A small garage roof can have complex connections to siding, posts, doors, and adjoining walls. These details often deserve more attention than the open area of membrane.

What to check first

  • Inspect where flashing finishes beneath siding.
  • Check door thresholds and post bases for water-entry paths.
  • Coordinate repairs with concealed wall details rather than applying sealant only to the exposed edge.

Follow the connection from top to bottom

  1. Find the upper entry point

    Inspect where flashing ends against a wall, curb, pipe, or other surface. Water entering behind that termination may bypass a patch lower down.

  2. Correct the underlying defect

    Loose metal, rotten wood, failed fasteners, and deteriorated membrane need a suitable repair before waterproofing. A surface bridge needs stable, compatible material on both sides.

  3. Keep the detail functional

    A repair should shed water without blocking outlets, weep paths, or intended movement. Use the specified reinforcement and dimensions for the product and detail.

Watch the field examples

These archive demonstrations show individual projects. Use the current guidance above and Bergstrom’s published instructions if an older video shows a different product or method. Torch work shown in installation videos is professional work.

Watch Garage Roof Details: Siding, Posts, and Door Thresholds · example 1Opens on YouTube ↗Watch Garage Roof Details: Siding, Posts, and Door Thresholds · example 2Opens on YouTube ↗Watch Garage Roof Details: Siding, Posts, and Door Thresholds · example 3Opens on YouTube ↗

From the project archive

Flat Roof Installation Torch Down- Whether we do a small roof over a garage or a big commercial roof
Historical project photo · Flat Roof Doctor
Image - Flat Roof Installation - Erik the cameraman before he took the business
Historical project photo · Flat Roof Doctor
Post Railings on a flat roof were not flashed properly
Historical project photo · Flat Roof Doctor

Product reference: Bergstrom Industries’ published knowledge catalog. Follow the latest product label and safety information. Historical project examples are educational and are not a specification for every roof.