Shingle Roof Repair

Sumner Roofing repairs shingle roofs.

Slipping: Delaminating / Sliding

Shingles may delaminate and slide. This is caused by improper fastening. Shingles are designed to be nailed in a specific area, increasing wind resistance and ensuring that both parts of the shingle are attached to the roof. Today’s shingles are constructed in two parts. The “base” and the “dragon tooth” overlay. When fasteners do not […]

By |April 4th, 2012|Shingle Roof Repair|0 Comments

Torn/Cracked/Broken Surface

Often in high wind events we see the corners of shingles tear. This is common on contractor grade shingles. Sometimes a tree branch or flying debris may impact a shingle causing damage. 3rd party damage is another issue. As people walk across the roof they can cause damage. Damaged shingle leave the underlayment showing, accelerating […]

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Roof Recovered

Often used as a way to escape the costs associated with replacing flashings, installing new underlayments and saving labor for tear-off shingle recovers offer an option. We have found shingle recovers cause rapid wear of the primary roof system as they trap moisture and “bake” the original roof. Without replacing flashings, there is no way […]

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Offset Not Correct

Shingles are not a waterproofing material. When installed correctly, they do “shed” water. However, if installed on a flat roof, they would allow massive seepage. The way shingles work is by their overlapping design. As the previous layer is covered by the next it creates a stair step water shed design, disallowing seepage. This stair […]

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Improper Number of Fasteners

Shingles are designed to be installed using special wide head roofing nails. Each shingle has a designated “nail line”. If shingles are fastened outside the nail line the manufacturer’s warranty is voided and the roof assembly is out of code. This also leaves the roof susceptible to roof blow-off in the event of strong winds. In […]

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Improper Roofing Fastener Installation

It is important that all fasteners are installed perpendicular to the roof’s surface and driven in at a perfect 90 degree angle. Shown are areas where the roofing fasteners were not driven straight in and the fastener heads are lifted slightly. Over time this can and will damage the roof system and allow seepage.

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Improper Fastener Type

When two different types of metals come in contact a chemical reaction occurs: Electrolysis uses moisture as catalysis at a molecular level to pass ions from one metal to the other. The process causes a deterioration of both metals similar to the effects of rust. Using the wrong type of fasteners causes a real concern […]

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Roof Fasteners Uplifting

During roof installation it’s easy for installers to forget about proper pressure setting on their nail guns. In most cases too many nailers are hooked up to a low volume compressor and the air supply is not sufficient to drive each fastener fully. At time of installation only the severe “high nails” are noticeable. When […]

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Blown Off Cap

The most susceptible area on a roof to wind damage is the cap. Cap shingles are used to cover the hip and ridge areas of two adjoining decks. Most installers simply use a 20-years 3-tab shingle, cut into pieces and placed in this area to act as cap and save money. Each manufacturer makes specially […]

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No Starter Strip

Starter strip shingles are used to seal the first row of perimeter shingles and prevent wind uplift. When starter strip shingles are omitted or not installed correctly strong winds have an opportunity to lift the first row of shingles and cause the “domino effect”. This has led to entire roofs being blown of during hurricanes. […]

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Flat Tie-In not Sealed Properly

The junction between your pitch roof and the flat roof is called the “tie-in”. This area is specifically important because there are two different roofing materials joining. It is also very important that the two roof systems have the correct flashing detail and extra sealant protection

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Backwater Laps

When installing a shingle roof system it is important to always start at the lowest point and proceed upward toward the roof’s peak. This ensures that each layer of materials overlaps the previous. Even on flat roofs, this principle is important. As water travels, on a pitch or on a shingle roof, if two seams […]

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Punctures In Roof

Flying debris, animals and old rooftop items can all cause holes in the roof. Punctures are major concern because there are no roofing materials protecting the building from water intrusion.

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Flashings Inspection

Flashings are the most important part of any roof system. Specially designed for their unique applications, flashings bridge transition areas and prevent seepage.

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Rusted Flashing

Steel metal flashings exposed to the elements can rust over time. Today’s flashings are made of galvanized metal, a process that protects the steel core from rusting. I have found rusted flashings on this Mufreesboro roof. Rust cannot be simply sealed over, as it will continue to grow. The rust needs to be cut out and […]

By |April 4th, 2012|Flashings Inspection, Shingle Roof Repair|0 Comments

No Sealant at Flashings

Although flashings bridge transitions in the roof, when not sealed properly they are ineffective. Flashing is designed to turn corners and breaks in a roof, which tend to have more movement than other areas. If not sealed properly, these flashings do little to stop water from entering the roof system. This is allowing water to […]

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Valley Metal Buckling

Valley metal is installed by crimping the valley center, fastening the entire length of both edges and then applying mastic to cover the valley metal edge and fasteners. When valley metal is not properly pressed, fastened and/or sealed it causes buckling and waving. Since a valley is designed to channel water between two pitch areas […]

By |April 4th, 2012|Flashings Inspection, Shingle Roof Repair|0 Comments

Gable End Flashing Not Correct

Gable ends are where a valley terminates into a roof’s surface, rather than running the entire length to the roof’s edge. They are quite common and add to the roof’s design. However, if not correctly detailed with flashings and sealants, the gable end is an area of concern. With the valley channeling large amounts of […]

By |April 4th, 2012|Flashings Inspection, Shingle Roof Repair|0 Comments

Boot Lapped / Sealed Correctly

As with all roof-top objects it is important that proper water flow and installation are considered. Flashing that is not layered correctly and sealant applied in the right junction areas allow water seepage. The boot flange was not installed correctly with the proper overlap procedure on this Hendersonville roof. Sealant has done a good job covering […]

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Vent Not Lapped / Sealed Correctly

As with all roof-top objects it is important that proper water flow and installation are considered. Flashing that is not layered correctly and sealant applied in the right junction areas allow water seepage. The vent flange on this Westmoreland roof was not installed correctly with the proper overlap procedure. Sealant has done a good job covering […]

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Plastic Boots Used

As you know, plastic typically dries out rather quickly in our environment. The sun’s UV rays cause oil migration much the same as it does to exposed asphalt. In this case a plastic stack flashing was used to seal the pipe. A gap between the pipe and surrounding flashing is visible and allowing seepage. The […]

By |April 4th, 2012|Flashings Inspection, Shingle Roof Repair|0 Comments

Ell Flashing Not Sealed Properly

Ell flashing bridges the transition from the roof’s surface and a wall or upright surface such as a curb. The ell flashing has not been sealed properly and the shingles are pealing back from the flashing allowing seepage. This can be correctly by removing the area and installing mastic sealant correctly. New membrane may need […]

By |April 4th, 2012|Flashings Inspection, Shingle Roof Repair|0 Comments

No Ell Flashing Installed

Whenever a roof surface meets a vertical surface ell flashing is needed to bridge the transition and protect from seepage. On this Franklin roof we found no ell flashing was installed at this detail. Although sealant may have helped avoid leaks, over time sealant breaks down. The correct technique is to install ell flashing here.

By |April 4th, 2012|Flashings Inspection, Shingle Roof Repair|0 Comments

Ell Flashing Uplifting

Ell flashing should be nailed every six inches on center. On a Pasquo roof I found the ell flashing uplifted. Not enough fasteners were used and the sealant has deteriorated. We suggest sealing the underside of the ell flashing and installing the correct number of fasteners as specified by code. Another layer of membrane or shingle […]

By |April 4th, 2012|Flashings Inspection, Shingle Roof Repair|0 Comments

Ell Flashing Behind Wall Surface

Ell flashing is designed to bridge the roof to wall transition and allow for protection against water intrusion. Water which runs down the roof and wall is caught by the ell flashing and channeled to the roof’s edge. It is important that the ell flashing’s end be flared so it sticks out past the siding/stucco. […]

By |April 4th, 2012|Flashings Inspection, Shingle Roof Repair|0 Comments

Fasteners In The Valley

Since a valley is designed to channel water between two pitch areas a valley receives more water flow than any other part of the roof. A standard installation guideline on all roof systems is to never install fasteners in the valley’s center. Exposed valley fasteners disrupt the immediate flow of water. Because valleys are transition […]

By |April 4th, 2012|Flashings Inspection, Shingle Roof Repair|0 Comments

Flashing Seams Separating

Flashing seams must be overlapped correctly and an adequate amount of sealant placed in between the overlap area to ensure proper waterproofing at the ell flashing transition area. Ell flashing seams were separating here and in need of additional sealant. The correct way to repair this area is to replace the flashing with new. That […]

By |April 4th, 2012|Flashings Inspection, Shingle Roof Repair|0 Comments

No Wall Cap / Coupling

Separation fire walls are designed to extend past the roof level and protect against spreading flames in the unlikely event of a fire. Many times these walls are simply stuccoed and painted. Over time the paint deteriorates, often at rates faster than walls due to the direct sunlight they receive, and allow moisture to seep […]

By |April 4th, 2012|Flashings Inspection, Shingle Roof Repair|0 Comments

Off Ridge Vents Not Angled

Vents are installed on the roof to allow for attic airflow. These vents should not be longer than four feet in length and should be installed at an angle. As water flows down the roof it often is blocked behind the vent creating a small area of water ponding. Ponding water is water sitting on […]

By |April 4th, 2012|Flashings Inspection, Shingle Roof Repair|0 Comments

Pitch Transition Not Flashed

Whenever two different roof pitches transition a specially designed flashing is needed to bridge the slope change. This Nashville roof does not have the correct flashing and is relying on sealant to disallow seepage. Over time the sealant will deteriorate and allow leaks. The pitch transition on your roof does not have any flashing in […]

By |April 4th, 2012|Flashings Inspection, Shingle Roof Repair|0 Comments

Counter Flashing Loose

Counter flashing is metal flashing installed into the wall to protect the roof membrane from coming loose from the wall as it transitions from the roof area. Counter flashing can also be used in conjunction with ell flashing at the same detail area. On this Walton Oaks roof the counter flashing, which has a concealed return flashing […]

By |April 4th, 2012|Flashings Inspection, Shingle Roof Repair|0 Comments

Fair/Unfair Metals Touching

When two different types of metals, fair and unfair as they are called, come in contact a chemical reaction occurs. Electrolysis uses moisture as catalysis at a molecular level to pass ions from one metal to the other. The process causes a deterioration of both metals similar to the effects of rust. Using two different […]

By |April 4th, 2012|Flashings Inspection, Shingle Roof Repair|0 Comments

Pan Roof Tie-In Not Correct

Aluminum structures are inexpensive and easy to install. They often add value to a building by providing additional usable space. The roofing system is typically a pan or super-pan type made of aluminum and coated white. Insulation is sometimes used to help insulate and dampen rain patter. Pan roofs are large and lightweight. They are […]

By |April 4th, 2012|Flashings Inspection, Shingle Roof Repair|0 Comments

Drip Edge with Flat Shelf

Often associated with gutter installation and plumb fascia boards, perimeter drip edge flashings can create a shelf or ledge about three inches from the roofs edge. This shelf creates a flat roof area at the roof’s perimeter. Since this roof system is not a flat roof, the perimeter flashings are not designed to allow for […]

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Granules Loss

Asphalt does not hold up to direct UV exposure. Shingles use small colored stone chips called granules to protect the asphalt from environmental elements and to provide an esthetically pleasing look. Over time these granules wear off. When this occurs the asphalt surfacing starts to break down causing a downward turn in the shingle’s life. […]

By |April 4th, 2012|Flashings Inspection, Shingle Roof Repair|0 Comments

Aluminum Ridge Vent w/Nails

Aluminum ridge vents are installed across the crown of the roof to allow ventilation. Although the vent manufactures allow these vents to be installed with aluminum nails, the nails they provide are not long enough to penetrate the decking. Most roofers will simply use the same nails as they use for installing shingles. However, these […]

By |April 4th, 2012|Flashings Inspection, Shingle Roof Repair|0 Comments

Fiberglass Intermat Showing

Shingle construction starts with a fiberglass intermat. During production the fiberglass intermat is saturated with asphalt and dried repeatedly until the desired thickness is achieved. This intermat is not a waterproofing layer but is necessary to keep the shingle from cracking and separating. Over time the shingles surface wears down. Eventually the intermat will become […]

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Shingles Curling

Asphalt, an oil based product, is resistant to water and used in a wide range of waterproofing areas. Shingles are primarily asphalt in construction. Asphalt does dry-out over time. This process is called oil migration. As with most natural elements, when asphalt dries it shrinks. The shingle’s fiberglass intermat tries to prevent the shrinkage. This […]

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Wrong Shingle Valley

There are three main ways to install a shingle valley. First is the correct way, by fully lacing the low side plane through the valley so a full shingle is in the valley protecting the flashing and then the second plane is installed and cut straight with the valley center. Second it a full lace […]

By |April 4th, 2012|Flashings Inspection, Shingle Roof Repair|0 Comments

Turbine Vents Not Working

Turbines, or whirly birds ventilation units are found on many homes and can be the source of some roofing issues. In a high wind, driven rain situation water enters the vent through the vent’s “gills”. We have found bearings to be a normal maintenance item as they wear out and the vent ceases to work […]

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