Windows
Room use: “If you are on a budget, a good starting point is to look at the places in your home where you will experience everyday benefits from performance glazing,“ says. Invest in the rooms that are used the most, such as living and family spaces, to increase the comfort level and reduce heating and cooling costs. For north-facing living spaces, which are exposed to direct sunlight, consider a glass that reduces UV exposure and glare.
Measuring Heat and Solar Radiation Transfer U-value: Conduction is measured with a U-value. U-value is the measure of how much heat is transferred through glass. A lower U-value indicates better insulation properties, which means reduced heat gain in summer and heat loss in winter. Solar heat gain coefficient (SHGC): SHGC is the measure of how much heat from direct sunlight (solar radiation) passes through the window. A greater amount of solar radiation can pass through windows with a higher SHGC, enabling solar heating for the home. A window with a lower SHGC allows less solar heat to pass through. Glass selection has a big impact on the SHGC measure of a window or door.
1. Notice the retractable awnings. 2. Low-E glass: Low-E (low emissivity) glass has a transparent coating – an invisible layer of metallic oxide – that minimises the amount of heat that passes through the glass while still allowing light to flow through. Low-E coatings add to the cost of a window, but they can cut your energy costs.
sheer & block out combination
Q