At Metropolitan Insulation, we don’t just recommend waterproofing systems — we install them. Our team specialises in fitting Gaco waterproofing solutions for roofs, walls, and specialist applications across the UK. With hands-on experience in the full Gaco range — from silicone roof coatings and acrylic base coats to emergency repair systems and liquid-applied membranes — we make sure every installation is carried out to the highest standard.
Flat Roof Waterproofing Solutions
Flat roofs have a tough job to do. They take the brunt of standing water, constant sunlight, and the natural wear and tear of aging materials. That’s why Gaco’s silicone-based systems are such a reliable choice—they form a seamless, fully bonded waterproof layer that stays flexible and strong, even in extreme conditions.
Why choose Gaco for your flat roof?
- Long-lasting protection for a wide range of surfaces, including asphalt, felt, GRP, PVC, concrete, and EPDM.
- Performs far better than traditional felt and bitumen coatings.
- Perfect for roofs where water tends to collect.
- Cold-applied system—so there’s no need for flames or hot works.
- Backed by warranties when installed by Duratite Approved Installers.
Gaco Flat Roof Products
- GacoPro Roof Coating: 100% silicone, moisture-cured coating. Year-round application, strong adhesion, and resistance to UV and ponding water.
- GacoFlex SF2000 SeamSeal: Solvent-free silicone sealant for seams, fixings, and overlaps. Creates a smooth, watertight finish that’s UV stable and durable.
- GacoPatch: One-coat silicone sealant for multiple roof types. Permanently flexible, even under standing water, and won’t chalk, crack, or peel.
