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Our Skyline Box range of glazing bars offer an economical roof glazing solution when compared with curtain walling roofing systems. The glazing bar's strength is provided by an internal box section. The glazing bar is weathered by a screw on pressure cap (PC1) with a choice of plain (PC2) or ornate (PC3) cosmetic outer snap-on cappings to conceal all fixing screws.



When used with high performance double glazing units with warm edge spacer bars and argon gas filling this system can achieve an overall U Value of 1.4W/ m²K to comply with Building Regulation Document L.


Our Skyline range of glazing bars offer an economical roof glazing solution incorporating slim sightlines. The glazing bar's strength is provided by an internal stalk (or fin) which is cut away at the top and bottom main fixing positions.
An internal snap-on ornate capping system (PC4) is also available if desired to fully conceal the internal stalk giving the appearance of a feature timber rafter.



When used with high performance double glazing units with warm edge spacer bars and argon gas filling this system can achieve an overall U Value of 1.4W/ m²K to comply with Building Regulation Document L.


Timber rafters (supplied by the builder or joinery sub-contractor) will create an appealing visual effect inside any home and are totally protected from the effects of weathering by our externally clad Rafterline Patent Glazing system.
Due to the pleasing aesthetics of aluminium and timber materials our Rafterline system is the most popular specifiers choice for domestic projects.



When used with double glazing and thermal breaks this system is easily capable of providing an overall U Value of 1.6W/ m²K to comply with Building Regulation Document L.


Our Traditional patent glazing system remains our customers most popular choice for use on unheated spaces such as Railway Stations, glazed canopies and covered ways where thermal properties are not a consideration.
This system has been installed on thousands of projects nationwide and is available with a choice of capping systems to suit your needs.
A truly great glazing system combined with economy and a proven track record. 30,000m² of this glazing system has been installed by us on many major railway stations throughout the UK in recent times.



This system is capable of accommodating solid or multi-wall polycarbonate sheets or double glazed units up to 28mm thick if used on unheated spaces or where compliance with Building Regulations Document L are not a consideration.


Our 'Heritage' Patent Glazing Bar range is truly unique amongst roof glazing systems; there are no alternative products available on the market which can match an original lead covered steel patent glazing bar which originates from the Victorian era. This range has been manufactured by us unaltered for over a century and is the perfect product for listed buildings and for use in the refurbishment of significant and historic buildings. This system is also still very popular for new build projects and should not to be overlooked on today's modern buildings where a unique character look is desired.

 


Most patent glazing systems have glazing bars spaced at approximately 600mm centres. This is not a rigid dimension and it can be varied significantly.
There are however a few constraints that determine the possible width of the glazing bar centres which are usually project specific. Please read on for more information .......

 

 
  • Glazing Bar Spacings




At the dawn of the Patent Glazing era, a consistent production of glass had evolved at a dependable width and glazing bar centres have historically remained at this width since (approximately 600mm centres or 2 foot). Conveniently, a 600mm wide pane of glass or double glazed unit up to 3000mm long can usually be carried safely and practically by two or three site personnel under each man’s arm, and this rule of thumb for the optimum width remains today.

Wider centres than 600mm can be used on Patent Glazing, but consideration must be given to the logistics of high quality access, provision of lifting equipment and future repairs/replacement which could become extremely costly if craneage is the only solution after building handover has occured.

Under CDM the Designer has a responsibility to specify suitable products to enable a project to be executed safely. It is therefore important that the Patent Glazing Contractor is approached early on in the design stage to discuss the practicalities of using glazing panels with large widths.

Patent Glazing is capable of having glazing bars spaced up to 1000mm wide with a suitable glass product but this is generally restricted to glass lengths of up to 2000mm or a glass pane area of 2m². Pane sizes exceeding this criteria would normally require the use of an expensive contract lift to install the glass safely.

We do not recommend the use of 6.4mm laminated glass in sloping patent glazing at centres over 650mm, due to the risk of mechanical breakage occurring (self weight). At very wide centres, we recommend using toughened glass with an optional factory fitted anti-shatter film or a special toughened laminated composition .