Conservation Box Sash Window

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Box sash window which uses cords, weights and pulleys to counter balance the sashes in the traditional way with the weights housed in a ‘box’ created by the internal and external liners over sailing the frame on each side.

Typically, the windows would be set back in a ‘rebated reveal’ construction so that the box is mostly hidden by the external brick or stone, although it can also be seen positioned close to the face of the brickwork with the box on show and dressed with an architrave.

The windows are equipped with the patented click fit staff and parting bead which allows the sliding sashes to be easily removed for future maintenance and decoration.

Platform Compatible Version Certified to
IFC IFC 2X3 2 1.3
Revit Revit 2015 + 2 1.3

  • Properties and values
  • More information
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  • What's Changed?

Properties and values

COBie
NBS_General
NBS_Data
Accessories
Child restrictors, Sash horns, Sash pulls, sash catches. Sash lifts, barrel locks
AntiligatureStandard
n/a
BritishFenestrationRatingCouncilWindowEnergyRating
A
ConfigurationOptions
Sliding Sash only
FireEgress
n/a
FireResistance
n/a
FixingFeatures
Glavanized steel straps by others
FrameAppearanceClass
Siberian larch,(Standard) Class 3 Moderatly Durable, European Oak class 2, durable Red Grandis Class 3 Moderatly Durable
FrameChainOfCustody
FSC
FrameColourOptions
Signal White - RAL 9003 (standard), RAL colours, Stain colours
FrameDepthOptions
110 mm only
FrameFinishOptions
Micro-porous water based paint (three coats, standard), Stain (three coats)
FrameFrameHorns
Contact Mumford & wood for options
FrameGlazingBarOptions
18 mm fine lambs tongue, 18 mm ovolo, 18 mm square, 22 mm lambs tongue, 22 mm ovolo, 22 mm square (standard), 28 mm ovolo
FrameProfileOptions
Fine lambs tongue, Lambs tongue, Ovolo, Square (standard)
FrameSizeOptions
110mm head & jambs. 56mm cill without extension. 68mm & 90mm cill
FrameToGlazingRatioMaximum
0.8
FrameVentilatorOptions
None, Concealed vent, Internal vent and external canopy - brown, Internal vent and external canopy - white (standard)
FrameWoodSpeciesOptions
Engineered Accoya, Engineered European Oak, Engineered Hardwood Red Grandis, Engineered Sapele, Engineered Siberian Larch and Engineered Accoya (standard)
GlazingOrInfillBeading
Internal cassette beading
GlazingOrInfillClipsOrTape
Tremco SGT super foam double sided glazing tape and siliconed external bottom. Special security glazing clips
GlazingOrInfillCompositionOptions
Acoustic glass (available with 24 mm unit only), Laminated glass (not available with 12 mm unit), Obscure glass, Toughened glass with Planitherm One, Toughened glass with Planitherm Total+ (available with 24 mm unit only)
GlazingOrInfillDrainedAndVentedRebate
Drained and vented through rebate joint and bottom rails
GlazingOrInfillSpacerColourOptions
Black, White
GlazingOrInfillTypeOptions
12 mm double glazed unit, 14 mm double glazed unit, 16mm double glazed unit,24 mm double glazed unit
GlazingThicknessOptions
GlassThickness1: 4mm or 6mm. Other options on request, GlassThickness2: Toughened glass 4mm or 6mm, laminated glass 6.4mm, 6.8mm or 8.8mm Other option on request
HandleColourOptions
n/a
HandleTypeOptions
n/a
HardwareAdditionalHardware
Child restrictors, Sash horns, Sash pulls, sash catches. Sash lifts, barrel locks
HardwareColourOptions
Antique brass, Brass (standard), Oil rubbed bronze, Polished chrome, Satin chrome, Satin nickel
HardwareHingeColourOptions
n/a
HardwareHingeTypeOptions
n/a
HardwareSashes
Sash catch, sash lifts, pre stretched nylon cords with sash weights and heavy duty pulley wheels. Sash pulls, Barrel locks
HardwareSecuringDevices
Double security lock with secure open position
LoadBearingCapacityOfSafetyDevices
tested to EN13049:2003 to class 3
OpeningOptions
sliding vertical only
OperationElectricalSupply
n/a
OperationType
Manual
PreservativeTreatmentToWoodComponents
timbers used do not required treatment
SashCatchOptions
Brighton catch, Hook catch,
SecurityRatingOptions
n/a
SillOptions
68 mm flush sill (standard), 68 mm flush sill and 35 mm projecting sill, 68 mm flush sill and 60 mm projecting sill, 68 mm flush sill and 85 mm projecting sill, 68 mm flush sill and 110 mm projecting sill, 90mm sill with all the same options
StyleOptions
Large pane classic Georgian, Non-bar, Small pane country Georgian, Special order
ThirdPartyAccreditation
Acoustic option 36db,
VentColourExternalOptions
Signal White - RAL 9003 (standard), RAL colours, Stain colours
VentColourInternalOptions
Signal White - RAL 9003 (standard), RAL colours, Stain colours
VentFinishExternalOptions
Micro-porous water based paint (three coats, standard), Stain (three coats)
VentFinishInternalOptions
Micro-porous water based paint (three coats, standard), Stain (three coats)
VentilationBackgroundVentilation
4600 mm² (standard)
VentWoodSpeciesOptions
Engineered Accoya, Engineered European Oak, Engineered Hardwood Red Grandis, Engineered Sapele, Engineered Siberian Larch (standard)
WeatherPerformanceAirPermeability
Class 3
WeatherPerformanceResistanceToWindLoad
Class C5
WeatherPerformanceUKExposureCategory
Class A5 P1 at 2000pa
WeatherPerformanceWatertightness
Class 7A
Weatherseal
Full standard with Sashglide® acoustic weatherpile
Pset_DoorWindowGlazingType
Pset_WindowCommon

More information

More BIM objects

What's Changed?

19/01/2017

Changes to reflect updates to the NBS BIM Object Standard v1.3

  • Removal of Uniclass2 property
  • Addition of Uniclass 2015 properties
  • Addition of COBie Category property value

Objects have also been updated to Revit 2015