Pronto Joinery Ltd
Pronto Joinery Ltd

Glass and Glazing

We can supply the glass with your windows and doors. All our glass is either supply only or factory fitted. We do not fit glass on site.

Your joinery can be manufactured to take single, double and triple glazing depending on your requirements or regulations. Double glazing has improved over recent years which now includes low e soft coat glass, Low Iron and slimlite double glazing for applications where glazing rebates are too small for standard double glazing. Gases including Argon and Krypton gases are added to increase the thermal efficiency of the units. 


All glazing rebates and beads must be painted before glazing. This includes the ends which are normally sealed with end grain sealer before painting. Use glazing packers to centralise the glass in the opening. When fixing glazing beads use a waterproof sealant on all mitres and end joints. Fill all pin holes and repaint. Following this method will stop the ingress of water into the joints and prevent any issues with paint and glass.


When using silicone make sure it is compatible with double glazing units. We recommend Silfix U9. Failure to do this will result in damage to the unit and loss of glass guarantee. Glass failure is noticeable by black runs inside the units.

When glazing 12mm slimlite double glazed units please check manufacturers recommended glazing guidelines. 

All glazing to be in accordance with GGF requirements.

General guide to glazing 2022.pdf
Adobe Acrobat document [617.7 KB]

Glazing can be achieved by various methods:

SINGLE GLAZED

For single glazed windows and doors, putty would usually be used with the option of glazing beads if requested.

24MM DOUBLE GLAZED UNIT WITH APPLIED BARS

For applied bars (stick on bars) on windows and doors, use double sided security tape on the beads and bars. Available in black and white. Silfix U9 Silicone must be used to fill the void around the double glazed units.

24MM DOUBLE GLAZED UNIT WITH NO BARS

For windows and doors use double sided security tape on the beads. Available in black and white. Silfix U9 Silicone must be used to fill the void around the double glazed unit.

 

 

Glazing with just silicone can be used in certain circumstances.

12MM SLIMLITE / SLIMLINE DOUBLE GLAZED UNITS

Slimlite and Slimline units must be glazed to manufacturers recommendations bedded in and faced with Hodgson  Heritage PuttySee PDF download or face beaded also using Heritage putty.

Sashlite glazing method 2018
UA-Sashlite-Glazing-Method 2018.pdf
Adobe Acrobat document [178.4 KB]

WARNING

 

PLEASE NOTE WHEN USING SILICONE ENSURE THAT IT IS THE CORRECT PRODUCT FOR DOUBLE GLAZING. WE ONLY RECOMMEND SILFIX U9

(Please read the small print if using another manufacturer)

We hold a small stock of security glazing tape, georgian bar tape, ,U9 silicone and packers. Subject to availability. Please order with your glass.

Applied glazing bars are used to keep the site lines to a minimum which is 22mm as standard.

Moulded timber is applied to both sides of the glass with a dummy bar grid in between the glass.

To be glazed with 22mm georgian bar tape on both sides of the glazing bars. 

Downloads

Pilkington Decorative Glass Range Novem[...]
Adobe Acrobat document [783.5 KB]
Hodgson H5 Glazing System.
For single glazed or slimlite units.
HS-The-H5-Glazing-System.pdf
Adobe Acrobat document [127.7 KB]
Hodgson H7 Glazing System
HS-The-H7-Glazing-System.pdf
Adobe Acrobat document [130.6 KB]

Sealant usage calculator

Diagram showing areas of glass which should be toughened in any building.

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