Roof Leak – Fix One-Type by Double Sealing the Vent Pipes

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On the roof’s rear side of a home the extremely flexible rubber seal and flashing surrounding the pipe for draining plumbing are usually replaced after it is time to replace the roofing. But, the seal can become dry and cracking, and fall in pieces, and leak when the roof is replaced. One method of preventing this leakage , without replacing the roof’s shingles to strengthen the vent seal. The earlier this task is completed the better leak-proofing is The Weather Protection Company.

What is a plumbing drainage pipe?

The majority of bathrooms have drainage vent pipes that run into the walls of the homes as well as attics and roofs to counteract the fluctuations in pressure that are caused by flushing toilets. The vents that equalize pressure prevent backups and other issues. A bathroom with only one room will only have one vent pipe. A house with multiple bathrooms has multiple vents, based on the area where bathrooms are situated. If you look up through the roofs of the home it is evident that these vents typically appear as exposed pipes of 1-to-4 inches in diameter hanging vertically from the roof, extending at least six inches. The seals and flashings are situated at their shingle-level base.

What exactly is vent-pipe flashing.

The flashing for vent-pipes is rectangular sheeting that has a raised oval crown that is centered on the seal of a circular rubber and a pipe-hole placed on top of the crown. The flashing is positioned over the pipes prior to roofing is put on its base. The majority of the flashing is made of thin aluminium or hard-plastic sheets. The flexible rubber seal that is on the over the top is able to fit snugly around the pipe pressing it down. This seal blocks rain water from spilling downwards into the pipes.

The issue?

The scorching sun dries out the seal of rubber that is then cracked and breaks, leading to leakage. The damaged seal lets rainwater leak into the outside from the vent pipe which in turn damages and discolors the interior walls and ceilings close to it.

The solution.

If you catch it before it is too late, applying stretchable caulk on the seal’s component will fix it for a time. But, once the damaged seal starts to break up into pieces and the caulk begins to break, it could be loosened and cause significant leakage. The most effective and professional way to repair the seal is to use a double-up. The repair can be done by removing the crown-and-seal from a brand new flashing and then putting it over the existing crown-and-seal that is already installed. A new flashing is sold in the majority of major hardware stores for around $5. Certain plastic flashings come with a high crown and a heavy-duty seal that can aid in the repair by overlapping. Furthermore, this second-layer could be put in place long before the seal’s initial one starts to leak or dry and provide additional protection. It can also be installed early

Typically, in order to fix the leaky seal of a vent pipe then the entire flashing must be removed first. This requires removing all the shingles that surround the base of the flashing, replacing them once the new flashing is put in place. However, if a second crown and seal is placed on top of the previous one, as described in the previous paragraph, the bottom of the crown will be able to fit into or around the flashing base that was previously installed. Then, it will be seal for a strong waterproof attachment. The shingles do not need remove, making the repair quick, efficient and cost-effective.