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Combined General Water Proofing Services

CG offers advanced waterproofing and fire protection solutions, including bituminous, liquid, and polyurethane membranes, safeguarding structures, industrial sites, and critical assets from water damage and fire hazards.

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Frequently Asked Questions
  • How can I track my order?

    Once your order has shipped, you’ll receive an email from Combined General Co. with a tracking number and carrier information. You can use that information to follow your package’s journey. If you haven’t received tracking details within 3 business days, please email us at i@combinedgeneral.com, and we’ll assist you promptly.
  • What if I entered the wrong shipping address?

    If you realize there’s an error in your shipping address, contact us immediately at i@combinedgeneral.com. If your order hasn’t shipped yet, we’ll do our best to update it. If the order has already shipped, we’ll help you figure out the best solution, but please note that rerouting or reshipping may incur additional fees.
  • Do you offer international shipping?

    Yes, Combined General Co. ships to select international locations. Shipping rates and delivery times vary based on destination and carrier. Please note that customers are responsible for any customs duties or import taxes charged by their country. If you need help with an international order, just drop us an email at i@combinedgeneral.com.
Including felt paper or tar paper with asphalt or tar to make a built-up roof, other bituminous waterproofing, ethylene propylene diene monomer EPDM rubber, hypalon, polyvinyl chloride, liquid roofing, and more.

Application of Cementitious Waterproofing : Cementitious waterproofing is used in the following type of structures:

• Water Treatment plants
• Sewage Treatment Plants
• Bridges
• Dams
• Railways & Subway Systems
• Marine Cargo Ports & Docks
• River Locks / Channels & Concrete Dykes
• Parking Structures & Lots
• Tunnels

Liquid Waterproofing Membrane Method:
Liquid membrane is a thin coating which consists of usually a primer coat and two coats of top coats which are applied by spray, roller, or trowel. It offers more flexibility than the cementitious types of waterproofing. The liquid cures into a rubbery coating on the wall. The elongation properties of the coating can reach as high as 280%. The durability of the waterproofing coating depends on what type of polymer the manufacturer use for the making of the liquid waterproofing. Liquid waterproofing membrane can be of spray-applied liquid membrane composed of polymer-modified asphalt. Polyurethane liquid membranes in separate grades for trowel, roller, or spray are also available from various manufacturers.
 
Bituminous Membrane Waterproofing Method:
Bituminous membrane waterproofing is a popular method used for low-sloped roofs due to their proven performance. Bituminous waterproofing membrane have torch on membrane and self-adhesive membrane. Self-adhesive compounds comprise asphalt, polymers and filler; additionally, certain resins and oils may be added to improve adhesion characteristics. The self-adhesive type has low shelf life as bonding properties of the membrane reduces with time. Torch on membrane have exposed and covered types. Exposed membrane often has mineral granular aggregate to withstand the wear and tear of the weathering and the other types of membrane, contractor need to apply one protective screed to prevent the puncture of the membrane.
 
Polyurethane Liquid Membrane Waterproofing Method:
Polyurethane liquid membrane method of waterproofing is used for the flat roof area and exposed to weathering. This waterproofing method is expensive.Polyurethane Liquid Membrane can offer higher flexibility. Polyurethane is very sensitive to moisture content present, therefore before application, one has to be very careful evaluating the moisture content of the concrete slab, otherwise peeling or de-bonding of membranes may happen after some time. offers the broadest line of passive fire protection products and systems for fire rated and fire resistant construction. From architects looking for specifications or objects to installers requiring basic or advanced training, Our dedicated fire stop experts will meet with you to discuss your application needs, helping ensure that your project meets current building and life safety code requirements, 

CG provides: Innovative fire resistant construction products and systems that help prevent the spread of fire, smoke and toxic gases to help you construct safer buildings that help protect lives and property. Cutting-edge, fully integrated and easy-to-use fire stop solutions for fire resistant construction. Continually evolving fire stop technology, from time-tested fire barrier sealants to today's innovative   fire stop devices and duct wraps.

Over 100 products and almost 1,000 tested and approved systems. With CG as your sole source oil and gas fire protection provider, you can help manage your risk and help get the fire protection aspects of your refinery project done right the first time. The devastating effects of a refinery fire can result in lost production, worker injuries and can expose your operations to liability issues. 

In the event of a fire, CG Oil & Gas Fire Protection Products are designed to help mitigate fire spread, providing additional time to control the fire and to allow for a safer site evacuation. CG has developed tested and listed systems for the protection of critical electrical circuitry, structural components and vessel skirts.CG Oil & Gas Fire Protection Products provide you practical and proven applications for superior refinery protection, including outstanding performance in high-intensity fires with advanced fire protection for your most critical assets.

Driven by Vision, Collaboration, and Commitment to Excellence

Belief, vision, common sense, hard and smart work, professionalism, collaboration, cooperation, the desire to make things possible and common mutual interest among our people, suppliers, customers, alliances and government sectors is behind our humble and continued growth.

Our company is an opportunity driven company that is dynamic, yet focused on what is important and can add value to our customers as while as to our bottom-line.

We have been an important part of many major and well known national & international companies including the public sectors by providing solutions and delivering on our promises.