Everbuild Everflex Roof and Gutter Sealant – Butyl-Based Sealant and Adhesive for Roofing – Black – 295ml
Rated 4.5 / 5780 ratings on Amazon →
Pros
- Butyl-based formula gives instant, permanent weatherproofing on roofing joints
- Adheres to bitumen, asphalt, felt, metal and wood
- Excellent weathering properties for long-term outdoor use
Cons
- Black colour only — not discreet on lighter roofing materials