I am going to put in some rigid skylight tubes on the roof and I'm curious about installing them. The instructions and videos online say to remove all the shingles to place the skylight tube down on the roof and then replace the shingles. I have always just slipped the flashing under the upper shingles after cutting a hole in the roof. Is there a reason why slipping skylight tubes, whirly birds, vents, etc under the roofing material is a bad idea vs tearing all of the shingles off to beging with?
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Skylight tubes and roofing
- Thread starter Jarnipman
- Start date
matt_i
Well-known member
My opinion is that you want to use peel & stick underlay over top of the nailing flange (?) to take advantage of the sealing properties it has around nail penetrations as well as gasketing the flange. Probably 2 pieces lapped up from the underside.
Like any job it can be done with the (good, fast, cheap) conundrum in effect. Typically the manufacturer is trying to give you the best chance for success with their product in the installation instructions.
Like any job it can be done with the (good, fast, cheap) conundrum in effect. Typically the manufacturer is trying to give you the best chance for success with their product in the installation instructions.
Last edited:
K'ledgeBldr
Well-known member
That doesn't sound right at all.
Your thinking would be correct. Don't know what manufacturer you're using, but here's Solatubes' installation pdf-
http://www.solatube.com/sites/defau...ons-previous-160-290-english-pre-oct-2010.pdf
As you can see they CLEARLY state AND diagram the the flashing under the shingles in the upper part of the plane and exposed on the lower area.
Your thinking would be correct. Don't know what manufacturer you're using, but here's Solatubes' installation pdf-
http://www.solatube.com/sites/defau...ons-previous-160-290-english-pre-oct-2010.pdf
As you can see they CLEARLY state AND diagram the the flashing under the shingles in the upper part of the plane and exposed on the lower area.
redmondjp
Well-known member
On an existing roof, there is no need to remove any shingles. You can anchor the tube flashing on the downside and seal the fastener heads with roofing cement.
Kpaige
Well-known member
Completely incorrect.
Think like a raindrop!
You want the shingles under on the down slope and over on the up side.
When water hits the back imagine the line it will follow you want it to go from shingle to skylight flange back onto shingle.
Good rule of thought is 50 % under the bottom and 50% over the top.
Think like a raindrop!
You want the shingles under on the down slope and over on the up side.
When water hits the back imagine the line it will follow you want it to go from shingle to skylight flange back onto shingle.
Good rule of thought is 50 % under the bottom and 50% over the top.
redmondjp
Well-known member
Completely incorrect.
Think like a raindrop!
You want the shingles under on the down slope and over on the up side.
When water hits the back imagine the line it will follow you want it to go from shingle to skylight flange back onto shingle.
Good rule of thought is 50 % under the bottom and 50% over the top.
What are you referring to that is incorrect/
Yes, you want the shingles under on the bottom and over on the up side.
There is no need to remove any shingles to do that, other than what gets cut out when the hole is made.
Kpaige
Well-known member
I was refering to the original directions.
I have put hundreds if not thousands of skylights and sun tubes in.
I have put hundreds if not thousands of skylights and sun tubes in.
Yes, you want the shingles under on the bottom and over on the up side.
There is no need to remove any shingles to do that, other than what gets cut out when the hole is made.
This is how I installed mine.
Just a quick note, I got mine from Lowes. I went online and looked and in the store they only carried the BASE models. For a minimal amount more I ordered units that carried a better wind/storm rating and had them delivered to the store. The tube extensions were the same for either unit. They really helped add light to the house.
Tom
Nowater
Well-known member
How about on a metal roof? Anyone have any experience there?
K'ledgeBldr
Well-known member
How about on a metal roof? Anyone have any experience there?
Yes.