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ROOFING INSPECTION & REPAIR
AMERICAN CEMWOOD ROOFING
BEST ROOFING PRACTICES
BUILT UP ROOFS
CATHEDRAL CEILING VENTILATION
CERTIFICATIONS for ROOFING CONTRACTORS
CHIMNEY FLASHING Mistakes & Leaks
COLD WEATHER ROOF TROUBLE
DECKS, ROOFTOP CONSTRUCTION
EPDM, RUBBER, PVC ROOFING
EXTRACTIVE BLEEDING on SHINGLES
FIRE RETARDANT PLYWOOD
FLASHING on BUILDINGS
FLAT ROOF MOISTURE & CONDENSATION
Green House or Solarium Roof Leaks
HEAT TAPES & CABLES for ROOF ICE DAMS
ROOF ICE DAM LEAKS
MASONITE WOODRUF FIBERBOARD ROOFING
NOISE CONTROL for ROOFS
PLASTIC ROOFING TYPES
PVC, EPDM, RUBBER ROOFING
ROOF ARCHITECTURAL STYLES - PHOTO GUIDE
ROOF CLEANING RECOMMENDATIONS
ROOF COLOR RECOMMENDATIONS
ROOF INSPECTION SAFETY & LIMITS
ROOF LEAK DIAGNOSIS & REPAIR
ROOF NOISE TRANSMISSION
ROOF REPLACEMENT SNAFUs
ROOFING FELT UNDERLAYMENT REQUIREMENTS
ROOFING MATERIALS, Age, Types
SADDLE CONSTRUCTION at CHIMNEYS
SNOW GUARDS & SNOW BRAKES
STANDARDS for ROOFING
STRESS SKIN INSULATED PANELS
TEST LABS - ROOF SHINGLE
TREES & SHRUBS, TRIM OFF BUILDING
TRUSSES, Floor & Roof
UNDERLAYMENT REQUIREMENTS on ROOFS
VENTILATION in BUILDINGS
WALK-ON ROOF SURFACES
WARRANTIES for ROOF SHINGLES
WORKMANSHIP & ROOF DAMAGE
This article explains how to identify spliced asphalt roof shingle defects: an unusual asphalt shingle product defect. We provide photographs and we name four clues that can identify this potential roof leak, and we contrast this defect with other types of asphalt roof shingle wear or failures. Photos here can help identify shingle splice failures on roofs.
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Splice Shingles used to keep material moving during the manufacturing process should be discarded but they almost always end up installed on the roof.
Spliced asphalt shingles are a factory defect - and were not supposed to have been installed.
The occurrence of spliced shingles on an asphalt shingle roof will be rare and multiple spliced-shingles quite rare.
This defect is very unlikely to be a substantive roofing defect though if the splice is left un repaired a local leak and related water damage could occur.
Repair for a Spliced Roof Shingle Failure
Because these shingle wear spots or potential leaks are almost always individual and limited roof defects, we recommend simply replacing the damaged shingle with a new shingle.
Temporary roof repair to prevent roof leaks at a splice-shingle can be made by sliding a piece of metal flashing under the damaged area.
4 Visual Clues Confirm Splice-Shingle Damage on Roofs
Spliced shingle substrate materials can show up on both organic asphalt shingle roofs (photo above) and fiberglass-based substrate asphalt shingle roofs (photo below).
An individual defective roof shingle such as a splice-shingle (shown above and at below left) is not a significant roof defect - though of course if left unattended and the roof leaks, significant water damage could occur.
Therefore, where a spliced roof shingle is observed, repair is needed, but it's unlikely that many "splice shingles" will appear on any individual building roof.
We find a common point of recognition for splice-shingle defects on roofs: they tend to be isolated - just one will appear in the field of most roofs, because not many of these shingles end up in an individual shingle shipment or pallet.
And if you look closely at the damaged shingle you'll see a combination of three visual clues and there may be a fourth hidden clue:
Defective Individual Shingles are Independent of But May Accompany More Significant Defects on Shingle Roofs
Watch out: a minor individual defective shingle such as a splice unit (above) might also appear on a roof with more serious problems. Below, the picture of thermal splitting or tearing damage to a laminated asphalt shingle roof was provided by ASHI Home inspector Steve Mauer and photographed in 2009.
And at below right you can also see that this unfortunate roof, also suffered from granule loss (below-right) that in our OPINION looked like a defective product.
The same roof also included a damaged shingle that looked like a cracking and granule loss problem combined, but we think this was a shingle splice created at the factory during production - a bad individual shingle that is sometimes created when ends of shingle production substrate are spliced together. See CRACKS in FIBERGLASS SHINGLES for the shingle problem at left, and see GRANULE LOSS from SHINGLES for the shingle problem at right.
This asphalt shingle roof article series explains how to identify & explain the most-common asphalt roof shingle failures and how to obtain asphalt roofing shingle failure claims assistance. By listing common causes of asphalt roof shingle failures and how to recognize them, building owners and roofing contractors may also be able to reduce the occurrence of asphalt roof shingle storage, handling, and installation errors that affect roof life.
Readers are also invited contribute roof failure information to the web author for research purposes. CONTACT us to contribute photos or ask questions about roof failures.
Frequently Asked Questions (FAQs) about spliced shingles on asphalt shingle roofs
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