Rehau S719
General Description
Two sashes, built into the frame, can slide in opposing directions and will remain in any desired position. The subframe, which makes up 3 sides of the window, is welded at the top two corners and mechanically joined at the bottom with a cill by means of screws.
Profile Design
The profiles are designed with front chambers to achieve good heat insulation characteristics and allow isolated drainage and a second chamber which allows the fitting of efficiently designed reinforced sections.
Frame & Cill
The depth of the frame is 137mm. It has two cill options, a flush cill and an overhanging cill. The overhanging cill projects 76mm from the face of the frame. The cill is mechanically jointed to the frame and is an integral part.
Sash Options
Heritage applications – 3 sash profiles which replicate the traditional putty line chamfer externally and a sculptured joinery detail on the glazing bead to the inside.Traditional timber aesthetics can be replicated by combining sight lines of 42mm, 52mm or 62mm with the 75mm Heritage Deep Bottom Rail. The 10mm incrementally stepped sash profiles allow for equal glazing sight lines to run from top to bottom sash, which creates, an aesthetically pleasing finished product.
Seals
Each window frame contains six weather seal locator grooves, which allow for the insertion of seals between sash and frame.This creates an excellent barrier against both water and air ingress. In order to protect the brush seals against dirt and driving rain from the outside, the sub-frame is stepped twice. Furthermore, by concealing the edges of the sashes an outstanding insulation factor is achieved.
Fittings
A wide variety of standard fittings may be used. An injection moulding specially developed by REHAU, ensures the firm and reliable location of the sash, and an adjustable pivot bar facilitates the installation or removal of the sash. Steel reinforced sliding latches allow the sashes to be tilted inwards to enable the window to be cleaned.
These can be locked off if desired to prevent unauthorised tilting of the sash.Standard balances of 14mm or 19mm diameter may be used with this system.
Glazing
The Rehau Heritage Sliding Sash Window is internally beaded and takes a 24mm or 28mm DGU. They can be purchased either glazed or unglazed.
Spiral Balances
The spiral balances all carry a 10 year guarantee. They are all pre-tensioned, however occasionally a nominal adjustment is needed after glazing. This operation is carried out in the factory if the windows are factory glazed.
Surface Mounted Georgian Astragals
In an effort to keep the glazing bars as slim as possible to imitate the glazing bars on traditional sash windows, Rehau have designed a surface mounted Georgian Astragal. This is bonded to the glass by Double Sided Tape. Placed within the double glazed unit is an ‘authentic’ georgian bar grill, thus giving the effect of individual units.
Colour
The main profiles are extruded to REHAU’s own white colour reference 159. All gaskets and Low-level co-extruded profiles are available in an aesthetically pleasing ‘Silver’ colour as standard.