Case Study: Washington Roofing uses new Polyurethane Basecoat with Silicone Topcoat!

Roof History

Bailey Hall at Fort Scott Community College was experiencing roof seam leaks. The Modified Bitumen roof was starting to alligator where past repairs had been made with asphaltic material.

Before image of Mod Bit Roof

The Solution

Washington Roofing & Insulation chose to use the ultimate Volatile Free, Inc. Roofing System. This includes:

  1. VFI-#11 Water Based Epoxy Primer
  2. VFI-727 Polyurethane Spray Foam
  3. VFI-3600 Polyurethane Basecoat
  4. SEALGUARD VFI-990 SILICONE

The Installation

Washington Roofing & Insulation used VFI-727 Polyurethane Spray Foam around the perimeter of the roof, roof units and all protrusions.  They then treated every seam with VFI-3600 Polyurethane Base Coat for the best security and to make them water tight. Last, they coated the roof with UV Stable High Solids SEALGUARD VFI-990 SILICONE.

VFI-727 sprayed around perimeters and VFI-3600 applied on all seams

The Result

This roof had been leaking for quite some time into the classroom below. This system stopped all leaks, restored integrity to the roof and saved the college a costly tear off.

VFI-990 topcoat over VFI-3600, VFI-727 and VFI-#11

Product Information

VFI-#11 Water Epoxy is a general purpose, two component, water based, epoxy primer. It provides excellent adhesion and superior strength to most metal, mod bit/BUR single-ply, concrete and wood.

VFI-727 Polyurethane Spray Foam is a spray applied, polyurethane, roofing insulation foam. When combined with SEALGUARD VFI-990 SILICONE, it forms a superior barrier that can extend an existing roof’s life. VFI-727 Polyurethane Spray Foam is UL certified.

VFI-3600 Polyurethane Basecoat is a two component, aromatic polyurethane coating that forms a tough elastomeric membrane, that provides waterproofing and impact resistance when applied to the existing roof substrate.

The SEALGUARD VFI-990 SILICONE is a cool roof coating and is UL, Energy Star, Miami Dade, and T24 certified. SEALGUARD VFI-990 SILICONE is also a single component, high solid roof coating. It forms an elastomeric, waterproof, white membrane that protects your roof from water damage and UV deterioration.

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