Materials & assemblies · 5 MIN READ
A Flat Roof Still Leaks After Several Patches
Repeated patching without a durable result is a reason to reopen the diagnosis.
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Good questions. Better roof decisions.
Roof leaks, overflowing gutters, uncertain bids. Understand the problem before you choose the fix.
Built from questions in Reddit discussions and checked against technical and official sources. Read our approach.
100 guides · page 2
Materials & assemblies · 5 MIN READ
Wrong Repair Material on a Membrane Roof
When an unknown tar, coating or sealant has been applied to a membrane roof, identify both the original roof and the repair material before choosing the next step.
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Materials & assemblies · 5 MIN READ
Coating a Flat Roof: What Must Be Sound First
A roof coating should be evaluated as part of a rehabilitation system, not as proof that an existing roof is dry, stable or properly drained.
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Materials & assemblies · 5 MIN READ
Tile Roof Leaks with Intact Tiles
Intact-looking roof tiles do not rule out a leaking roof assembly.
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Materials & assemblies · 6 MIN READ
Comparing Tile Underlayment Proposals
Compare tile underlayment proposals by the exact product, approved application, layer arrangement, roof geometry and detail scope.
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Materials & assemblies · 5 MIN READ
Lift and Reset or Replace a Tile Roof?
Lift-and-reset work removes tiles so underlying roof components can be renewed, then returns suitable tiles to service.
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Materials & assemblies · 5 MIN READ
Planning Roof Work Before Solar Panels
Before installing solar, assess the roof assembly that will become harder to access beneath the equipment.
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Materials & assemblies · 5 MIN READ
Metal Roof Oil Canning: Appearance or Performance Problem?
Oil canning is visible waviness in metal panels.
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Materials & assemblies · 5 MIN READ
Metal Roof Penetrations Across Panel Ribs
A pipe through a profiled metal roof needs a flashing detail suited to the panel shape and the penetration.
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Materials & assemblies · 5 MIN READ
Metal Roof Fasteners and Thermal Movement
Exposed-fastener and concealed-clip metal roofs should not receive the same repair assumptions.
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Roof condition & care · 5 MIN READ
Granules in the Gutter: Is the Shingle Roof Failing?
Granules in a gutter are an observation, not a diagnosis of roof failure or hail damage.
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Roof condition & care · 5 MIN READ
Lifted or Sliding Shingles: What an Inspection Should Establish
Lifted edges or sliding shingles call for an inspection of attachment, bonding and the supporting surface.
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