Skylights are one of the most useful and easy to install improvements to your home. Most installations do not involve cutting any structural roof supports, so they are perfect for "do it yourselfers" !  

 

Overview:     Over the past 23 years I have installed 50 skylights and as a result I have some recommendations. 

1. Most people never open a venting or opening skylight once itís installed, so think seriously about using a fixed panel skylight. 

2. I have not located a better brand skylight than Velux. Their flashing system is simple and never leaks. 

 

 

 

3. Use the 22" wide skylight units whenever possible, as they do not require cutting of any roof supports. If you want to have more glass, simply gang together a series of 22" wide units. You can have an entire roof of ganged and stacked skylights and not effect the structural integrity of the roof framing. Velux sells flashing kits for just about any configuration you can dream up.

 

Installing skylights:

The drawing portrays a simple installation between rafters or trusses. There is no difference between rafters or truss installations as long as you donít cut the roof framing.

 

The installation instructions included with each unit tell you to cut an opening in the roof sheathing (plywood under the shingles) to the dimensions of the unit purchased. The skylight sits on itís own legs fastened to the outside of the sheathing. The flashing kit is then installed and nailed as instructed. No caulking is needed.

 

 
The drawing shows the interior framing you add for a drywall box leading from your ceiling to the skylight unit itself. Most installations use a metal drywall corner bead at the turning point of your ceiling up to the skylight unit. Youíll notice the box framing is angled outward, and is larger than the dimensions of the skylight itself where it meets your ceiling drywall. This is to allow more light into the room, and have less of a tunnel effect.  Finish the drywall, paint, and enjoy!

 

 

 

 

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