Roof & Gutter Sealant

A reliable roof and gutter sealant is one of those things you don’t think about until you’re staring at a damp ceiling or a gutter pouring water down the fascia. This butyl based formula bonds fast and seals permanently, giving you a weatherproof result on the first go. No waiting around for a second coat, no hoping it holds through the next downpour. It goes on black, stays black, and stays put.

Butyl rubber has been used in roofing applications for decades, and for good reason. It stays flexible after curing, which matters on a roof where thermal movement is a constant factor. A rigid sealant will crack. This one moves with the substrate rather than fighting it, which is why it holds up over time rather than failing at the edges after the first hard frost.

Where Roof & Gutter Sealant Gets Used

This is a proper working sealant for roofing trades and maintenance work alike. It covers the jobs that come up again and again: leaking gutters, weeping downpipe joints, flashings that have lifted, roof sheets that need bedding down, and felt laps that have started to open. The black finish blends with most roofing materials without looking like a bodge job, which is always a consideration when working on visible roof areas.

Material Compatibility

The sealant adheres well to bitumen, asphalt, roofing felt, most metals including lead and aluminium, and timber. That covers the majority of what you’ll encounter on a standard pitched or flat roof job. Whether you’re re-bedding corrugated sheets on an agricultural building or sorting a leaking parapet gutter on a commercial premises, the same cartridge does the work.

At 310ml it fits a standard applicator gun, so there’s no faff with specialist equipment. For anyone doing regular roofing or maintenance work, the box quantity of 12 makes sense on cost. This is a straightforward roof and gutter sealant that earns its place in the van without needing much of an introduction.