This month in our series on the factors to consider when choosing a roof window, we look at strength and weather resistance. Plus one lucky reader will win a break away for two courtesy of Dakea.
Roof windows by their nature are exposed to the worst of the weather and as such need to withstand everything that the rest of the roof does. This includes storm damage from flying debris and the force of the wind itself. If not selected and installed correctly the window may fail as a result of severe weather.
The British weather is becoming more unpredictable with severe storms previously considered to be a 1 in 100 year event now occurring far more frequently. Whether for a new build, replacement, or a new addition to an existing property it is vital to select products that will be fit for purpose in the coming years. With the life span of high quality aluminum clad roof windows in the region of 60 years there is a need to ensure that a window installed now will be able to cope with the weather, even into the second half of the 21st century.
In addition to the external factors, the window must be able to resist impacts from the inside as well. With rising house prices, many homeowners are choosing to extend or reconfigure their house rather than move, with loft conversions frequently used to create an extra bedroom. Roof windows are ideal for these applications, but it is important from a safety perspective that the glass is both strong enough to withstand any impacts and not present a hazard if it’s broken.
Choosing a high quality modern roof window will ensure longevity and weather resistance. For example, the Dakea Ultima roof window features resilient panes both inside and out as well as a construction that includes an advanced “welded” seal system to ensure durability and water tightness.
The toughened external pane is 6mm thick, which is 1.5 times thicker than average. This means it is resistant to even heavy impacts from the outside and has been tested for wind speeds of up to 104 mph – the equivalent of a Category 1 hurricane. When ex-hurricane Ophelia reached the UK in October last year it was still gusting at over 80 mph. The 2 x 3 mm thick internal panes are laminated so that in the event of an impact that is strong enough to break the glass, the shards will stay in place rather than fall into the room.
There is a range of factors that should be considered when selecting a roof window for a homeowner. By staying up to date on what is available in the market you can ensure your customer gets the best value for money and benefits from the latest innovations.