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

SKULengthWidthThicknessDSpacingMATLCOLRAL (Advisory only)hf:att:pa_lengthhf:att:pa_widthhf:att:pa_thicknesshf:att:pa_dhf:att:pa_spacinghf:att:pa_materialhf:att:pa_colourhf:att:pa_ral-advisory-only
55010140mm12mm6mm6.4mm2mmPPWhiteRAL 901040mm12mm6mm6-4mm2mmppwhiteral-9010
55010240mm12mm6mm6.4mm2mmPPBrownNo RAL match40mm12mm6mm6-4mm2mmppbrownno-ral-match
55010340mm12mm6mm6.4mm2mmPPBlackRAL 900540mm12mm6mm6-4mm2mmppblackral-9005
55010540mm12mm6mm6.4mm2mmPPGreyRAL 704740mm12mm6mm6-4mm2mmppgreyral-7047
55010640mm12mm6mm6.4mm2mmPPBrownRAL 801740mm12mm6mm6-4mm2mmppbrownral-8017
55011240mm12mm6mm6.4mm2mmPPCreamRAL 101540mm12mm6mm6-4mm2mmppcreamral-1015
55011340mm12mm6mm6.4mm2mmPPWhiteNo RAL match40mm12mm6mm6-4mm2mmppwhiteno-ral-match
55011440mm12mm6mm6.4mm2mmPPGreyRAL 703740mm12mm6mm6-4mm2mmppgreyral-7037
55011540mm12mm6mm6.4mm2mmPA6WhiteRAL 901640mm12mm6mm6-4mm2mmpa6whiteral-9016
55011740mm12mm6mm6.4mm2mmPPOak BrownRAL 800140mm12mm6mm6-4mm2mmppoak-brownral-8001
55011940mm12mm6mm6.4mm2mmPPAsh GreyRAL 704540mm12mm6mm6-4mm2mmppash-greyral-7045
55012040mm12mm6mm6.4mmPPMarine Blue40mm12mm6mm6-4mmppmarine-blue
55012240mm12mm6mm6.4mm2mmPPWhiteRAL 901640mm12mm6mm6-4mm2mmppwhiteral-9016
55012340mm12mm6mm6.4mm2mmPPBrownRAL 801440mm12mm6mm6-4mm2mmppbrownral-8014
55012440mm12mm6mm6.4mm2mmPPGreyRAL 703740mm12mm6mm6-4mm2mmppgreyral-7037
55012540mm12mm6mm6.4mm2mmPPRedRAL 301140mm12mm6mm6-4mm2mmppredral-3011
55012640mm12mm6mm6.4mm2mmPPGreenRAL 600940mm12mm6mm6-4mm2mmppgreenral-6009
55012740mm12mm6mm6.4mm2mmPPBlueNo RAL match40mm12mm6mm6-4mm2mmppblueno-ral-match
55012840mm12mm6mm6.4mm2mmPPDark GreyNo RAL match40mm12mm6mm6-4mm2mmppdark-greyno-ral-match
55012940mm12mm6mm6.4mm2mmPPSilverRAL 900640mm12mm6mm6-4mm2mmppsilverral-9006
55013040mm12mm6mm6.4mm2mmPPCreamRAL 101540mm12mm6mm6-4mm2mmppcreamral-1015
55013140mm12mm6mm6.4mm2mmPPGreyRAL 701540mm12mm6mm6-4mm2mmppgreyral-7015
55013340mm12mm6mm6.4mm2mmPPBasalt GreyRAL 701240mm12mm6mm6-4mm2mmppbasalt-greyral-7012
55013440mm12mm6mm6.4mm2mmPPGreyRAL 702440mm12mm6mm6-4mm2mmppgreyral-7024
55013540mm12mm6mm6.4mm2mmPPCaramelRAL 800340mm12mm6mm6-4mm2mmppcaramelral-8003
55013640mm12mm6mm6.4mm2mmPPAnthracite GreyRAL 701640mm12mm6mm6-4mm2mmppanthracite-greyral-7016
55013740mm12mm6mm6.4mm2mmPPVanillaRAL 900140mm12mm6mm6-4mm2mmppvanillaral-9001
55013840mm12mm6mm6.4mm2mmPPGreyRAL 700140mm12mm6mm6-4mm2mmppgreyral-7001
55013940mm12mm6mm6.4mm2mmPPChartwell GreenNo RAL match40mm12mm6mm6-4mm2mmppchartwell-greenno-ral-match
55014040mm12mm6mm6.4mm2mmPPAgate GreyRAL 703840mm12mm6mm6-4mm2mmppagate-greyral-7038
55014140mm12mm6mm6.4mm2mmPPGrey Cedar (Anteak)No RAL match40mm12mm6mm6-4mm2mmppgrey-cedar-anteakno-ral-match
55014240mm12mm6mm6.4mm2mmPPNatural OakRAL 101140mm12mm6mm6-4mm2mmppnatural-oakral-1011
55014340mm12mm6mm6.4mm2mmPPGrey BeigeRAL 101940mm12mm6mm6-4mm2mmppgrey-beigeral-1019
55014440mm12mm6mm6.4mm2mmPPGreyRAL 703540mm12mm6mm6-4mm2mmppgreyral-7035
55014540mm12mm6mm6.4mm2mmPPGreyRAL 704740mm12mm6mm6-4mm2mmppgreyral-7047
55015040mm12mm6mm6.4mm2mmPPSteel BlueRAL 501140mm12mm6mm6-4mm2mmppsteel-blueral-5011
55015440mm12mm6mm6.4mm2mmPPOlive GreyRAL 700240mm12mm6mm6-4mm2mmppolive-greyral-7002
55500040mm12mm6mm6.4mm2mmASAWhiteNo RAL match40mm12mm6mm6-4mm2mmasawhiteno-ral-match
55502140mm12mm6mm6.4mm2mmASADark GreenNo RAL match40mm12mm6mm6-4mm2mmasadark-greenno-ral-match
55502340mm12mm6mm6.4mm2mmASADark RedNo RAL match40mm12mm6mm6-4mm2mmasadark-redno-ral-match
55502440mm12mm6mm6.4mm2mmASAWine RedRAL 300540mm12mm6mm6-4mm2mmasawine-redral-3005
55502540mm12mm6mm6.4mm2mmASAGreyRAL 700140mm12mm6mm6-4mm2mmasagreyral-7001
55502640mm12mm6mm6.4mm2mmASACreamRAL 101540mm12mm6mm6-4mm2mmasacreamral-1015
55502740mm12mm6mm6.4mm2mmASAAgate GreyRAL 703840mm12mm6mm6-4mm2mmasaagate-greyral-7038
55502840mm12mm6mm6.4mm2mmASAPebble GreyRAL 703240mm12mm6mm6-4mm2mmasapebble-greyral-7032
55502940mm12mm6mm6.4mm2mmASAPure WhiteRAL 901040mm12mm6mm6-4mm2mmasapure-whiteral-9010
55503040mm12mm6mm6.4mm2mmASABrilliant WhiteNo RAL match40mm12mm6mm6-4mm2mmasabrilliant-whiteno-ral-match
55503140mm12mm6mm6.4mm2mmASACream WhiteNo RAL match40mm12mm6mm6-4mm2mmasacream-whiteno-ral-match
55503240mm12mm6mm6.4mm2mmASAWindsorNo RAL match40mm12mm6mm6-4mm2mmasawindsorno-ral-match
55503340mm12mm6mm6.4mm2mmASABalmoralRAL 703940mm12mm6mm6-4mm2mmasabalmoralral-7039
55503540mm12mm6mm6.4mm2mmASABrownRAL 802240mm12mm6mm6-4mm2mmasabrownral-8022
55503940mm12mm6mm6.4mm2mmASAAnthracite GreyRAL 701640mm12mm6mm6-4mm2mmasaanthracite-greyral-7016
55504040mm12mm6mm6.4mm2mmASAPlain Irish OakRAL 101140mm12mm6mm6-4mm2mmasaplain-irish-oakral-1011
55504240mm12mm6mm6.4mm2mmASABasalt GreyRAL 701240mm12mm6mm6-4mm2mmasabasalt-greyral-7012
55504340mm12mm6mm6.4mm2mmASAAgate GreyRAL 703840mm12mm6mm6-4mm2mmasaagate-greyral-7038
55504540mm12mm6mm6.4mm2mmASAMoss GreenRAL 600540mm12mm6mm6-4mm2mmasamoss-greenral-6005
55504640mm12mm6mm6.4mm2mmASAQuartz GreyRAL 703940mm12mm6mm6-4mm2mmasaquartz-greyral-7039
55504740mm12mm6mm6.4mm2mmASALight GreyRAL 703540mm12mm6mm6-4mm2mmasalight-greyral-7035

Drain Hole Covers – 38mm oblong

Product selector – choose your application dimensions

SKULengthWidthThicknessDSpacingMATLCOLRAL (Advisory only)hf:att:pa_lengthhf:att:pa_widthhf:att:pa_thicknesshf:att:pa_dhf:att:pa_spacinghf:att:pa_materialhf:att:pa_colourhf:att:pa_ral-advisory-only
55030138mm12mm6mm6.5mm4mmPPWhiteRAL 901038mm12mm6mm6-5mm4mmppwhiteral-9010
55030238mm12mm6mm6.5mm4mmPPBrownNo RAL match38mm12mm6mm6-5mm4mmppbrownno-ral-match
55030338mm12mm6mm6.5mm4mmPPBlackRAL 900538mm12mm6mm6-5mm4mmppblackral-9005
55030438mm12mm6mm6.5mm4mmPPWhiteNo RAL match38mm12mm6mm6-5mm4mmppwhiteno-ral-match
55030538mm12mm6mm6.5mm4mmPPGreyRAL 704738mm12mm6mm6-5mm4mmppgreyral-7047
55030638mm12mm6mm6.5mm4mmPA6GoldNo RAL match38mm12mm6mm6-5mm4mmpa6goldno-ral-match
55030738mm12mm6mm6.5mm4mmPPBeigeNo RAL match38mm12mm6mm6-5mm4mmppbeigeno-ral-match
55030838mm12mm6mm6.5mm4mmPPSilverNo RAL match38mm12mm6mm6-5mm4mmppsilverno-ral-match
55030938mm12mm6mm6.5mm4mmPPWhiteRAL 900338mm12mm6mm6-5mm4mmppwhiteral-9003
55031038mm12mm6mm6.5mm4mmPPSpec GreyNo RAL match38mm12mm6mm6-5mm4mmppspec-greyno-ral-match
55031138mm12mm6mm6.5mm4mmPA6WhiteNo RAL match38mm12mm6mm6-5mm4mmpa6whiteno-ral-match
55031238mm12mm6mm6.5mm4mmPA6BrownNo RAL match38mm12mm6mm6-5mm4mmpa6brownno-ral-match
55031338mm12mm6mm6.5mm4mmPPRedNo RAL match38mm12mm6mm6-5mm4mmppredno-ral-match
55031438mm12mm6mm6.5mm4mmPPAsh GreyRAL 704538mm12mm6mm6-5mm4mmppash-greyral-7045
55031738mm12mm6mm6.5mm4mmPPOak BrownRAL 800138mm12mm6mm6-5mm4mmppoak-brownral-8001
55031838mm12mm6mm6.5mm4mmPPGreyRAL 701638mm12mm6mm6-5mm4mmppgreyral-7016
55031938mm12mm6mm6.5mm4mmPPChartwell GreenNo RAL match38mm12mm6mm6-5mm4mmppchartwell-greenno-ral-match

Drain Hole Covers – European

Product selector – choose your application dimensions

SKULengthWidthThicknessDSpacingMATLCOLRAL (Advisory only)hf:att:pa_lengthhf:att:pa_widthhf:att:pa_thicknesshf:att:pa_dhf:att:pa_spacinghf:att:pa_materialhf:att:pa_colourhf:att:pa_ral-advisory-only
55050144.5mm14.3mm7.3mm8mm3mm - 4mmPPWhiteRAL 901044-5mm14-3mm7-3mm8mm3mm-4mmppwhiteral-9010
55050244.5mm14.3mm7.3mm8mm3mm - 4mmPPBrownNo RAL match44-5mm14-3mm7-3mm8mm3mm-4mmppbrownno-ral-match
55050344.5mm14.3mm7.3mm8mm3mm - 4mmPPBlackRAL 900544-5mm14-3mm7-3mm8mm3mm-4mmppblackral-9005
55050444.5mm14.3mm7.3mm8mm3mm - 4mmPPOak BrownRAL 800144-5mm14-3mm7-3mm8mm3mm-4mmppoak-brownral-8001
55050544.5mm14.3mm7.3mm8mm3mm - 4mmPPGreyRAL 704744-5mm14-3mm7-3mm8mm3mm-4mmppgreyral-7047
55050644.5mm14.3mm7.3mm8mm3mm - 4mmPPMid GreyRAL 703744-5mm14-3mm7-3mm8mm3mm-4mmppmid-greyral-7037
55051244.5mm14.3mm7.3mm8mm3mm - 4mmPPGreyRAL 701544-5mm14-3mm7-3mm8mm3mm-4mmppgreyral-7015
55051644.5mm14.3mm7.3mm8mm3mm - 4mmPPGreyRAL 701644-5mm14-3mm7-3mm8mm3mm-4mmppgreyral-7016
55051744.5mm14.3mm7.3mm8mm3mm - 4mmPPVanillaRAL 900144-5mm14-3mm7-3mm8mm3mm-4mmppvanillaral-9001
55051844.5mm14.3mm7.3mm8mm3mm - 4mmPPNatural OakRAL 101144-5mm14-3mm7-3mm8mm3mm-4mmppnatural-oakral-1011

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

Drain Hole Covers – Round

Product selector – choose your application dimensions

SKULengthWidthThicknessDSpacingMATLCOLRAL (Advisory only)hf:att:pa_lengthhf:att:pa_widthhf:att:pa_thicknesshf:att:pa_dhf:att:pa_spacinghf:att:pa_materialhf:att:pa_colourhf:att:pa_ral-advisory-only
55070114mm14mm6mm6mm7mmPA6WhiteRAL 901014mm14mm6mm6mm7mmpa6whiteral-9010
55070214mm14mm6mm6mm7mmPA6BrownRAL 802214mm14mm6mm6mm7mmpa6brownral-8022
55070314mm14mm6mm6mm7mmPA6BlackRAL 900514mm14mm6mm6mm7mmpa6blackral-9005
55070414mm14mm6mm6mm7mmPA6BrownNo RAL match14mm14mm6mm6mm7mmpa6brownno-ral-match
55070514mm14mm6mm6mm7mmPA6GreyRAL 701514mm14mm6mm6mm7mmpa6greyral-7015
55070614mm14mm6mm6mm7mmPA6CreamRAL 101514mm14mm6mm6mm7mmpa6creamral-1015
55070714mm14mm6mm6mm7mmPA6VanillaRAL 900114mm14mm6mm6mm7mmpa6vanillaral-9001
55071514mm14mm6mm6mm7mmPA6GreyNo RAL match14mm14mm6mm6mm7mmpa6greyno-ral-match
55071614mm14mm6mm6mm7mmPA6TanNo RAL match14mm14mm6mm6mm7mmpa6tanno-ral-match
55071714mm14mm6mm6mm7mmPA6GreyRAL 701614mm14mm6mm6mm7mmpa6greyral-7016

Drain Hole Covers – K

Product selector – choose your application dimensions

SKULengthWidthThicknessDSpacingMATLCOLRAL (Advisory only)hf:att:pa_lengthhf:att:pa_widthhf:att:pa_thicknesshf:att:pa_dhf:att:pa_spacinghf:att:pa_materialhf:att:pa_colourhf:att:pa_ral-advisory-only
55060136mm19mm6mm5mm1.5mmABSWhiteNo RAL match36mm19mm6mm5mm1-5mmabswhiteno-ral-match
55060236mm19mm6mm5mm1.5mmABSBrownRAL 802236mm19mm6mm5mm1-5mmabsbrownral-8022
55060336mm19mm6mm5mm1.5mmABSBlackRAL 900536mm19mm6mm5mm1-5mmabsblackral-9005
55060436mm19mm6mm5mm1.5mmABSGreyRAL 703736mm19mm6mm5mm1-5mmabsgreyral-7037
55060636mm19mm6mm5mm1.5mmABSGreenRAL 600536mm19mm6mm5mm1-5mmabsgreenral-6005
55060736mm19mm6mm5mm1.5mmABSBlueRAL 501136mm19mm6mm5mm1-5mmabsblueral-5011
55060836mm19mm6mm5mm1.5mmABSRedRAL 301136mm19mm6mm5mm1-5mmabsredral-3011

Drain Hole Covers – Z

Product selector – choose your application dimensions

SKULengthWidthThicknessDSpacingMATLCOLRAL (Advisory only)hf:att:pa_lengthhf:att:pa_widthhf:att:pa_thicknesshf:att:pa_dhf:att:pa_spacinghf:att:pa_materialhf:att:pa_colourhf:att:pa_ral-advisory-only
55080149.5mm14.3mm7.3mm8mm3mm - 4mmPPWhiteRAL 901049-5mm14-3mm7-3mm8mm3mm-4mmppwhiteral-9010
55080249.5mm14.3mm7.3mm8mm3mm - 4mmPPBrownNo RAL match49-5mm14-3mm7-3mm8mm3mm-4mmppbrownno-ral-match
55080349.5mm14.3mm7.3mm8mm3mm - 4mmPPBlackRAL 900549-5mm14-3mm7-3mm8mm3mm-4mmppblackral-9005
55080449.5mm14.3mm7.3mm8mm3mm - 4mmPPGreyRAL 701249-5mm14-3mm7-3mm8mm3mm-4mmppgreyral-7012
55080549.5mm14.3mm7.3mm8mm3mm - 4mmPPSilverRAL 900649-5mm14-3mm7-3mm8mm3mm-4mmppsilverral-9006
55080649.5mm14.3mm7.3mm8mm3mm - 4mmPPBronzeRAL 602249-5mm14-3mm7-3mm8mm3mm-4mmppbronzeral-6022

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