Skylights

Skylights are great to have if they don’t leak- but a pain if they do.  Quite often the corners at the upper portion of the skylight develop gaps where water can easily penetrate causing an interior leak.  These holes can be filled with a tripolymer clear sealant (pic.1) .  Also, check the metal flashing across the top if it’s brown to make sure it is not rusting through.

Leak Problems Are Common Around Skylights
Do It Yourself Roof Repair Skylight Picture 1

This skylight requires a homemade flashing kit which is inferior to
factory kits, hence its removal (pic.2)

Repairing Shingles Around Skylight
Do It Yourself Roof Repair Skylight Picture 2

Tar and homemade flashing placement doesn’t always quite hit the spot (pic.3)

Water Damage Around Old Skylight
Do It Yourself Roof Repair Skylight Picture 3

Once the old one is out the rebuilding can begin (pic.4)

Reframing Skylight At Roof
Do It Yourself Roof Repair Skylight Picture 4

I chose a Velux brand to replace it (pic.5)

Velux makes its own flashing kit
Do It Yourself Roof Repair Skylight Picture 5

The bottom corners need to be dissembled to install the larger piece of flashing at
the bottom to get started.  Next are the sides and lastly the top piece (pics. 6-14).

Assembling New Skylight Flashing
Do It Yourself Roof Repair Skylight Picture 6

This rubber flap needs to be folded over the
flashing to waterproof across the bottom of the skylight.

Lifting rubber flap over flashing
Do It Yourself Roof Repair Skylight Picture 7

New Skylight Trim Detail
Do It Yourself Roof Repair Skylight Picture 8

Cut the top flashing piece to fit
Do It Yourself Roof Repair Skylight Picture 9

Properly installing skylight
Do It Yourself Roof Repair Skylight Picture 10

Alternate View Of Partial Skylight Repair
Do It Yourself Roof Repair Skylight Picture 11


Do It Yourself Roof Repair Skylight Picture 12


Do It Yourself Roof Repair Skylight Picture 13


Yourself Roof Repair Skylight Picture 14

Here is another skylight that depends upon tar or some other type of sealant to waterproof its installation.  Due to contraction and expansion breaking the watertight seal around it, other products are more desirable (pic.15)


Do It Yourself Roof Repair Skylight Picture 15

This is the only Velux I have ever had to replace – installer negligence.  Putting a skylight in sideways looks fine on the inside until it rains.    A 2X4 skylight is not interchangeable with a 4X2. The person who installed it …well, I guess I shouldn’t go there (pic.16).


Do It Yourself Roof Repair Skylight Picture 16

Wasco is another attractive alternative with a rubber seal to funnel water around the perimeter.  Installation is fairly simple (pics. 18-22).


Do It Yourself Roof Repair Skylight Picture 18


Do It Yourself Roof Repair Skylight Picture 19


Do It Yourself Roof Repair Skylight Picture 20


Do It Yourself Roof Repair Skylight Picture 21


Do It Yourself Roof Repair Skylight Picture 22