilator specifically designed for use at corbel and similar masonry-finished eaves arrangements.
H60 Plain roof tiling, H61 Fibre cement slating, H62 Natural slating, H65 Single lap roof tiling
 
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Type D Vertical damp proof course
Insulated vertical damp proof course.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type DIP Vertical damp proof course
Insulated vertical damp proof course that interfaces with cavity insulation.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type DPC Profiles – Raft Construction/ Ground Beam
Semi-rigid polyethylene perimeter DPC.
J40 Flexible sheet waterproofing/ damp proofing
 
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Type DPC Profiles – Timber Frame/ SIPS
Semi-rigid polyethylene DPC.
J40 Flexible sheet waterproofing/ damp proofing
 
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Type E Cavitray
Preformed, self-supporting, moulded DPC cavity tray for use with existing cavity walls.
C45 Damp proof course renewal/ insertion, F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type EROV
Roof ventilator roll.
H60 Plain roof tiling, H61 Fibre cement slating, H62 Natural slating, H65 Single lap roof tiling
 
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Type ERV
External roof ventilator for use on flat and low pitched roofs.
J41 Reinforced bitumen membrane roof coverings
 
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Type F Corrugated Abutment Flashing
An abutment flashing for plastics sheet against adjacent masonry.
H32 Plastics profiled sheet cladding/covering
 
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Type F Corrugated Ridge Flashing
A one part ridge flashing for plastics sheet.
H32 Plastics profiled sheet cladding/covering
 
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Type FWC Contract Closer
Insulated reveal DPC and cavity wall closer for use in five different cavity widths.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type G Cavitray
100 mm wide in lengths of 2.4 m.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
Type GBOT
Type G balcony opening tray.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type I In-Screed Services Duct
Pre-formed cast-in services duct.
P31 Holes, chases, covers and supports for services
 
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Type J DPC Support and Closer
Cavity closer for masonry, and DPC support at parapets and eaves.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type K Circular Cavitray
Preformed, moulded DPC cavity tray for circular windows.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type L Lintel Stop End
Lintel and cavity tray stop end.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type LTT Level Threshold Tray
Preformed DPC tray designed for use at threshold level.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type M Cavitray
Preformed cavity tray for use above utility meter boxes.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type N Sitesealer
Low gas permeability damp proofing membrane with methane and radon resistant qualities.
J40 Flexible sheet waterproofing/ damp proofing
 
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Type OEVWF
Eaves ventilator.
H60 Plain roof tiling, H61 Fibre cement slating, H62 Natural slating, H65 Single lap roof tiling
 
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Type OFV
Over fascia ventilator.
H60 Plain roof tiling, H61 Fibre cement slating, H62 Natural slating, H65 Single lap roof tiling
 
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Type P Cavitray
Preformed, horizontal cavity tray for use in parapet walls.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
Type PAT
Protective adjustable threshold damp proof course (DPC).
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type PV
Roof panel ventilator to restrain insulation at eaves and provide airflow route.
H60 Plain roof tiling, H61 Fibre cement slating, H62 Natural slating, H65 Single lap roof tiling
 
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Type PWRB Party Wall Rising Barrier
Party wall damp proof course (DPC).
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type Q Arresting Barrier
Preformed damp proof course (DPC) barrier to arrest water flow within cavity walls.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type RASV
An angled soffit ventilator for use with horizontal and sloping soffits for new, existing and refurbishment works.
G20 Carpentry/ timber framing/ first fixing
 
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Type RAV-FL
External roof ventilator for use on flat roofs at abutments with masonry.
J41 Reinforced bitumen membrane roof coverings
 
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Type RBS
Roof bonding strip.
H60 Plain roof tiling, H61 Fibre cement slating, H62 Natural slating, H65 Single lap roof tiling
 
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Type REV
Roof ventilator.
H60 Plain roof tiling, H61 Fibre cement slating, H62 Natural slating, H65 Single lap roof tiling
 
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Type SSV and Type SSV15
A preformed strip soffit ventilator for new works.
G20 Carpentry/ timber framing/ first fixing
 
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Type SV-FL (also Type SV-GP)
A preformed strip ventilator for use with horizontal soffits in new and existing works.
G20 Carpentry/ timber framing/ first fixing
 
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Type TAV ventilation duct
A cranked, telescopic, adjustable offset ventilation duct for use in cavity wall permitting air intake and one level to be routed to another level.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type TFC Timber Frame Cavitray
A solid pethyleyne damp proof course (DPC) and gas barrier.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type TST Threshold and Sill Overlay Tray
Preformed, moulded damp proof course (DPC) overlay tray for door thresholds and sills.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type U Cavitray
Preformed, self-supporting, moulded damp proof course (DPC) cavity tray for use under masonry sills.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
Type U Envelopment Tray
Envelopment tray for use with stone, concrete and jointed solid sills.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type USV universal soffit ventilator
A preformed strip ventilator for use at soffit level in existing and thatched roofs.
G20 Carpentry/ timber framing/ first fixing
 
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Type V Cavicloser
Contract closer.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type VF
Ventilating flashing – lead flashing with bonded sandwich base through which air can pass permitting breathing at the intersection being flashed.
H60 Plain roof tiling
 
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Type VG-S(slate)
Pre-shaped valley gutter for use on slate finished roofs.
H61 Fibre cement slating, H62 Natural slating
 
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Type VG-T (tile)
Pre-shaped valley gutter.
H60 Plain roof tiling
 
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Type W Cavitray Weepvent
Plastics perpend joint weep hole and cavity ventilator.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type WCA cavity closer/ dpc
Insulated, structural cavity closer and DPC for wide cavities.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type WCA Maxi Range
Vertical closer for wide cavity applications.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type X Cavitray
Preformed DPC cavity tray with attached lead flashing, for use at pitched roof/ gable abutments.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type X Multicourse Cavitray
Preformed damp proof course (DPC) cavity trays with attached lead flashing, for use with a range of masonry coursing heights at pitched roof/ gable abutments.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type X Remedial Cavitray
Preformed damp proof course (DPC) cavity trays with attached flashing for use as a remedial solution or with existing pitched roof/ gable abutments.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type Y Stone Mullion Assembly Cavitray
Cavity tray system for use at the head of cast stone or natural stone window or door surrounds.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Type Z Cavistrap
Strap to fix and support flexible damp proof course (DPC) installations.
F30 Accessories/ sundry items for brick/ block/ stone walling
 
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Ventilation Packs
A range of packs consisting of one or more Cavibricks (airbricks), cross cavity duct/ sleeve, internal grille and damp proof course (DPC) cavity tray.
F30 Accessories/ sundry items for brick/ block/ stone walling