However there are other issues to think about.
Flat vs pitched roof skylight.
For many skylight applications on flat roofs there should be a minimum pitch or fall of 0 6 in 12.
The longevity of a pitched roof is usually superior to that of a flat roof leading many homeowners to choose it for their properties.
A skylight is a fixed window set into the roofline.
It may incorporate venting options but the window itself does not open.
Inspecting a pitched roof is easily done.
The materials used are generally more weather resistant and durable though with more robust materials being introduced into the flat roofing market this gap is starting to close.
This is enough to ensure that water will drain off the surface of the glass and avoid pooling.
Most of the time they do not leak from the beginning but it will take several years to become a problem.
Pitched roofs last longer than flat roofs precisely because they are less likely to leak.
With a velux flat roof skylight designed to meet the growing demand for skylights in homes with flat or low pitch roofs you can transform and improve virtually any space with daylight.
If it s for a flat roof you ll want a rooflight.
However although pitched roofs may be more difficult to clean and inspect due to the sloped structure flat roofs often.
A roof window actually opens usually with a pivoting awning style mechanism.
Skylights have the function for bringing natural light into a dark area in a building.
If it s going on a pitched roof you ll want a roof window.
Designed with flat roofs in.
For roof pitches of 0 15 degrees 0 12 3 12 a curvetech fixed flat roof skylight makes a great choice because the curvature allows rain to roll right off and it captures more light than its flatter counterparts.
Both flat and pitched roofs require regular maintenance.
So often they are the primary cause of a leak in a roof.
Some skylights are for pitched roofs and others for flat roofs only.
In most cases choosing between a roof window or rooflight or skylight is easy.
It may even incorporate window screening in much the same way as an awning style window set into side walls.
The higher the pitch the more effective it is at draining off the water so although 0 6 in 12 is often the recommended minimum pitch installing the unit slightly higher for example at 1 in 12 will prove more efficient.
These new flat roof skylights are fitted in a pvc curb and topped with one of two covers.
An external inspection is likely to reveal any problems.
Off the shelf design vs customised.
Fixed skylight are available if you only require light however we recommend you consider an opening model to provide fresh air and vent rising heat.
The long life means that they may work out cheaper in the long run than a lower priced flat roof.