• All cills and eaves rails are jointed and bolted at all intersections.
• All roof components are cut, jointed and designed specifically for the roof being produced - no standard components are used in any area of the roof.
• Frames, doors and sashes are manufactured using the Atrium patented jointing system which ensures that all timber end grain is sealed internally within the joint thereby avoiding moisture absorption and the possible distortion of components which is common with more conventional jointing.
• All adjoining components are designed to interlock in a manner which creates a building design with a greater structural integrity than almost any other currently available.
• Buildings with a wide free span will usually be fitted with an aesthetically designed tie bar system for the purpose of avoiding building "spread" under roof load caused by exceptional falls of snow etc.

Roof:

We favour toughened double glazed units for roof glazing which has a superior performance and greater clarity. (Polycarbonate may be supplied upon request.)

• Where a glass roof is specified, 24mm toughened sealed units are fitted as standard (the optimum size for purposes of insulation) with the option of Pilkington K glass for further enhanced insulation, bronze anti sun for its anti glare properties and polymer coating to maintain clean glass for longer.
• All roof glazing is fitted within a high compression EPDM rubber seal mechanically fixed in to the roof spars, ridge, fascia etc and designed specifically for the purpose.
• The roof glazing will commonly be capped with either aluminium maintenance free roof caps from the Exitex range (link opens new window) or moulded timber roof caps for enhanced aesthetic appearance.

• glazing to all windows will be with 24mm sealed units (unless for Listed building purposes windows are of flush sash design when 16mm units will be used)conventionally manufactured using a bronze spacer to match the finished item.
• All doors will be glazed with 16mm toughened glass sealed units.
• All glass used will be to a minimum standard of BS6206 Class A (internally and externally).
• All sealed units will be glazed directly into frames, doors etc. using low modulus neutral cure construction silicone to ensure that the building is totally impervious to water ingress through the glazing rebates, to minimise any possibility of sealed unit breakdown and to ensure that all face glazing forms a security barrier to any unwelcome visitors.
• All sealed units usually carry a minimum of five years guarantee from the manufacturer.

• All sealed units form a security barrier as already stated.
• The friction hinges fitted to the windows are rated “heavy duty” and lock as the window is closed. This will deter any entry from the hinge side of any sash.
• All door hinges similarly interlock when closed ensuring the door may not be removed when locked by cutting out the hinge pin and opening the door from the hinge side. All hinges are fully adjustable in all planes.
• Windows are closed and locked with the use of a mushroom cam espagnolette which is fitted into the edge of the window and is therefore not accessible in any way from either inside or outside when the window is closed. The mushroom headed cams interlock with the keeps in either fully closed or night vent position and, in their closed position, the window handle automatically locks to ensure that the window cannot be opened without destruction.
• All window and door handles are solid cast and plated and therefore extremely strong and will obviously further deter unwelcome visitors.
• The first opening door is locked with the use of a cremone multi point lock which is effectively a high security three point mortice lock (22mm throw) fitted to the full height of the door. The locking barrel is a separate part and is designed with security in mind.
• The second opening door is fitted with slide bolts fitted to the inner edge of the door, only accessible when the first door is opened.

• All opening apertures are fitted with dual hardness fin style seals to ensure that there can be no draught, leak or other inconvenience.
• All face glazing and roof glazing has been dealt with previously insofar as it is fitted into frames or onto roof spars.
• The timber structure is fitted down to the base brickwork or stone work and to the host building in a manner which ensures that all gaps are sealed against the weather initially with a damp proof course to the baseworks and further sealed against the elements with either an acrylic or silicone based seal between all timberwork and cement based structure.
• All junctions between roof glazing and house wall are double sealed against the weather initially with the use of an adhesive bitumastic based membrane and finally with a lead flashing (either stepped or straight according to site conditions).

• All window and door furniture is commonly supplied in a non tarnish brass finish and is of the very highest quality available, bearing in mind the constraints of our own self imposed, high security standards.
• All frames, roof spar caps etc may, as an option be pre-moulded to a design of the customers choice (eg, ovolo, scotia, chamfer, lambs tongue etc.).
• The finial of the building will commonly be lathe turned out of solid timber to produce a substantial and worthwhile addition which makes a great deal of difference to the building's ultimate appearance.
• The cresting is substantial but relatively delicate in design (open fleur de lys) therefore this must be produced from aluminium since timber would not have the inherent strength in this design.