APPLICATION TO SPECIFIC SUBSTRATES
RECONDITIONING OF METAL ROOFS
Duracool provides a waterproof, weather resistant, color stable acrylic elastomeric membrane for renovation of metal roofs of all types and shapes. Duracool I, along with Duracool Rust Primer and Brushable Caulk, will provide excellent protection for metal roofs, effectively sealing fasteners, seams and penetrations and reviving the overall appearance to the roof and extending its useful life.
Duracool I will reflect 80-90° of the sun’s heat and ultraviolet rays. The reflectivity of Duracool I will help to keep roof temperatures cooler (within 2-3° of ambient), thus helping to reduce the interior heat, keeping air conditioning demand down (saving 20-30° on energy costs) and productivity up.
Estimating allowances: Allow 5 to 20% additional (5% for 2/12 pitch, 20% for 4/12 pitch. etc.) material for roof pitch and ribs, when estimating quantities.
Suitable surfaces to receive the system include steel, galvanized steel, aluminum, copper and other metal finishes.
Procedures
* Roof shall be free of ponding water, debris, and fixtures not secured as part of the roof.
* The roof shall be pressure washed using Duracool Roof Wash.
* Duracool Rust Treatment shall be applied over rusted areas.
* Penetrations, fasteners, seams and flashing shall be sealed with Duracool Brushable Caulk.
* 4" Polyester fabric embeded in coating shall be used on any seams suspect of leaking.
* Duracool I shall be applied to the entire roof surface in accordance with warranty requirements (2 coats 16-20 mils dry film thickness = 10 year material warranty).
RECONDITIONING OF BUILT-UP ROOFING
Built-up roofs covered with gravel are not generally suited for coating.
Any areas of unsound roof, i.e. blisters, delamination, deterioration, moisture saturation or other mechanical failure shall be replaced or repaired. The roof shall be pressure washed to remove all dust, dirt, and other contaminants. All penetrations, flashing, etc. shall be sealed with Duracool Brushable Caulk and polyester fabric.
Duracool I is a white elastomeric 100% acrylic coating which is a water proof, weather resistant membrane for renovation and preservation of asphaltic BUR surfaces. Duracool I will reflect 85-90% of the sun’s heat and ultraviolet energy. The reflectivity of Duracool I will help to keep roof temperatures cooler, thus helping to reduce the interior heat, keeping air conditioning demand down and productivity up.
Suitable surfaces to receive the system include new and aged smooth built-up roofing.
Procedures:
· Roof shall be free of ponding water, debris, and fixtures not secured as part of the roof.
· The roof shall be pressure washed using Duracool Roof Wash.
· Penetrations and flashing shall be sealed with Duracool Brushable Caulk.
· The use of polyester fabric embedded in Duracool I on the entire surface shall be recommended when random leaks are present.
· Duracool I shall be applied to the entire roof surface in accordance with warranty requirements.
RECONDITIONING FOR SINGLE-PLY HYPALON* ROOFING
Duracool I coating system will extend the useful life of single-ply roofing. Duracool I is a 100% acrylic elastomeric coating designed to renew Hypalon* and single-ply membranes. Duracool I is a waterproof, weather proof “rubber-like” coating that protects the Hypalon*/single-ply roofing from deterioration.
The single-ply materials must be free of blisters, tightly secured to the roof, and must not be trapping water. Any areas of water saturated, loosely adhered membrane, blister or other mechanical failure must be repaired prior to applying the Duracool system.
Ten year warranty available on Duracool renovation system.
Procedures:
· Roof shall be free of ponding water, debris, and fixtures not secured as part of the roof.
· The roof shall be pressure washed using Duracool Roof Wash.
· The use of polyester fabric embedded in Duracool I on the entire surface shall be recommended when random leaks are present.
· Duracool I shall be applied to the entire roof surface in accordance with warranty requirements.
APPLICATIONS OVER POLYURETHANE FOAM
Duracool I is an elastomeric acrylic system designed for the protection of polyurethane foam. It forms an elastomeric membrane which has excellent color retention and dirt resistant properties. The integral system has excellent adhesion, flexibility, and weatherability to provide long-term protection of polyurethane foam.
Duracool is designed to provide an excellent UV barrier to protect polyurethane foam.
Special care is required when applying Duracool I around penetrations, flashing, etc. so as to feather the coating out 4”.
Polyurethane shall be allowed to dry a minimum of two hours, but not longer than seventy-two hours.
PROCEDURES
· Polyurethane will be installed as per manufacturer’s specifications.
· Apply Duracool I to a minimum thickness of 2 gal. per 100 sq. ft. or 20 mils. Refer to warranty information for the required thickness.
· Extend Duracool I 4” above all foam on walls and protrusions to create self terminating flashing.
APPLICATION OVER EPDM
Refer to our Duracool Home page below roof coating information links "EPDM and Duracool".
Install as follows:
LIMITATIONS AND PRECAUTIONS
Prior to Duracool coatings application, all expansion joints, vents, flashing, drains, etc. shall be installed as specified or required. All ponding areas shall be repaired prior to coating.
A regular maintenance program shall be implemented to thoroughly clean the roof a minimum of once per year. This will prevent the build-up of leaves, pine needles, bird droppings, chemicals and other contamination which could adversely affect the coating.
Do not apply Duracool products at temperatures below 45*F (10*C), or where there is a possibility of temperatures falling below 32*F (0*C).
Duracool products require complete evaporation of water to cure. Cool temperatures and high humidity retard curing time. Do not apply if weather conditions will not permit complete curing prior to rain, dew, fog or freezing temperature. Do not apply over wet substrates.
As a characteristic of all acrylics, Duracool coatings have moisture vapor permeability. The system is not recommended to be applied over cold storage installations or in any areas of long-term ponding water.
GENERAL SAFETY, TOXICITY AND HEALTH DATA
Material Safety Data Sheets are available on all Duracool products. Any individual who may come in contact with these products should read and understand the MSDS information.
WARRANTY
Duracool Roofing System warrants all Duracool products to be free of manufacturing defects and conform to standards published in the product data sheets.
Duracool Roofing Systems guarantees certain Duracool roofing products for periods of five (5) and ten (10) years. This guarantee is limited to the replacement of product which proves to be defective in manufacturing.
The Duracool Roofing System warranty is only valid when the planned system is approved by Duracool prior to application and warranty fees, if any, are paid in full.
* Hypalon is a registered trademark of Dupont.
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