Are costs the only downside of skylights and roof windows compared to standard windows? Why is it crucial to purchase high-quality skylights, and why is it essential to follow installation procedures strictly? What about the “excess” sunlight?
Adapting an attic space often involves compromises. However, with thorough planning and expert advice, an attic can become much more attractive than a traditional apartment. When designing an attic space, installing skylights or roof windws is often necessary to ensure adequate lighting.
Before purchasing skylights and hiring a professional, it’s important to be aware of some of their drawbacks:
High-Quality Skylights are Essential
This applies to all windows, but it is especially critical for skylights and roof munted windows. With standard wall-mounted windows, you might never notice a slight draft, but with skylights, this becomes evident with the first rain.
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Quality is essential because skylights must withstand years of rain. This means all sealing and locking components must function correctly even after thousands of opening and closing cycles.
Professional Installation is Necessary
Buying a high-quality skylight and having it poorly installed is worse than wasting money; it’s a potential source of significant problems, like moisture penetration. Even a small amount of moisture can ruin thermal insulation, while larger amounts can damage flooring.
Therefore, it is recommended to purchase high-quality skylights and have them installed by professionals authorized by the manufacturer. The installation process is straightforward but must be followed correctly to ensure the skylight functions flawlessly.
Higher Costs Compared to Standard Windows
On average, skylights are more expensive than equivalent wall-mounted windows. However, during attic adaptations, there often isn’t a choice between wall or skylight windows since skylights might be the only solution.
One option is to build a dormer to install a standard window instead of a skylight, but this is generally not a cheaper alternative.
Skylights Can Sometimes Let in Too Much Light
When adapting an attic, it’s crucial to consider the direction the skylight faces. A skylight facing south can cause excessive heating during summer, as the attic is usually the warmest part of the house.
However, reputable skylight manufacturers offer various sun protection systems, from blinds to shutters. It’s important that this sun protection is mounted externally. Internal blinds or shutters can darken the space and protect furniture from direct sunlight but won’t reduce room heating.
Cold Air During Winter Months
When arranging furniture, consider the placement of the skylight. It’s not ideal to have it directly above a bed or sofa where people spend long periods. Typically, warm air rises while cold air falls. Prolonged time directly under a skylight, no matter how well-made, can be uncomfortable.
More Challenging to Clean
Skylights are more exposed to precipitation and dust accumulation than wall-mounted windows. In urban areas, city grime accumulates, while in green surroundings, pollen can build up on the glass. Even light rain can leave clear marks on the glass. If a crystal-clear view is a priority, you might want to consider installing a dormer. Classic vertical windows get less dirty and are easier to clean.
Photo: Velux