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Since 1955, Gaco Western has manufactured exceptional waterproofing and insulating products for commercial, industrial and residential applications. Today, our products cover millions of square feet of buildings and we have earned a trusted reputation in the construction industry. When you work with Gaco you can rest assured you’re dealing with a specialist who knows your area, understands your situation and is at the ready to help you out – in person

Silicone Roof Coating Systems

Re-cover, don’t re-roof. You’ll save money, time and aggravation and avoid time-consuming and costly tear-offs. Whether your roof is large or small, flat or sloped, GacoFlex Silicone Roof Coating Systems provide a proven, guaranteed solution for renewing your weathered roof. They can be applied to virtually any existing roofing surface to create a seamless membrane that protects against permanent ponding water, ultraviolet light and severe weather. 

The key advantages of using a silicone roofing system:

  • Silicone is permanent and will not degrade, chalk or crack under harsh UV rays.
    • Silicone forms a seamless membrane that withstands permanent ponding water without softening.
    • Silicone creates a smooth surface that offers excellent resistance to mold, mildew and staining.

GACO Auto Deck

Protecting your high traffic vehicle deck, season after season. GacoAutoDeck systems are fully adhered, seamless protective membranes which will withstand years of adverse weather and normal traffic abuse. Incorporating tough GacoFlex polyurethane coatings along with GacoShell granules, GacoAutoDeck systems are designed specifically for vehicular wear applications.

GACO Pedestrian Deck

Attractive, durable waterproofing for pedestrian and rooftop deck surfaces. GacoPedestrianDeck systems are seamless protective membranes that incorporate organic granules for added slip resistance. The materials expand and contract with normal temperature shifts to provide long-lasting leakage protection. The fully integrated GacoFlex coatings are specially formulated to bond together and avoid shrinking, cracking, chipping, peeling, lifting or buckling when the temperature changes – creating a deck surface which will retain its strength and beauty season after season.

Below Grade and Between Slab Waterproofing

Sometimes you need the toughest waterproofing in hidden places. Gaco LM60 is 100% pure polyurethane. When properly applied, it will create a seamless membrane that will provide unsurpassed waterproofing performance and a longer life cycle than many other materials. GacoFlex LM60 is recommended for use in IRMA roofing systems and on between slab and below grade structures. Unlike other waterproofing membranes, LM60 is solvent free and super-compliant and is NSF/ANSI 61 Certified for use in waterproofing potable water tanks

    Copyright 2018 Heartland Architectural Products. All Rights Reserved.

    4334 N. Meridian Ave.

    Oklahoma City, OK / 73112

    Phone (405) 601-6147 / Fax (405) 212-4931


The information presented on this website was assembled with care and is believed to be current and accurate on the date presented; however, the information was prepared by the manufacturers represented and not by Heartland Architectural Products LLC, Kevin W. Decker and David Gary, who cannot and does not extend any warranty either express or implied for the company or themselves or on behalf of the manufacturer, all of which are disclaimed, including without limitation, the implied warranty of fitness for a particular purpose. Services by Heartland Architectural Products LLC, Kevin W. Decker and David Gary are not intended or offered in substitution for the design professional’s judgment and due diligence. It is expected that a design professional will exercise professional judgment and due diligence before issuing Contract Documents for a specific application under a professional seal and signature in accordance with applicable laws.