Gutter, flashing and roof-detail sealing
Gutter linings, parapet copings, and metal flashing details fail at dissimilar-material joints where movement and corrosion open a water path inside.
The need for gutter, flashing and roof-detail sealing
BHI Coatings performs gutter, flashing and roof-detail sealing across Alvin and the Texas Gulf Coast. Gutter linings, parapet copings, and metal flashing all fail in the same place: where dissimilar materials meet. Movement and corrosion open a gap at the metal-to-masonry joint, and from there water tracks straight into the building. Replacing the sheet metal or reroofing the section is slow and expensive, and the joint often fails again in exactly the same spot.
How BHI Coatings does gutter, flashing and roof-detail sealing
We clean and prepare the joint, then seal the metal-to-masonry transition with a flexible cold-applied membrane, reinforced over the detail. That membrane follows the substrate's movement rather than fighting it. We do the work in place with no sheet-metal replacement, no reroofing, and no hot work, using Belzona 3111 and 3121 to seal the flashing and glazing-bar details.
Typically applied with Belzona 3111, Belzona 3121, matched to the service conditions.
Flashing, gutter, and coping details shed water again, and no metal was torn out to get there. The joints that leaked first are the ones keeping the building dry.
More Roofing & Weatherproofing applications
Roof cracks and high-movement detail areas keep working open under thermal cycling, splitting rigid coatings and reopening leak paths.
Learn more →Liquid roof membrane and leak repairBuilt-up and single-ply roofs lose their seal at penetrations and seams under UV and thermal cycling, letting water reach the substrate.
Learn more →Masonry waterproofing and protectionExterior masonry and building surfaces absorb water through porosity and cracks, driving spalling, staining, and freeze-thaw damage on the facade.
Learn more →Upstand, joint, seam and protrusion weatherproofingUpstands, seams, joints, and roof protrusions concentrate movement and standing water, so they are the first details to leak on an otherwise sound roof.
Learn more →All 5 in Roofing & WeatherproofingThe whole capability in one place, with the work grouped.
See the capability →Contact BHI Coatings
Have equipment that needs to stay in service?
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