Most people picture skylights as bright new additions with more light, a brighter space, completed. This is true, but what’s not considered is how much bigger that change is than people realize.
And not in a bad or good way, but how when you cut a hole in your roof and create illumination from above, you’re changing everything, from the light to the temperature to the intention, all for the space.
Thus, understanding the new realities involved with skylights help make better preparations and less unexpected frustrations.
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The Light Quality Is Not as Windows Would Match
The first part of this reality involves how light comes in from above vs horizontal. The natural light in a space will be very different than window light because of how natural light enters from above. Because it happens from above, it spreads out across the space, less harsh shadows in corners, which are often created by poorly placed furniture or walls not allowing for anything but dark corners.
Since this is the case, it also means the light is harsher because from a south-facing skylight, during summer, sunlight pours down at an angle. This is not how a window works; it’s more direct. But people appreciate this. Some don’t, however, and find the need to implement blinds or shades early on which they weren’t expecting.
Similarly, the color temperature (hot vs cool) occurs throughout the day, but when it’s overhead, it’s simultaneously experienced across the room and not just how window light swoops across over a period of time. Cooler in the morning and more bright and neutral around lunchtime; by late afternoon there’s a warmer presence, but depending on your pitch of roof, you might miss golden hour altogether.
Temperature Control Becomes Complicated
Where this gets expensive is controlling temperatures. Skylights complicate thermal qualities that windows do not during summer. When heat rises, or comes down in this case to glass overhead, it creates a natural magnifying glass (not literally). There comes a point when you’re getting so much direct overhead sunlight that people don’t realize how muggy it gets until their electricity bill spikes due to air conditioning.
This can cost people hundreds per year with poorly placed skylights. The quality of them (double-glazed, triple-glazed, low emissive coatings, sizes all make a difference for how much heat gets dispersed successfully.
In winter, a similar issue occurs: heat rises and with no insulation around the window, or if outside seals are cold, condensation occurs along with bleeding heat out of the house with no good insulation.
Additionally, condensation creates dripping issues along the shaft and/or inside from bathrooms/kitchens which provides humidity. However nice it is to have moisture in these spaces, the glass is cold and all that humidity eventually finds comfort there, and then on your floor.
The Room Intention Changes Often
One subtle thing people don’t realize when they fill a room previously dark with no intention, now flooded with natural light overhead, is that it changes how people interact with it. A guest room becomes an actual guest room instead of leftover storage. A guest office becomes one without feeling oppressive at 3pm in the afternoon.
Similarly, kitchens become different spaces; better lighting for chopping food leads it to become more of an inviting gathering space rather than darkness separating diners from food prep; bathrooms go from necessary utility spaces to spa-like havens, but this requires an extensive amount of thought around placement for privacy.
What’s worse is that newly illuminated spaces can expose missing pieces that sunlight helps reveal. The grey carpet looks worse than anticipated, the white paint looks dingier and in need of a refresh, dusting up abounds everywhere, these aren’t skylights’ faults per se, but realities that jump out at unsuspecting homeowners who feel rushed to do renovations they may or may not have previously planned.
Installation Matters More Than You’d Think
Skylights are not as simple as mounting a TV on your wall – they’re cutting your roof open, all of a sudden you have to pay attention to rafters, insulation and waterproofing that can get complicated fast.
While the skylight itself, from £500-£2,000 depending on size and quality, the labor often surpasses it due to expensive unit installation – especially for those without prior construction experience who dig holes in their roof for skylights without proper flashing.
Pitch matters, a low pitch has to be done differently than steep ones, and some shouldn’t even be tried. Flashing is essential so that there’s no leak, and this is where DIY fails. It’s better to bite the bullet and pay for one professional because water damage costs so much more down the line.
For those interested in different options, Sunsquare skylights has useful rectangular/square solutions made to prevent potential installation issues while still operating best through thermal dynamics, which should be considered for something potentially permanent.
The work around the skylight is also underestimated, with framing when cutting out the hole for proper clearance, for headers or sister joists may be required to avoid wastage or structural integrity when installing if square/rectangle units are bigger than typical.
Where insulation meets the ceiling must also be highly considered, otherwise cold drafts will come through and create insulated problems.
Maintenance Isn’t Mentioned Enough
Skylights get dirty – and as obvious as this sounds, many do not realize until it’s covered with dirt, leaves and pollen preventing transmission of light throughout the space.
Unlike windows where you can spray and wipe easily, you might have to lug a ladder out, or go onto your roof depending on size/placement/pitch, which requires professional cleaning up to twice a year for maximum functionality.
Inside can get condensation and dust instead of muck as well. An opening skylight has moving mechanics (hinges/openers) that can jam, as with any item, not to mention seals down the road either shrink/melt, the ability to keep plastic flexible fails as well, with time, and this isn’t an issue of leaking unless flashing is looked at once every few years.
Small leaks are $200 problems. Leaks overlooked become entire ceiling tear downs with expansive replacement costs. If they leak on their own unnoticed without attention paid to ceilings that are lacking frosting any protection from top down leaks, it’s drywall replacement instead of patching holes behind insulation first.
Sound Differences Come from Unseen Places
Rain sounds different than how it’s absorbed through traditional roofing materials, people find it comforting sometimes; they find it annoying when hail creates pounding inside bedrooms that prevents sleep or conversation.
Wind noise through the opening windows can interrupt things, but it’s not necessarily a bad thing. It’s one of those sounds that no one considers unless they want sound-free availability like nursery purposes or office spaces, and while they could be quiet, it’s often dependent on construction quality, sound absorption with acoustics make this variable sound quality huge.
How Best to Make It Work
The right type of skylight match for window purpose determines better success than cheapest/biggest units provided without resource, ventilation opens windows; bathroom units should be frosted for privacy, not necessarily ease; living rooms need more potential heat management through larger-than-expected units beyond prior perceived sizes, kitchens need easily cleaned access.
Size matters more than people think; too small it’s ineffective. Too big heat acquisition doesn’t work as well as light overwhelms comfort levels; experts recommend 5-15% of a room’s dimension for an installed skylight; but existing windows matter for planned considerations as well as interior space pitch orientation for NYC climate needs which differ from Texan requirements because of golden hour positioning across four seasons all year long.
Path consideration matters daily/annually too, the perfect morning winter sunrise may become the worst sunset summer baking over so high up, adjustable systems add costs but prevent costs later instead; many people skip them only to realize they need them down the line while regretting excess spending than just saving time up front.
Skylights change your relationship with a room, and it’s more than aesthetic or property value additions, it’s how new functionality becomes possible transformed by indirect budgeting based on added costs, which ultimately add transformed value and perception if details work out properly; otherwise you’re left wishing you’d paid attention more completely or research beforehand instead of taking $1,500-$10,000 over your head for granted all along.