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Metal Roof Leaks can be repaired permanently without any mess

Seams on a metal roof start to leak due to the fasteners loosening up. We removed the old bolts and replaced them with new pan head screws before we applied Turbo Poly Seal

We have many videos on how to repair leaky metal roofs, including skylight leaks, vent flashing leaks, and metal seams. Never use tar or caulking to attempt any repairs on metal roofs. Caulking dries out and doesn’t last.

When repairing leaks on metal roofs, you need to use a product that will adhere to metal, and that is flexible so that it would not crack during the expansion and contraction of the seams. Watch these videos on How we use Turbo Poly-Seal to make repairs on metal roofs and skylights that last.

How to repair Metal Roof Leaks at the seams

This video shows how we sealed the seams where to metal panels joint together. One of the most common issues on a flat roof is the seams where to metal panels overlap each other. What happens is that the neoprene washers dry out and lose the pressure that is supposed to have to force the two panels tight together. Water starts collecting around these fasteners and also between the overlapping panels causing the metal to corrode.

What we do is to remove the fasteners and replace them with a low profile pan head screw. Then we clean the area around the overlapping seams and install Turbo Poly Seal with a mesh to create a smooth transition.

See more videos on “Metal Roof recovery”.

Another method to repair skylight flashing on metal roofs is to use the Modified Bitumen Rubber membrane to make the transition. Also, watch this video on a “Metal Roof that’s gone bad”

First, we clear all the old tar and caulking from the flashing.

Metal Roof Leaks around skylights
Metal Roof Leaks around skylights

The next step we cut a modified Bitumen membrane that will fit in between the risers of the panel and overlap the flashing

Cut a rubber membrane to size to use as flashing
Fitting a rubber membrane so it overlays the panel and the skylight on a metal roof

The next step is to adhere the membrane to the metal surface. We use Karnak 81 or Karnak 66 trowel grade. We smear the Karnak the entire surface of where the rubber membrane will cover and then place the membrane in place. We then roll out all the air trapped to make sure the rubber membrane is fully attached to the metal.

This method is very effective. The rubber membrane can move and stretch with metal panels as it expands and contracts.

Attaching rubber to metal flashing
Attaching the rubber membrane to the metal with Karnak 81 trowel grade

How to repair Metal Roof Leaks around Vent Pipe flashing

The rubber boot around vent pipes on metal roofs deteriorates and needs replacement. instead of replacing it, we use Turbo Poly Seal to make the necessary repair. This method can be applied to any flashing or transition on metal roofs.

https://youtu.be/SIoJmGKsdNI

What causes a skylight to leak?

Most skylights have a metal frame that holds the glass in place. Between the metal frame and the glass is a rubber gasket. This rubber gasket shrinks and dries out. The metal frame is also not too tight and space opens up between the frame and the rubber gasket which causes water to leak through.

Can skylights be repaired effectively?

Yes, but not with caulking. Most repairs we have seen were done with caulking and that never works. We use a product called Super Silicone Seal to seal the transition between the frame and the glass.

Which is the best product to use for Metal Roof Leaks?

There are two products that are outstanding that can be used:
1. Turbo Poly Seal – this is a urethane bituminous resin composition and has excellent properties that make it adhere to almost any surface
2. Super Silicone Seal – This is a urethane base silicone and is super good due to being white and very flexible
Super Silicone half gallon
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