Gaco
Gaco roof and deck coatings for silicone waterproofing, elastomeric top coats, primers, and repair products. Gaco Western was founded in 1955 and is known for silicone roofing and waterproofing systems; products are made in Waukesha, Wisconsin. This brand collection covers Gaco products currently in the store.
Per Gaco product materials, GacoRoof is a 100% silicone roof coating that forms a seamless membrane to seal and repair roofs and resist leaks and ponding water on flat and sloped roofs, including homes, garages, patio covers, sheds, barns, mobile homes, and RVs. GacoDeck lines cover liquid-applied deck coatings and primers for pedestrian surfaces. GacoPatch is a flashing-grade silicone roof patch for one-step repairs on many substrates. LiquidRoofTape and RoofTape support seam detailing with high-build liquid or self-adhesive fleece-backed tape options.
| Line | Best for | What we carry | Notes (maker) |
|---|---|---|---|
| GacoRoof GR16 | Silicone roof coating membranes | GR16 Series silicone roof coating white gallon | Single-component elastomeric silicone; resists ponding water |
| GacoDeck | Deck waterproofing systems | GacoDeck primer gray gallon; water-based elastomeric top coat oyster gallon | Primer improves topcoat adhesion; top coat for pedestrian decks |
| GacoPatch / tapes | Flashing, seams, and localized repairs | Silicone roof patch (gray/white), LiquidRoofTape, RoofTape 2 in | Flashing-grade silicone patch; fleece-backed and liquid seam options |
Shop related: Deck Stain & Outdoor Wood, Seal-Krete, Flood, and the deck staining cart.
FAQ
What is GacoRoof?
Gaco describes GacoRoof as a 100% silicone roof coating that creates a seamless membrane to seal and repair roofs and protect against leaks and ponding water.
Can Gaco coatings go on decks too?
Yes. GacoDeck primer and elastomeric top coats are made for pedestrian deck waterproofing systems. Follow the product data sheet for substrate and system steps.
When do I use GacoPatch?
Maker materials position GacoPatch as a flashing-grade silicone roof patch for one-step repairs on many substrates before or with silicone coating systems.
Is Gaco only for commercial roofs?
Gaco lists residential and light-building uses such as homes, garages, patio covers, sheds, barns, mobile homes, and RVs alongside larger buildings.
Gaco Water-Based Elastomeric Top Coat Oyster Gallon
Gaco
Original price
$193.00
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$193.00
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$193.00
$193.00
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$193.00
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$193.00
Gaco Water-Based Elastomeric Top Coat Oyster Gallon Conquer your weekend deck project with GacoDeck Top Coat in Oyster. Elastomeric deck coating fo...
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Original price
$193.00
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$193.00
Original price
$193.00
$193.00
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$193.00
Current price
$193.00
GacoDeck Primer, Gray, Gallon
Gaco
Original price
$141.92
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$141.92
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$141.92
$141.92
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$141.92
Current price
$141.92
GacoDeck Primer, Gray, Gallon is intended for exterior use. Features Single-component Improves topcoat adhesion Non-flammable and non-combustible ...
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Original price
$141.92
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$141.92
Original price
$141.92
$141.92
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$141.92
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$141.92
GacoRoof GRT50 RoofTape, 2 Inch
Gaco
Original price
$62.94
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$62.94
Original price
$62.94
$62.94
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$62.94
Current price
$62.94
GacoRoof GRT50 RoofTape, 2 Inch is intended for exterior use. Features Self-adhesive Fleece backing Conforms to roof surface Puncture and tear res...
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Original price
$62.94
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$62.94
Original price
$62.94
$62.94
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$62.94
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$62.94
GacoPatch Silicone Roof Patch, White, 2 Gallons
Gaco
Original price
$272.28
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Original price
$272.28
Original price
$272.28
$272.28
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$272.28
Current price
$272.28
GacoPatch Silicone Roof Patch, White, 2 Gallons is intended for exterior use. Features Flashing-grade silicone One-step patch on many substrates No...
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Original price
$272.28
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Original price
$272.28
Original price
$272.28
$272.28
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$272.28
Current price
$272.28
GacoPatch Silicone Roof Patch, Gray, 2 Gallons
Gaco
Original price
$272.28
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Original price
$272.28
Original price
$272.28
$272.28
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$272.28
Current price
$272.28
GacoPatch Silicone Roof Patch, Gray, 2 Gallons is intended for exterior use. Features Flashing-grade silicone One-step patch on many substrates No...
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Original price
$272.28
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Original price
$272.28
Original price
$272.28
$272.28
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$272.28
Current price
$272.28
Gaco LiquidRoofTape GRF1625, Light Gray, Gallon
Gaco
Original price
$168.00
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$168.00
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$168.00
$168.00
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$168.00
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$168.00
Gaco LiquidRoofTape GRF1625, Light Gray, Gallon is intended for exterior use. Features High-build liquid seam tape Microfiber reinforced Light main...
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Original price
$168.00
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$168.00
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$168.00
$168.00
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$168.00
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$168.00
GacoRoof GR16 Series Silicone Roof Coating, White, Gallon
Gaco
Original price
$113.84
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$113.84
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$113.84
$113.84
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$113.84
Current price
$113.84
GacoRoof GR16 Series Silicone Roof Coating, White, Gallon is intended for exterior use. Features Single-component elastomeric silicone Resists pon...
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Original price
$113.84
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Original price
$113.84
Original price
$113.84
$113.84
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$113.84
Current price
$113.84