Drain Hole Covers

Glazpart drain hole covers now come in a range of moulded colours to meet referenced RAL, BS or foil reference numbers. This means a significant reduction in the need for the paint spraying of drain hole covers to match profile colours.

Where a moulded colour is not available from stock, our paint spraying service can colour match and supply finished, sprayed drain hole covers within your quoted lead time.

Drainage

Most double glazing frames are designed with an inbuilt drainage system, comprising of slots within the profiles that allow any water ingress to flow to the outside. To ensure an efficient system these slots must remain unblocked. Therefore, periodically, dirt should be removed, drain holes cleared and drainage operation checked by flushing through with water.

Drain hole covers are required for drained or drained and ventilated window systems. These window systems are designed to minimise the amount of water that enter the rebate. The drainage system of the frame ensures the removal of water from the rebate platform.

In timber windows this is achieved by incorporating a sloping platform, a slope of 1 in 10 (6°) is recommended. For aluminium or PVC-u frames, gutters with holes may be used A typical system will include drainage holes at least 8mm in diameter, or slots at least 25mm x 5mm to ensure water escapes. (see GGF Figure 5 for examples).

Ventilation

It is difficult to ensure the removal of all water from the glazing rebates by drainage alone. Water may be trapped, or may be held by surface tension, either as droplets or between opposing surfaces, even though the design should prevent this happening.

Ventilation may be necessary to dry out these areas. This is particularly true of frames with horizontal platforms, or where moisture may collect on the top edge of an IGU. The degree of ventilation achieved is not only dependent upon the size of the ventilation holes or slots, but also upon their position and accessibility to prevailing winds. Slots of 20mm x 3mm can be adequate for ventilation in exposed parts of the window, but further ventilation is probably necessary in more protected parts. To prevent winddriven water being carried into the frame section, all exposed holes and slots should be protected, either by fitting drain hole covers, or by forming the slots in a position in the frame where they are not subject to direct wind and weather.

Drain Hole Covers – 40mm oblong

Product selector – choose your application dimensions

SKULengthWidthThicknessDSpacingMATLCOLhf:att:pa_lengthhf:att:pa_widthhf:att:pa_thicknesshf:att:pa_dhf:att:pa_spacinghf:att:pa_materialhf:att:pa_colour
55010140mm12mm6mm6.4mmPPWhite40mm12mm6mm6-4mmppwhite
55010240mm12mm6mm6.4mmPPBrown40mm12mm6mm6-4mmppbrown
55010340mm12mm6mm6.4mmPPBlack40mm12mm6mm6-4mmppblack
55010540mm12mm6mm6.4mmPPGrey40mm12mm6mm6-4mmppgrey
55010640mm12mm6mm6.4mmPPBrown40mm12mm6mm6-4mmppbrown
55011240mm12mm6mm6.4mmPPCream40mm12mm6mm6-4mmppcream
55011340mm12mm6mm6.4mmPPWhite40mm12mm6mm6-4mmppwhite
55011440mm12mm6mm6.4mmPPGrey40mm12mm6mm6-4mmppgrey
55011540mm12mm6mm6.4mmPA6White40mm12mm6mm6-4mmpa6white
55011940mm12mm6mm6.4mmPPAsh Grey40mm12mm6mm6-4mmppash-grey
55012040mm12mm6mm6.4mmPPMarine Blue40mm12mm6mm6-4mmppmarine-blue
55012240mm12mm6mm6.4mmPPWhite40mm12mm6mm6-4mmppwhite
55012340mm12mm6mm6.4mmPPBrown40mm12mm6mm6-4mmppbrown
55012440mm12mm6mm6.4mmPPGrey40mm12mm6mm6-4mmppgrey
55012540mm12mm6mm6.4mmPPRed40mm12mm6mm6-4mmppred
55012640mm12mm6mm6.4mmPPGreen40mm12mm6mm6-4mmppgreen
55012740mm12mm6mm6.4mmPPBlue40mm12mm6mm6-4mmppblue
55012840mm12mm6mm6.4mmPPDark Grey40mm12mm6mm6-4mmppdark-grey
55012940mm12mm6mm6.4mmPPSilver40mm12mm6mm6-4mmppsilver
55013040mm12mm6mm6.4mmPPCream40mm12mm6mm6-4mmppcream
55013140mm12mm6mm6.4mmPPGrey RAL 701540mm12mm6mm6-4mmppgrey-ral-7015
55013340mm12mm6mm6.4mmPPBasalt Grey40mm12mm6mm6-4mmppbasalt-grey
55013440mm12mm6mm6.4mmPPGrey40mm12mm6mm6-4mmppgrey
55013540mm12mm6mm6.4mmPPCaramel40mm12mm6mm6-4mmppcaramel
55013640mm12mm6mm6.4mmPPGrey RAL 701640mm12mm6mm6-4mmppgrey-ral-7016
55013740mm12mm6mm6.4mmPPVanilla RAL 900140mm12mm6mm6-4mmppvanilla-ral-9001
55013840mm12mm6mm6.4mmPPGrey RAL 700140mm12mm6mm6-4mmppgrey-ral-7001
55013940mm12mm6mm6.4mmPPChartwell Green40mm12mm6mm6-4mmppchartwell-green
55014040mm12mm6mm6.4mmPPAgate Grey40mm12mm6mm6-4mmppagate-grey
55014140mm12mm6mm6.4mmPPGrey Cedar (Anteak)40mm12mm6mm6-4mmppgrey-cedar-anteak
55014240mm12mm6mm6.4mmPPNatural Oak RAL 101140mm12mm6mm6-4mmppnatural-oak-ral-1011
55014340mm12mm6mm6.4mmPPGrey Beige RAL 101940mm12mm6mm6-4mmppgrey-beige-ral-1019
55014440mm12mm6mm6.4mmPPGrey RAL 703540mm12mm6mm6-4mmppgrey-ral-7035
55014540mm12mm6mm6.4mmPPGrey RAL 704740mm12mm6mm6-4mmppgrey-ral-7047
55015040mm12mm6mm6.4mmPPSteel Blue40mm12mm6mm6-4mmppsteel-blue
55015440mm12mm6mm6.4mmPPOlive Grey40mm12mm6mm6-4mmppolive-grey

Drain Hole Covers – 40mm oblong

Product selector – choose your application dimensions

SKULengthWidthThicknessDSpacingMATLCOLhf:att:pa_lengthhf:att:pa_widthhf:att:pa_thicknesshf:att:pa_dhf:att:pa_spacinghf:att:pa_materialhf:att:pa_colour
55500040mm12mm6mm6.4mmASAWhite40mm12mm6mm6-4mmasawhite
55502140mm12mm6mm6.4mmASADark Green40mm12mm6mm6-4mmasadark-green
55502340mm12mm6mm6.4mmASADark Red40mm12mm6mm6-4mmasadark-red
55502440mm12mm6mm6.4mmASAWine Red40mm12mm6mm6-4mmasawine-red
55502540mm12mm6mm6.4mmASAGrey RAL 700140mm12mm6mm6-4mmasagrey-ral-7001
55502640mm12mm6mm6.4mmASACream RAL 101540mm12mm6mm6-4mmasacream-ral-1015
55502740mm12mm6mm6.4mmASAAgate Grey RAL 703840mm12mm6mm6-4mmasaagate-grey-ral-7038
55502840mm12mm6mm6.4mmASAPebble Grey RAL 703240mm12mm6mm6-4mmasapebble-grey-ral-7032
55502940mm12mm6mm6.4mmASAPure White RAL 901040mm12mm6mm6-4mmasapure-white-ral-9010
55503040mm12mm6mm6.4mmASABrilliant White40mm12mm6mm6-4mmasabrilliant-white
55503140mm12mm6mm6.4mmASACream White40mm12mm6mm6-4mmasacream-white
55503240mm12mm6mm6.4mmASAWindsor40mm12mm6mm6-4mmasawindsor
55503340mm12mm6mm6.4mmASABalmoral40mm12mm6mm6-4mmasabalmoral
55503540mm12mm6mm6.4mmASABrown40mm12mm6mm6-4mmasabrown
55503940mm12mm6mm6.4mmASAAnthracite Grey RAL 701640mm12mm6mm6-4mmasaanthracite-grey-ral-7016
55504040mm12mm6mm6.4mmASAPlain Irish Oak40mm12mm6mm6-4mmasaplain-irish-oak
55504240mm12mm6mm6.4mmASABasalt Grey40mm12mm6mm6-4mmasabasalt-grey
55504340mm12mm6mm6.4mmASAAgate Grey40mm12mm6mm6-4mmasaagate-grey
55504540mm12mm6mm6.4mmASAMoss Green40mm12mm6mm6-4mmasamoss-green
55504640mm12mm6mm6.4mmASAQuartz Grey RAL 703940mm12mm6mm6-4mmasaquartz-grey-ral-7039
55504740mm12mm6mm6.4mmASALight Grey RAL 703540mm12mm6mm6-4mmasalight-grey-ral-7035

Drain Hole Covers – 38mm oblong

Product selector – choose your application dimensions

SKULengthWidthThicknessDSpacingMATLCOLhf:att:pa_lengthhf:att:pa_widthhf:att:pa_thicknesshf:att:pa_dhf:att:pa_spacinghf:att:pa_materialhf:att:pa_colour
55030138mm12mm6mm6.5mmPPWhite38mm12mm6mm6-5mmppwhite
55030238mm12mm6mm6.5mmPPBrown38mm12mm6mm6-5mmppbrown
55030338mm12mm6mm6.5mmPPBlack38mm12mm6mm6-5mmppblack
55030438mm12mm6mm6.5mmPPWhite38mm12mm6mm6-5mmppwhite
55030538mm12mm6mm6.5mmPPGrey RAL 704738mm12mm6mm6-5mmppgrey-ral-7047
55030638mm12mm6mm6.5mmPA6Gold38mm12mm6mm6-5mmpa6gold
55030738mm12mm6mm6.5mmPPBeige38mm12mm6mm6-5mmppbeige
55030838mm12mm6mm6.5mmPPSilver38mm12mm6mm6-5mmppsilver
55030938mm12mm6mm6.5mmPPWhite38mm12mm6mm6-5mmppwhite
55031038mm12mm6mm6.5mmPPSpec Grey38mm12mm6mm6-5mmppspec-grey
55031138mm12mm6mm6.5mmPA6White38mm12mm6mm6-5mmpa6white
55031238mm12mm6mm6.5mmPA6Brown38mm12mm6mm6-5mmpa6brown
55031338mm12mm6mm6.5mmPPRed38mm12mm6mm6-5mmppred
55031438mm12mm6mm6.5mmPPAsh Grey38mm12mm6mm6-5mmppash-grey
55031738mm12mm6mm6.5mmPPOak Brown38mm12mm6mm6-5mmppoak-brown
55031838mm12mm6mm6.5mmPPGrey RAL 701638mm12mm6mm6-5mmppgrey-ral-7016
55031938mm12mm6mm6.5mmPPChartwell Green38mm12mm6mm6-5mmppchartwell-green

Drain Hole Covers – European

Product selector – choose your application dimensions

SKULengthWidthThicknessDSpacingMATLCOLhf:att:pa_lengthhf:att:pa_widthhf:att:pa_thicknesshf:att:pa_dhf:att:pa_spacinghf:att:pa_materialhf:att:pa_colour
55050144.5mm14.3mm7.3mm8mmPPWhite44-5mm14-3mm7-3mm8mmppwhite
55050244.5mm14.3mm7.3mm8mmPPBrown44-5mm14-3mm7-3mm8mmppbrown
55050344.5mm14.3mm7.3mm8mmPPBlack44-5mm14-3mm7-3mm8mmppblack
55050444.5mm14.3mm7.3mm8mmPPOak Brown44-5mm14-3mm7-3mm8mmppoak-brown
55050544.5mm14.3mm7.3mm8mmPPGrey RAL 704744-5mm14-3mm7-3mm8mmppgrey-ral-7047
55050644.5mm14.3mm7.3mm8mmPPMid Grey44-5mm14-3mm7-3mm8mmppmid-grey
55051244.5mm14.3mm7.3mm8mmPPGrey RAL 701544-5mm14-3mm7-3mm8mmppgrey-ral-7015
55051644.5mm14.3mm7.3mm8mmPPGrey RAL 701644-5mm14-3mm7-3mm8mmppgrey-ral-7016
55051744.5mm14.3mm7.3mm8mmPPVanilla RAL 900144-5mm14-3mm7-3mm8mmppvanilla-ral-9001
55051844.5mm14.3mm7.3mm8mmPPNatural Oak44-5mm14-3mm7-3mm8mmppnatural-oak

Other premium finishes are available. Ask your account manager for details.

Drain Hole Covers – Round

Product selector – choose your application dimensions

SKULengthWidthThicknessDSpacingMATLCOLhf:att:pa_lengthhf:att:pa_widthhf:att:pa_thicknesshf:att:pa_dhf:att:pa_spacinghf:att:pa_materialhf:att:pa_colour
55070114mm14mm6mm6mmPA6White14mm14mm6mm6mmpa6white
55070214mm14mm6mm6mmPA6Brown14mm14mm6mm6mmpa6brown
55070314mm14mm6mm6mmPA6Black14mm14mm6mm6mmpa6black
55070414mm14mm6mm6mmPA6Brown14mm14mm6mm6mmpa6brown
55070514mm14mm6mm6mmPA6Grey RAL 701514mm14mm6mm6mmpa6grey-ral-7015
55070614mm14mm6mm6mmPA6Cream14mm14mm6mm6mmpa6cream
55070714mm14mm6mm6mmPA6Vanilla RAL 900114mm14mm6mm6mmpa6vanilla-ral-9001
55071514mm14mm6mm6mmPA6Grey14mm14mm6mm6mmpa6grey
55071614mm14mm6mm6mmPA6Tan14mm14mm6mm6mmpa6tan
55071714mm14mm6mm6mmPA6Grey RAL 701614mm14mm6mm6mmpa6grey-ral-7016

Drain Hole Covers – K

Product selector – choose your application dimensions

SKULengthWidthThicknessDSpacingMATLCOLhf:att:pa_lengthhf:att:pa_widthhf:att:pa_thicknesshf:att:pa_dhf:att:pa_spacinghf:att:pa_materialhf:att:pa_colour
55060136mm19mm6mm5mmABSWhite36mm19mm6mm5mmabswhite
55060236mm19mm6mm5mmABSBrown36mm19mm6mm5mmabsbrown
55060336mm19mm6mm5mmABSBlack36mm19mm6mm5mmabsblack
55060436mm19mm6mm5mmABSGrey36mm19mm6mm5mmabsgrey
55060636mm19mm6mm5mmABSGreen RAL 600536mm19mm6mm5mmabsgreen-ral-6005
55060736mm19mm6mm5mmABSBlue RAL 501136mm19mm6mm5mmabsblue-ral-5011
55060836mm19mm6mm5mmABSRed RAL 301136mm19mm6mm5mmabsred-ral-3011

Drain Hole Covers – Z

Product selector – choose your application dimensions

SKULengthWidthThicknessDSpacingMATLCOLhf:att:pa_lengthhf:att:pa_widthhf:att:pa_thicknesshf:att:pa_dhf:att:pa_spacinghf:att:pa_materialhf:att:pa_colour
55080149.5mm14.3mm7.3mm8mmPPWhite49-5mm14-3mm7-3mm8mmppwhite
55080249.5mm14.3mm7.3mm8mmPPBrown49-5mm14-3mm7-3mm8mmppbrown
55080349.5mm14.3mm7.3mm8mmPPBlack49-5mm14-3mm7-3mm8mmppblack
55080449.5mm14.3mm7.3mm8mmPPGrey RAL 701249-5mm14-3mm7-3mm8mmppgrey-ral-7012
55080549.5mm14.3mm7.3mm8mmPPSilver49-5mm14-3mm7-3mm8mmppsilver
55080649.5mm14.3mm7.3mm8mmPPBronze49-5mm14-3mm7-3mm8mmppbronze

Typical test, application and location of drain hole covers

Drain hole slot details

Code: 5506

Code: 5503

Code: 5550

Code: 5505

Code: 5508

Code: 5507

Code: 5507

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Glazpart Ltd
Wildmere Ind Est
Banbury
Oxfordshire
OX16 3JU