All Damp Proofing Products All of the Cavity Trays damp proofing products.   Type A/AA - Cavitray Arches head openings To form DPC and brickwork guide to curved head openings.   Type B - Vertical DPC Cavitray Provides vertical DPC element to existing cavity wall where skin changes from exterior to interior status.   Type BA - Cavity Barrier Arch Moulded DPC barrier only for arches, thus permitting traditional construction.   Type C - Cavitray for use with lintels over openings A range of preformed, ready-shaped DPC cavitrays for use with proprietary metal lintels.   CD Dropcloak - Drop Cavicloak A range of preformed, ready-shaped DPC cavitrays for use with proprietary metal lintels.   Cavicloak - Preformed damp courses Preformed moulded cavicloaks for use within caviity walls. Cavicloaks are shaped to fit the construction detail intended.   Cavilintel - Lintel with integral security shutter Load bearing lintel to provide support over openings, with integral shutter facility.   Caviroll - Premium DPC General purpose DPC suitable for horizontal and vertical damp-proofing of cavity walls.   Type E - Cavitray for insertion into existing walls To damp-proof an original outside wall which has become an inside wall by virtue of an extension being built.   Type F - Flashing for use with PVC corrugated sheeting Corrugated flashing suitable for use with plastic roof sheets only.   Type FAS - Flashing anchoring and DPC integrity system To secure flashing in position and ensure correct linking with conventional DPC.   Type G - Cavitray DPC system Provides reliable DPC system for general-purpose applications including changes of level, diaphragm walls and garage roofs.   Type J - DPC Support and Closer Provides DPC support and closes cavity under parapet copings. Provides means of closing cavity in open eaves.   Type K- DPC Cavitray for circular bullseye windows Cavitray damp-course for circular openings.   Type L -Lintel Stopends For use at the ends of most popular DPC steel lintels. They provide perfect ends, preventing discharge of water into cavity.   Lead Fab. -Lead Fabrications and lead supply services Pre-cut and pre-formed to suit a variety of applications.   Type M - For use over meter boxes Preformed cavitray for use over standard meter boxes (gas or electricity).   Type P - Cavitray for parapet walls To weatherproof parapet walls.   Type Q - Arresting Barrier Pre-shaped DPC barriers to arrest water-wash within cavity walls to specific areas or features.   Type R - Cavitray cavity closure/water-check tray Integral shuttering tray water-check former. Also suitable for closing cavities.   Rain Screen Baffles - Arresting planes Flashings and water baffle checks for stand-off rain screens.   Type TST - Threshold and sill overlay tray To protect against damp and water penetration around sills and thresholds.   Type U - Cavitray for undersills For use under brick or tile sills, providing a DPC and integral guide for sill formation.   Beak Weep - Perp weep Hidden appearance discreet weep glass-clear finish.   Small Weep - Hidden appearance weepvent To weep via a perp joint, thus promoting water evacuation from DPC, lintel or cavitray whilst permitting the cavity to breathe.   Type W - Cavitray weepvent Cavity wall weep, designed to provide an outlet drain to discharge water from tray/DPC.   Euroweep - Allternative perp/weep ventilator The purpose and function of the perp weep/ventilator is described on the Type W page.   Type X - Cavitray for gable abutments Preformed cavitray with integral lead flashing, forms stepped cavity DPC and flashing at the abutment of a pitched roof.   Multicourse - Type X for gable abutment multicourse applications Multicourse cavitrays are proportioned to accept a variety of walling materials and dimensions.   Advantage - Unleaded gable abutment trays DPC cavitray for stepped and staggered gable abutments.   Curved - Curved cavitray, on plan concave and convex Preformed cavitrays for use within curved mansonry, cylindrical towers, round structures.   Type Y - Stone mullion assembly cavitrays Preformed cavitrays for use with mullion window surrounds and similiar.   Type Z - Cavistrap to fix and support flexible DPC Preformed fixing aid for use with polymer, bitumen and polythene roll DPC.   Masonry Support - DPC for masonry support systems Preformed Cavitrays compatible for use with masonry support systems and framed structures.   All Closer Products All of Cavity Trays closer products.   Type D - Vertical damp-proof course Insulated vertical DPC for use when closing cavity walls in the original manner.   Type H - Universal cavity closer and damp-proof course Closes cavity wall. Insulates cavity reveal. Satisfies DPC requirements. Introduces positive frame fixing.   Type O - Refurbishment cavity closure DPC Provides vertical damp-proof barrier between leaves of a cavity wall, and between frame jamb and outside leaf.   Quickcloser - DPC with flexible insulating core Closes the cavity wall. Creates an insulated reveal. Acts as a vertical DPC. Permits a variety of frame positions.   Type V - Contract closer Closes cavity walls. Insulates the reveal and acts as a DPC.   Type WCA - Closer for wide cavity applications For closing cavity walls where cavity exceeds 100mm.   Cavi120V - Type V cavicloser Fire integrity rated closer.   Cavi90H - Type H cavicloser Fire integrity rated closer.   Cavi60 WCA - Type WCA cavicloser Fire integrity rated closer.   Cavi240 PWIB - Party wall fire integrity barrier and damp course Fire integrity rated party wall link.   Cavi240 CFIS - Cavicheck fire integrity stops Compressible fire stop to compartmentalise cavity walls.   Cavi60 / Cavi 120 Lofthatch - Loft access door - fire rated Fire integrity rated loft hatch, 1 hour designation.   Envelopment Services - Sleeved noncombustible barriers Non-combustible acoustic insulation barriers in bespoke sleeves and encapsulated surrounds.   All Membranes and Barriers All of Cavity Trays membrane and barrier products.   Type N - Sitesealer membranes for gas and damp-proofing Damp-proofing membrane with methane and radon resistant qualities.   Methane - Barrier for use within cavity walls Preformed barriers for installation in new-build properties at ground floor level.   Radon - Barrier for use within cavity walls Preformed Petheleyne barriers designed to minimise the entry of radon gas into the building.   Inlets and outlets - Outlets for gas and water discharge Discharge routes for trapped gases and trapped rainwater.   Gas Sump - Reception sump To service evacuation of gas from below integrity shield.   All Ventilation Products All of Cavity Trays ventilation products.   Cavibrick - High performance airbrick The Cavibrick is a high performance ventilator which may be used instead of a conventional airbrick.   Cavibrick Sleeves Sleeve attachments to provide ventilation to specific areas.   Cavibrick Rectangular to Round Converter Sleeve Permits cavibrick to be connected to standard pipe.   Sleeve and Duct Cavitrays Preformed trays to protect sleeves and ducts where they pass through a cavity wall.   Type TAV Provides cranked air-duct route from cavibrick to area at different level.   Extension Sleeves To extend Type TAV cranked sleeve to create a greater distance between inlet and outlet level.   Type TAV to Round Converter To permit attachment of circular pipe to bottom outlet of Type TAV telescopic ventilator.   Type CSV - Circular Soffit Ventilator Circular Soffit Ventilators with louvres, for new and existing work. Ventilators promote the entry of air into the roof space.   Type CRSV - Circular Recessed Soffit Ventilator To provide airflow in and out of roof space via the soffit board. Suitable for introduction into existing soffit boards to fulfil airflow requirements. Also suitable for new build applications.   Type CV - corbel ventilator To provide air ventilation at eaves level, where a running masonry corbel is constructed.   Type ECF - eaves comb filler To provide ventilating infill whilst preventing entry of birds under contoured roof finishes.   Type EROV 300/400 - eaves roll-out ventilator Permits entry of air via eaves.   Type ERV - external roof ventilator To provide ventilation within flat and low pitched roofs.   Type FFFV - four-function fascia ventilator Promotes airflow in and out of roof space via fascia top whilst providing eaves comb facility and eaves protection.   Type OEVWF - open eaves ventilator with flyscreen Permits entry of air into the roof space via eaves.   Type OEVWF-25 - open eaves ventilator with flyscreen Permits entry of air into the roof space via the eaves.   Type OFV-10 - over fascia ventilator Alternative entry route for airflow servicing the roof space.   Type OFV-25 - over fascia ventilator Alternative entry route for airflow servicing the roof space.   One-Way (heavy duty) - aspirating roofing underlay for nonventilated pitched roof systems One-Way (Heavy Duty) is an aspirating roofing underlay for nonventilated pitched roof systems.   One-Way (maximum) - aspirating roofing underlay for nonventilated pitched roof systems One-Way (Maximum) is an aspirating roofing underlay for non-ventilated pitched roof systems.   Type PV - panel ventilator Permits air entry into the roof space via the eaves.   Type RASV - reversible angled soffit ventilator Permits entry of air via soffit.   Type RAV-FL - room ventilation packs and gas appliance packs To provide ventilation where flat roofs abut masonry.   Type REV - refurbishment eaves ventilator Preformed eaves ventilator for introduction between rafters in existing roof spaces.   Flush Slate Ventilator To provide ventilation route via slated roof finish.   Contract Slate Ventilator To provide a ventilation route via a slated roof, but with an alternative appearance.   Universal Roof Ventilator - universal high performance roof ventilator for tiled roofs Sloping roof ventilator for use at high or low level.   Type SSV - strip soffit ventilator Permits entry of air via soffit.   Type SSV-RU - strip soffit ventilator with reduced upstand Permits entry of air via soffit.   Type SSV-15 - SSV15 (for pitches below 15°) Permits entry of air via soffit.   Type SV-FL - flat strip soffit ventilator Permits entry of air via soffit.   Type SV-GP - soffit ventilator - general purpose Permits entry of air via soffit.   Type T - eaves ventilator Preformed eaves ventilator permits airflow requirements into roof space.   Three in One - Roof Ventilation Kit Pack providing over fascia ventilation, eaves ventilation and felt support.   Type USV - universal soffit ventilator Preformed strip ventilator for use at soffit level on new and existing structures.   Type VEP - ventilated eaves protector (universal) Provides support of roofing felt and introduces integral eaves ventilation.   Ventilation Packs - room ventilation packs and gas appliance packs Provide ventilation to habitable rooms. Also air ventilation for areas in which boilers are enclosed.   Ventilating Flashing - ventilating flashing To provide flashing and ventilation at roof and wall intersections.   Type W - perp cavivent and caviweep Dual-function product acts as a cavity ventilator permitting the cavity to breathe. Also acts as a weep to evacuate water from lintels, dpc’s and cavity trays.   Type W Extension Duct To extend Type W to accommodate masonry of greater thickness.   Type W Render Cover - for use during rendering Protective front cover to protect grille of Type W during single or two-coat rendering.   Euroweep-vent - alternative perp/weep ventilator An alternative product is now available offering smaller overall dimensions but with high performance categorisation.   All Associated Products All of Cavity Trays associated products.   Type CRSS - Continuous running soaker strip Continuous soaker for use with slate roof where it abuts a masonry wall.   Type ECSC - Eaves continuous slate course Eliminates need to cut slates at the eaves and provides eaves support.   hardedge Strip 1200 - Anti-pooling eaves and felt protector strip Provides robust support and carrier of roofing felt at eaves.   hardedge Strip 1500 - Anti-pooling eaves and felt protector strip Provides robust support and carrier of roofing felt at eaves.   Type I - In-screed services duct Preformed services duct for incorporation within floor screeds. Provides designed accessible routes for service pipes or wiiring.   Joist Gloves To guard against air leakage when traditionally building in timber joists. To protect the ends of rectangular timber joists against dampness.   Type LAD - Loft access door To gain access into a roof space.   Downward Opening Access into attic spaces.   Type RBS - Roof bonding strips for slates and tiles To link and bond two dissimilar roof finishes.   Type VG - Valley gutter Pre-shaped weatherproof and waterproof drainage channel, for use at valley intersections between slates or tiles.   Siliconbond - Silicon caulking compound Caulking compound for pointing purposes where lead flashing is returned into mortar joints.   Cavilink - Masonry attachment profiles Provides fixing method of joining new masonry skin at right angles to existing masonry skin.