Bess Industries

From Troublesome Tar & Gravel to Low Maintenance Acrylic

Our Process

Problem at Hand

Bess Industries was dealing with recurring leaking around the perimeter and some skylights.

Solution Applied

Acrylic topped PolyUrethane Foam was choosen based on the specific requirements of this roof.


This new roof is, seamless, waterproof and insulates while reflecting radiant heat.

The Problem,

Bess Industries had an aging roof constructed using an antiquated roofing method known as tar and gravel. Tar & Gravel roofs, also called Built-Up roofs, comprised of alternating layers of fiberglass or felt applied with hot tar. This layer is then covered with loose gravel to protect the tar from damaging UV rays. These tar-based roofs are vulnerable to cracking and shrinkage caused by repeated heating and cooling. Cracks can randomly appear along the roof surface, allowing water to penetrate the lower layers if not completely through +as you can imagine, even the cracks that do not penetrate completely through will still speed the breakdown process.

Bess Industries contacted us because their roof had developed leaks around the drains and skylights. These are natural weak points made worse by a material prone to shrinkage. As the roofing contracted and pulled away, cracks formed, causing water leaks from rain and snow.

The Old Tar & Gravel Roof

Getting Started

Simply put, the old roof was shot and needed to go. Repairs or patches were not an option. Yet, we could not tear the old roof off, leaving the exterior exposed to the weather. To start with, we used industrial-sized vacuums to remove the loose gravel from the roof surface. Now with all the loose gravel removed, we could finally begin.

Solving The Problem

No “Bandaids” or “Quick Fixes” Here!

Bess Industries wished to go with the best possible option.

Unique Problems Require Innovative Solutions, Enter Foam Roofing.

Spay Foam Poly-Urethane Roofing was the perfect candidate for this roof. After all, nothing else can level a rough surface like 1.5 inches of closed-cell foam.

Here is what we did,

We vacuumed all the gravel off the roof and cleaned it; with the surface now properly prepped, next came the foam, 1.5 inches of high-strength closed-cell Poly-Urethane spray foam. We applied 1.9 gals of acrylic basecoat per sq on the entire roof. With the Base Coat installed all that remained to do was install the final layer. 1.9 gallons per sq of White Polyurethane Modified Acrylic Top Coat was installed, creating a waterproof and highly reflective roof surface.
Before After

Spray Polyurethane Foam Roof Application Process – Gold Star Roofing (Cleveland Ohio)

Applying Spray Polyurethane Foam Roof System Over an existing built-up roof using Conklin acrylic roof coatings On this Flat Roof project, we removed the perimeter Flashing and raised the outer edges, and then installed newer gravel stop flashing. This allowed us to install more SPF or Spray Polyurethane Foam on the outer edges to create a more positive roof slope. After applying the SPF(Spray Polyurethane Foam) we then applied an acrylic base coat on top of the Foam Roof. After the basecoat was dried we came back with a highly reflective White top coat on the entire roof. At Gold Star Roofing we provide solutions for commercial flat and low-sloped roofs. Some of the roofing systems we work with are Spray Foam, Acrylic Roof Coatings, Urethane Roof Coatings, TPO, PVC Membranes Manufactures we work with Conklin Company, GAF, Carlisle, Johns Manville Folow us on facebook… #roofcoatings #conklinroofcoatings #sprayfoamroofing #commercialroofinginstallation #commercialroofing

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