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Roof repair guides

Metal roofs & gutters

Metal Roof Repair Videos: Seams, Screws, and Flashing

These field examples show why a metal roof leak should be traced to a specific joint or penetration. A short video demonstrates the method, but…

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Roof materials

EPDM, TPO, and Modified Bitumen: Know Your Roof

Roofing materials that look similar may need different repair products. EPDM is a synthetic rubber; TPO is a thermoplastic membrane; modified bitumen is an asphalt-based…

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Find a leak

A Practical Checklist for Finding Flat Roof Leaks

Use a repeatable inspection order: roof material, visible condition, penetrations, walls, edges, and drainage. This prevents a familiar-looking crack from distracting attention from the actual…

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Skylights

Is It the Skylight or the Roof? A Leak-Diagnosis Checklist

A ceiling stain beside a skylight can come from the unit, its curb flashing, or a nearby roof detail. Inspect those paths separately before selecting…

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Flashing & transitions

Metal Roof Edging: Finding Leaks at the Perimeter

A loose roof edge can let water run behind the gutter or beneath the membrane. Follow the edge detail from the roof surface to the…

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Drains & scuppers

Z-Gutter Filters: How They Work and What to Check

A gutter filter should protect the outlet while leaving room for water to flow. This demonstration explains the low-profile Z-Gutter Filter and why access for…

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Metal roofs & gutters

How to Repair a Metal Roof Seam Leak

A leaking overlap needs secure metal and clean bonding surfaces before sealant is applied. The demonstration follows a seam repair using Turbo Poly Seal and…

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Drains & scuppers

Five Checks for a Better Flat Roof Drain

Drain performance depends on location, roof slope, the inlet, the outlet pipe, and maintenance access. The animation on this page shows why a drain placed…

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Turbo Poly Seal

Turbo Poly Seal: Uses, Limits, and Repair Examples

Turbo Poly Seal is a brush-applied sealant used with polyester fleece for selected roof seams, flashing, masonry, and metal repairs. Material identification comes first: it…

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Super Silicone Seal

Super Silicone Seal: EPDM, Glass, and Metal Repairs

Super Silicone Seal is Bergstrom's recommended product for EPDM rubber repairs and is also used on glass and metal. A sound surface, dry preparation, and…

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Find a leak

How to Find a Flat Roof Leak Before Repairing It

The damp spot inside a building is a clue, not necessarily the entry point. Start with measurements and inspect nearby walls, flashing, curbs, drains, and…

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Materials & products

Turbo Poly Seal or Super Silicone Seal: Which Should You Use?

Choose a repair product by the material it must bond to, the existing coating, and the shape of the repair. Both products have specific uses;…

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Turbo Poly Seal

Applying Turbo Poly Seal with Polyester Fleece

A reinforced Turbo Poly Seal repair is built while the first coat is still wet. Cut the fleece first, stir the sealant thoroughly, and work…

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Find a leak

Why Flat Roofs Leak: Details Worth Checking First

A flat roof is a system of membranes, walls, drains, and penetrations. A small failure at a transition can admit water even when the open…

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Roof systems

Roof Recover or Tear-Off? Lessons from a Torch-Down Project

An existing roof can sometimes remain beneath a new assembly, but recover suitability must be established first. The archived project illustrates an approach used on…

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Skylights

Skylight Leaks on Metal Roofs: Frame or Flashing?

On a metal roof, the leak may be at the skylight glazing, the frame, or the transition into the roof panels. Identify which surface must…

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Chimneys

Chimney Repair Guide: Crown, Masonry, and Flashing

Inspect a chimney from the top down. A cracked crown or open masonry joint can let water enter above sound roof flashing, so sealing only…

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Roof systems

Torch-Down Installation Video: Preparation and Flashing

This archived installation shows how much work happens before the cap sheet goes down. Siding, curbs, edges, and other transitions determine whether the finished assembly…

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Protective finishes

Choosing Silver Coating for an Asphalt-Based Roof

Silver coating is a protective finish for compatible asphalt-based surfaces. It does not replace a seam repair, secure loose flashing, or repair wet decking. Choose…

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Roof systems

Torch-Down Repair Case Study: Scuppers and Parapets

The photos from this Queens project show how several small detail failures can combine into repeated leaks. Excess tar concealed poor scupper transitions, irregular coping…

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Roof materials

How to Repair a Rubber Roof: Start with Identification

The words rubber roof are often used loosely. A repair appropriate for modified bitumen may be unsuitable for EPDM. Confirm the membrane, assess its condition,…

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Protective finishes

Silver and Aluminum Roof Coatings: What They Actually Do

An aluminum roof coating can provide a reflective protective finish on a compatible asphalt roof. Its appearance should not be confused with proof that leaks…

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Skylights

Skylight Repair Guide: Diagnose the Leak First

A skylight has several potential leak paths: glazing seals, frame joints, curb flashing, and the surrounding roof. Repairing the wrong layer can hide evidence while…

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Drains & scuppers

Which Drainage System Fits Your Flat Roof?

Internal drains, scuppers, and gutters serve different roof layouts. The useful question is whether the system removes water from this roof and provides a suitable…

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Roof systems

Commercial Roof Repair: What an Installation Video Can Teach

This example focuses on preparation around an existing roof. The same lesson applies to small repairs: a patch must connect to sound flashing and membrane,…

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Roof materials

Three Common Flat Roof Membranes and Their Repair Needs

EPDM, TPO, and modified bitumen differ in composition, seam construction, and repair compatibility. Understanding those differences is more useful than treating every flexible sheet as…

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EPDM roofs

When an EPDM Roof Needs More Than Another Patch

Repeated seam failures, soft areas, or fasteners showing through the membrane can indicate problems beyond a single surface leak. An EPDM-compatible sealant cannot restore wet…

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Super Silicone Seal

Repairing Metal Roof Details with Super Silicone Seal

Super Silicone Seal can be used for compatible metal roof details with polyester fleece. The field example emphasizes a reinforced joint rather than relying on…

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Metal roofs & gutters

Metal Roof Recovery: Repair the Defect Before Coating

A targeted metal roof repair begins by exposing the condition of the seam or flashing. Covering an old patch without checking for rust or loose…

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Skylights

Leaking Skylights: Glazing Seals and Curb Flashing

The skylight unit and the curb-to-roof connection are separate parts of the weather barrier. Dirt at step flashing, a damaged glazing seal, or loose membrane…

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Metal roofs & gutters

Metal Roof Maintenance: Where to Look for Leaks

Metal roof leaks often concentrate at laps, penetrations, and fasteners. Inspect the condition of the metal as well as the sealant, especially where old patches…

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