Quality Windows, Doors and Conservatories to the Trade

Highseal Manufacturing Company

Frequently Asked Questions

How often should glass be cleaned?

Glass cleaning should be carried out at regular intervals depending on site location, area, weather and etc. It is essential that all glass be thoroughly washed to eliminate all abrasive and chemical laden dust that can be potent. 

What should I clean the glass with?

A solvent such as white spirit and professional glass cleaner may be used to remove any glazing compound, fingers marks or grease.

How do I clean self-clean coated glass types?

• Start by spraying clean water to rinse the surface of the glass. This is best done when the glass is in the shade and not being heated by direct sunlight. (Spraying tap water onto hot glass can create visible spots of mineral deposits where it evaporates.) Spray from the top and work back and forth and downwards. This will flush the dirt away from the lean areas and ensure the entire surface is wet. The water flow should remove the bulk of the dirt from the surface.
• Flood the coated surface with spray-on cleaning solution or use a cloth saturated with the solution. Be generous with the amount of solution applied.
• Rub the wetted surface with a clean lint-free towel or cloth and repeat until nearly dry with a second lint-free cloth.
• The use of a squeegee on the coated surface is not recommended. If it is absolutely necessary to use a squeegee then particular care must be taken to prevent any mental parts from contacting the coating or dirt particulars becoming trapped under the blade and being dragged across the surface.
• Rinse liberally with clean “soft” water and wipe again with a lint-free cloth.
• To prevent streaking, stop wiping when the glass is almost dry and there is still a uniform thin film or moisture left on the glass surface. This film will quickly evaporate leaving a clean surface.

How do I clean standard non-coated to external surface glass types?

• Always use a soft cloth
• Always use only clean water and a mild soap/detergent
• Rinse with a separate clean cloth and clean water
• Protect glass surfaces from render, cement and plaster
• Never use scarpers or blades
• Never use harsh, abrasive powder based or alkaline type cleaners

How should glass be handled safely?

Glass by its nature can break if enough force is used. Abide by the following guideline for handling glass:
• Gloves, wrist guards and safety goggles should always be worn when handling glass.
• Extra personnel or lifting equipment should be on hand of lifting larger units.
• Glass should not be rested on its corners
• Areas where glass is being lifted to and from must be obstacle free.
• Any broken glass should be disposed of in a safe and responsible manner.

How do you do a professional check on a glass unit?

Both panes of the sealed units should be viewed at right angles to the glass from the room side, standing a distance of no less than 2 metres away; but for toughened, laminated or coated glasses stand no less than 3 metres away. You must look through the glass, not directly at it. Do so in natural daylight and not in direct sunlight. The area to be viewed is the normal vision area with the exception of a 50mm band around the perimeter of the unit.

What to expect on flat transparent glass?

Flat transparent glass, including laminated or toughened (tempered) glass is acceptable if the following are neither obtrusive nor bunched:

• Bubbles or blisters
• Hairlines or blobs
• Fine scratches not more than 25mm long
• Minute embedded particles

Highseal Manufacturing Company Windows and Doors
Windows from Highseal Manufacturing Company

What to expect on flat transparent glass?

Flat transparent glass, including laminated or toughened (tempered) glass is acceptable if the following are neither obtrusive nor bunched:

• Bubbles or blisters
• Hairlines or blobs
• Fine scratches not more than 25mm long
• Minute embedded particles

My laminated glass looks like it has blemishes in?

Laminated glass may have a few more blemishes due to it being made of several layers.

If you are unsure you can contact us and we will be happy to advise. 

My toughened glass is showing visual distortions?

Toughened glass may show visual distortions which are accentuated by reflections in double glazing. Such surface coloration's and patterns do not indicate a change in physical performance.

 

The low emissivity on the glass is creating visual effects?

Low emissivity coating may produce transient visual effects. In oblique lighting the coating may look like a transparent film. When light coloured objects such as net curtains are placed close to glazing they will appear slightly darker.

 

What is acceptable for patterned glass?

Patterned glass manufacturing process is different. Imperfections such as seeds and bubbles are deemed acceptable.

Why do I have a double reflection?

This occurs in certain light conditions. It is caused by multiple surface reflections in double glazing which may vary from pane to pane.

Why does the glass unit have a rainbow effect?

Small transitory rainbow effects are sometimes produced by the glass deflecting light. Their appearance is due to high quality flat glass sheets being placed parallel to each other. This is an optical phenomenon.

Why do I have indoor condensation on my glass unit?

The principal cause of condensation on glass on the inside of a building is a high internal humidity level coupled with a low outside temperature which cools the inside surface to below the dew point. Bathrooms, kitchen and other areas when humidity levels are high are particularly susceptible to this problem.

How can I prevent indoor condensation on my glass unit?

In order to control this form of condensation, condensation should be given to improving the heating and ventilation in these areas. However, another way to reduce the problem is to use high performance windows containing an enhanced thermally insulation glass.

Why do I have outdoor condensation on my glass unit?

Condensation forms on the outdoor surface of glass when its temperature drops below the outdoor dew point temperature. External condensation only occurs in certain climatic conditions with high humidity levels and/or particularly cold weather. It is possible that, external condensation will appear on some windows but not on others. This is due to localised atmospheric conditions such as shelter from nearby trees or buildings, variable air currents and wind speeds and varying levels of nearby vegetation.

How can I prevent outdoor condensation on my glass unit?

Insulating units containing an energy efficient, low-emissivity glass have enhanced thermal insulation properties thanks to high performance transparent coating that reflects heat back into the room. As a results the outer pane of glass does not get warmed by heat escaping from inside the building through the glass and remains cooler in comparison to less thermally efficient windows.

Address

Fair Share Group Limited - Highsealfsg

26 Hebden Road, Scunthorpe, North Lincolnshire, DN15 8DT United Kingdom

Phone Us

+44 (0)1724  859  326

Send a Fax

+44 (0)1724  845  576