In such cases, the roof space may need to be modified or the ceiling lowered before insulation can be installed.īefore installing insulation, address any leaks, air gaps or wiring issues in the ceiling space. In contrast, ‘skillion’ or ‘cathedral’ ceilings often have limited clearance between ceiling and roof. ‘Attic’-type ceilings with easily accessible cavities can be insulated with minimal or no modification. The key consideration when installing insulation at most clubs is the size of the ceiling cavity, or the space between ceiling and roof. While it can be useful for inaccessible areas, it is difficult to ensure correct distribution of the material, making its insulating performance variable.įor more details on the different types of ceiling insulation to choose from check out these summaries by BRANZ and EECA. It complies with Standard AS/NZS 4859.1 (this will be printed on the packaging).īe cautious about choosing ‘loose fill’ insulation, which is blown into cavities that can’t easily be reached. It has the correct width to fit between the rafters or joists, to avoid gaps. It is designed for installation in ceilings. Its R-value, relating to the effectiveness of insulation, is at least 2.9 for North Island and 3.3 for South Island buildings - but if you can afford a higher R-value, always go for it.
#Triple glazed windows r value professional
While it is always best to speak with a professional before selecting a product, please ensure the insulation you pick meets the following criteria: There is a wide range of insulating products available, each appropriate for different roof types and situations. The most critical part to insulate in your clubroom (and home) is the ceiling, as heat rises and easily escapes through an uninsulated roof. An ordinary single-glazed aluminium window has an R-value of around 0.15, while the very best double-glazing achieves around 0.5. Simply put, the R-value is a measure of the effectiveness of insulation: the larger the number, the better it is at trapping heat. You used to be able to stand near a window to get a good idea of how warmly you were going to need to get dressed before going outside but those days are gone with triple glazing.When discussing any kind of insulation, it’s important to understand R-values, or thermal resistance. Even modern double glazed windows are performing fairly well but the triple glazed window is holding onto heat much better. Next to a triple glazed window with a center pane U value of 0.125, the temperature is 69.2☏Īs you can see, double glazed windows are vastly better than single pane windows.Next to a modern, energy-efficient double glazed window, the surface temperature is 61☏.
But for new homes being built today, triple glazing is a no brainer and let me tell you why. Shocking, I know! Sure, if you have an old leaky house that allows un-tempered exterior air to freely exchange with conditioned interior air at the rate of a cinematic fan, then triple glazing is not going to help you much. We want to save our climate, but not if it hurts too much… Guess what, triple pane windows are more expensive and often only used on sophisticated and luxurious homes. Flash forward to today and you can easily see our cultural push for sustainability and energy efficiency.
#Triple glazed windows r value full
Then the global energy crisis hit in the 1970’s, and spurred the full adoption of the much more energy efficient double glazed windows. Over the following 20 years double glazed windows were expensive and popularized simply as the peak of luxury and sophistication. In the 1930’s, double glazed window technology came to the US. Before we get too far on why you should be excited about energy efficiency and comfort, here is a brief history of US windows. Comfort is the reason you will want to use triple glazed windows. Triple glazed windows are the new stars of window energy efficiency.