Maximum Stretch 275 gallon tote

What is Ames® 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. Temperature fluctuations and severe weather will cause tremendous expansion and contraction of roofs which loosens up the building over time causing roofs to fail and leak. Ames® Maximum-Stretch® has remarkable adhesion and is easy to apply.

Ready to use – no mixing required. It dries rapidly to form a cool white, watertight roof membrane with up to 750% elasticity that expands and contracts with the roof surface. Ames® Maximum-Stretch® stays cool and resists cracking and peeling. It reflects up to 98% of the sun’s rays to reduce roof temperature and energy costs. Ames® Maximum-Stretch® remains flexible at freezing temperatures. It has been developed for a wide range of climates from hot to cold, and formulated to resist fungus, mold and mildew. Available in three colors of white, tan and light grey at no additional charge. Maximum Stretch can also be tinted to a limited selection of pastel colors.

Call 888-345-0809 to order today!

Where to Use:  

Metal Roofs including: Residential & Commercial, Tin, Aluminum, Rusty Metal, Corrugated Metal, Butler Buildings, Hangers and Factories.

Flat Roofs including: Tar Roofs, Built up Roofs, Fiberglass, Concrete, Modified Bitumen,  Rolled Roofing, Plywood, EPDM/Rubber, TPO, PVC, and Vinyl Roofs, Vents, Skylights, Flashing and Chimneys. (Use Ames® Super Elasto-Barrier™ or Ames® Super Primer™ as needed)

Instructions and Specifications


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, you may need Ames® Peel & Stick Seam Tape and scissors or a utility knife.  For larger commercial jobs, we recommend a commercial/industrial airless sprayer.  Click Here for Sprayer Specifications.

Estimated Coverage:

Standard product coverage on a smooth surface is 100 sq. ft. per gallon per coat. Rough or uneven surfaces may require additional product. More than one coat is recommended, more coats equal longer life.


Surface has to be in savable condition, clean and dry with proper drainage. Pressure wash when possible using pure water. Be sure the surface is clean and completely dry before the application of the coating. 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. As an option, use Ames® Peel & Stick™ adhesive seam tape and tape all joints, seams and around vents. Do not use any soaps or detergents to clean the surface. Call for specific instructions 888-345-0809 or visit the System Specification – Roof Page of our website for specifications for your particular project application.

Weather & Drying Guidelines:

Ames® Maximum-Stretch®  is best applied between 50° to 90° F (10° to 32° C) on warm and dry surfaces. Apply when the streets are dry, the sun is in the sky and no inclement weather is forecast. Starts to dry in about 2-8 hours, depending on thickness of application and weather; if at all possible, for best results, we recommend a minimum of 24 hours between coats. No rain in the forecast and no freezing temperatures. Low temperatures, high humidity and evening and morning dew will require increased drying/curing time. Do not apply after 3 pm for best drying. The earlier you can put it on, the better. Make sure any morning dew is completely dried off before proceeding.

Contact Ames Research Laboratories

Mon-Fri 7 AM - 5 PM PT


Toll Free: 1-888-345-0809


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