Conservation and Heritage Units

Introducing Topline’s new Heritage range…

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::Latest Product News 2012 ::

TOPLINE

GLASS AND GLAZING LTD

CONSERVATION UNITS...

General - Heritage double glazed units have a butyl hot melt perimeter and should be treated as any other untaped double glazed units when installing in timber frames. It is important that you adhere to the following guidelines and those of the GGF regarding installation to ensure that the external glazing seals cannot allow any water ingress. Do not tamper with the perimeter seal or allow any contact with chemicals, particularly methylated spirits or alcohol based glass cleaners. The units must be stored and installed in totally dry conditions.

Bedding Method - Ensure that the apertures are totally dry before commencing. Units should be bedded in using butyl putty, low modulus neutral cure silicone or an appropriate glazing tape. Spacer blocks should be used for support and a gap of between 1mm and 2mm should be allowed between the edge of the unit and the frame.

Facing Method - If face fronting with linseed oil putty, all voids around the perimeter of the unit should be firstly sealed with a low modulus neutral cure silicone or sealed with butyl putty and allowed to cure before facing up. NOTE - ENSURE U9 SILFIX CURES BEFORE FACE PUTTYING. To reduce the risk of linseed oil contamination we would further recommend that a face putty of 50% linseed oil putty and 50% butyl putty is used.

Timber Beads - Timber beading should be bedded onto low modulus neutral cure silicone or a similar glazing sealant suitable for use with butyl sealed units prior to pinning in place. If using glazing table it is essential that the bead joints and edges are sealed with silicone to avoid water penetration.

IT IS IMPORTANT THAT THE ABOVE GUIDELINES ARE ADHERED TO. FAILING TO DO SO WILL INVALIDATE WARRANTY.

Timber provides one of the best insulation values of any material used in the construction of a window, and has been used extensively over the last hundred years,

In the past, sliding sash windows and Georgian style grid windows (normally found in older and listed property) have meant lack of insulation. But now we have the answer. Our conservation units with reduced sight line and slim profile provide an end to condensation, and a solution for more comfortable living.

Unlike alternatives of this style unit, our conservation units are competitively priced and will achieve a centre pane U-value of 1.7. These units are suitable for beading or face putty, and the matt black finish spacerframe is unnoticeable when glazed.

Given the governments drive to reduce Co2 emissions, the use of our conservation units should be accepted by Planning and Conservation Authorities as there is no change to the physical appearance of the window, and instead provides reduction in energy requirement, and therefore less Co2 emissions.

Recommended Glazing Method:
Frames to be undercoated or sealed.
Units to be bedded on U-9 silicone.
Fill void completely, then either bead or face putty.
Recommended maximum size is 0.5m².

HERITAGE UNITS...

Here at Topline we have invested in the latest technology in glass and glazing. It is now possible for us to manufacture a double glazed unit with an overall thickness of just 12mm, and a sight line of only 6mm.The emissivity coating on the inside of the unit reflects heat back into the room, and by using the very latest in warm edge spacer technology we can ensure that these super slim units still retain an excellent centre pane u-value.