What Are the Different Types of Double Glazing?

Double Glazing refers to the construction of a structure with the purpose of reducing heat loss from a building in summer and re-establishing thermal efficiency at winter. Double glazing means that the windows have double glass panels instead of just one. Insulating glass is made up of two or more pane windows separated by a solid or gas filled cavity for the reduction of heat transfer across an interior portion of the structure envelope. As there are two panes, there are greater lengths of glass per pane and this is why single-glazed windows are not as effective as double-glazed. Even though the energy costs in having double glazed windows may be greater over time due to lower transfer of thermal energy, it is nevertheless a considerably more cost-effective solution for lowering energy bills for the construction period. You should ask Double Glazing Hereford based firm Firmfix to do yours.

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There are several types of double glazing including primary double glazing, UPVC double glazing and UPVC double glazing. The main differences between these are based on the materials used to build them. For primary double glazing, which are generally aluminium framed, the panes consist of 100% aluminium; secondary glazing on the other hand consists of a thin layer of aluminium attached to another layer of either uPVC or wood. UPVC double glazing is the most popular variety, as it offers the most efficient insulation among all the types. The air gap formed between the glass panes is kept open through the uPVC membrane or by leaving some air spaces between the aluminium frames. The air gap in the secondary glazing is kept closed by uPVC film and also a gap is created between the second layer and the ground, through which the warm air within is warmed.

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With UPVC double glazing, a thin layer of uPVC film is fused to the back of the glass and this is done to create a thicker air gap than with the aluminium framed types. An air gap of four inches is the maximum that can be installed in an average size room and for this, the installation is made on both sides of the glazing and a spacer bar is placed in the space to create the desired effect. Spacer bars are available in different widths and are used to prevent the warm air from flowing in and out of the room. The installation is fast and takes only a few hours to complete.