Does Double Glazing Reduce Heat In Summer Uk? in Karawara Western Australia thumbnail

Does Double Glazing Reduce Heat In Summer Uk? in Karawara Western Australia

Published Sep 01, 23
3 min read

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That window can send more solar heat in winter season than in summertime. A west-facing window on a summer season's afternoon has an angle of occurrence from near 0 approximately 30 with a big reliable location of solar radiation. A north-facing window, in summertime, has a high angle of occurrence and a low reliable area of solar radiation, so can transfer less heat than a west-facing one.



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You can rapidly and easily enhance the thermal performance of your home by changing your windows. There are thousands of types of glass and frames to pick from.

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There are various types of glass products to select from. Single glazing uses a single pane of glass. Single glazing with clear glass is not very efficient when it comes to heat loss or gain. To enhance efficiency, you can use single glazing with a more energy-efficient kind of glass such as low emissivity (low-e) glass.

The energy efficiency of IGUs also depends on: the residential or commercial properties of each layer of glass. Various glass types (for example, clear and low-e glass) can be put together in an IGU.

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IGU cavities can be filled with air or a more inert, low-conductivity gas such as argon the width of the cavity. Cavity thickness is usually 6 to 18mm. Broader cavities offer lower (better) U worths, with 12mm generally accepted as the favored gap how well the cavity is sealed. Cavities must be dry and well sealed to prevent wetness getting in.

If argon is set up to the cavity in place of air, moisture is reliably excluded the level of desiccant (drying agent). The spacer (metal or polymer strip) that separates the glass layers contains a desiccant to absorb any wetness. Inadequate desiccant may cause moisture to condense on the glass surface area in cold conditions, reducing thermal efficiency.

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IGUs can deliver better energy performance for all environments, especially in heated and air-conditioned homes. Cross-section detail of single, double and triple-glazing systems Low emissivity glass (frequently called low-e glass) minimizes heat transfer. Low-e glass may be either high or low transmission: High transmission low-e glass has a covering that permits daylight from the sun to pass into the house to attain great solar heat gain, but lowers the amount of the long wavelength infrared heat that can get away back through the window.

Low-e glass has either a pyrolytic finish or a vacuum-deposited thin film metal finish. Pyrolytic finishes are durable and can be used for any glazing; vacuum-deposited finishings are soft and are only utilized within IGUs. Low-e coatings can substantially improve both U value and SHGC; however, they should be utilized properly or they will either deteriorate or fail to carry out as required.

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Low-e coverings can be utilized in combination with clear, toned or reflective glass. Low-e coatings on glazing can minimize heat transfer where needed Photo: Department of Market, Science, Energy and Resources Toned glass has colouring additives included during manufacture. It is offered in numerous colours, typically bronze, grey, blue and green.