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Metal Roofs


Metal roofs can be a great investment. Because metal typically lasts longer than other roofing materials, you don’t have to worry about investing in another roof anytime soon. However, a metal roof does come with some responsibility. Rust is a real threat to rendering your new roof useless. That’s where Ames roofing products come in to help. By applying our metal roof coating, you can rest assured that your roof will be protected from rust damage. Just follow our simple easy to follow application instructions below and enjoy the longevity of your metal roof! If you have any questions about any of our high quality metal roof coatings or other products, please contact us today so we can help you out. At Ames Research Laboratories we are positive you’ll find the metal roof coatings you’re looking for.

1. Products Needed by Step

Metal Roof Products Needed by Step

2. How To: Steps to Complete the Project

Quick Glance Directions for How to Waterproof a Metal Roof

3. Videos

Metal Roof Application
      Leaky Metal Rood Repair

Iron Coat



4. Detailed Application Instructions

Be sure surfaces are clean and dry before the coating application. Read all label instructions before beginning. Always run a test patch first in an inconspicuous area, to ensure that proper adhesion and drying occurs and the product works to your satisfaction. Seam tape joints and around vents with Ames’® Peel & Stick™ adhesive seam tape. Seam tape the cap or peak or the ridge line of the roof. Follow seam taping instructions.  

Metal Roofs including Tin, Aluminum, Rusty Metal, Corrugated Metal, Fiberglass, Butler Buildings, Hangers and Factories:
Seam Tape where needed, on roofs and gutters. You may also use Ames’® Super Primer™ over rust to help with possible bleed through as well as any silver aluminum fibrous coating.  Super Primer™ has 10 pounds per square inch bonding capability to metal. Top coat with Ames’® Maximum-Stretch™. 

General Application: 
Pour the thick liquid coating out and spread 1-2 gallons of product liberally with a push broom or roller. Work the product until it is smooth and looks consistent in thickness. Move on after a few minutes so the product does not skin over or form a film which can create an unintended texture in the coating’s finished appearance.

Ames’® Maximum-Stretch™ can be applied with a paint brush, a push broom, a low nap roller with a long handle or a Commercial Airless Sprayer.  In addition, will need Ames® Peel & Stick Seam Tape and scissors or a utility knife.  For larger commercial jobs.  We recommend an airless sprayer with a 3/8 inch, 150 foot hose.  Graco, Bulldog or Titan work well.  Call for sprayer information or check product specifications.   

Estimated Coverage:
Standard product coverage on a smooth surface is 100 sq. ft. per gallon per coat (est. 10 mil) but it varies per surface. More than one coat is always recommended. More coats equal longer life.

Weather & Drying Guidelines:
Ames’® Maximum-Stretch™  is best applied between 50° to 90° F (10° to 32° C) on warm dry surfaces. Apply when the streets are dry, the sun is in the sky and no inclement weather is forecast. Starts to dry in 2-8 hours, depending on thickness of application and weather; cures in 24 hours. Low temperatures, high humidity and evening and morning dew will require increased drying/curing time.

Clean-up, Storage, and Disposal: 
Clean tools and small spills with water. Store unused product in its original container, tightly sealed and protected from freezing. Dispose of this product in accordance with local, state, or federal requirements.


5. Buy Products for Project

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  1. Super Primer

    Super Primer is a unique, pure acrylic elastomeric plastic sealant, primer and adhesive for concrete, brick, tile, EPDM rubber, stucco, wood, metal, and many hard-to-stick surfaces.

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  2. Peel & Stick Adhesive Contouring Seam Tape


    Self-Adhesive, Contouring Seam Tape for reinforcement over seams and cracks and around vents. Easy to apply.

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  3. Maximum-Stretch

    Ames® Maximum-Stretch™ is a thick, high quality rubber and acrylic elastomeric coating designed specifically for waterproofing, repairing and maintaining many different types of roofs.

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  4. Iron Coat

    Ames'® Iron Coat  industrial strength roof paint is a thick, high quality rubber and acrylic elastomeric roof coating especially formulated for metal. Designed for waterproofing and maintaining commercial and residential metal roofs, as well as mobile home and RV roofs.

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