Approved Ice and Snow Melts for use on EPDM Membrane
April 8, 2019
Keeping a roof in top-notch shape during the winter is of the utmost importance to building owners and applicators alike –keeping your crew safe and upholding the integrity of the roofing materials is essential.

One of the most commonly asked questions about an EPDM roofing system in the winter is related to the chemical compatibility of rock salt and other ice melts with EPDM membrane.  EPDM is chemically resistant to rock salt (also known as halite or sodium chloride) and calcium chloride.  If either of these two materials are applied according to the suppliers’ recommendation on an EPDM roof, there will be no chemical deterioration of the membrane.

Your biggest concern with rock salt and calcium chloride pellets will be the physical form these ice melts come in.  Rock salt is a hard, crystalline product that could harm the membrane if walked on after application.  Calcium chloride pellets are somewhat softer in texture, but could still potentially cause damage to the membrane if walked on before being broken down from the pellet form.  Because of this, it is wise for you to limit foot traffic over any areas where ice melts have been applied, in order to minimize the potential for membrane damage through abrasion or puncture.

You should also note that chemicals such as halite or sodium chloride can potentially cause corrosion to metals like aluminum or copper, so it is wise to avoid application of these chemicals around any area on the roof that is made of these materials.

For more information regarding installation, care, and upkeep of EPDM – please contact Ron Goodman.

    Ron Goodman
    EPDM Product Manager
    Product Marketing
    ron.goodman@carlisleccm.com
October 10, 2019
Special Color TPO Accessories

As the demand for different colored roof membranes has grown, Versico introduced its TPO Color Palette with five new colors. In addition to standard white, gray, and tan, Versico’s TPO Color Palette now features Rock Brown, Slate Gray, Terra Cotta, Patina Green, and Medium Bronze. Projects that use special color membrane from the TPO Color Palette usually need flashings and accessories in the same color. Here, contractors have two choices, one of which is painting standard accessories to match the membrane. However, this is a great opportunity to use Versico’s custom TPO accessory program and avoid painting altogether. All of Versico’s custom accessories are available in the five TPO Color Palette colors, as well as white, tan, and gray. Whether it’s a simple split pipe seal or a complex prefabricated curb wrap, Versico can make it in all eight TPO colors and get it to the job quickly. In addition to being available in eight colors, here are some other great advantages to using custom flashings from Versico: • Save time vs. field fabrication: Trying to field-fabricate flashings can be time-consuming work, even for the most skilled and experienced roofers. Using prefabricated flashings saves time. • No need for paint: There’s no need to prime and paint the accessories to match the membrane; just install and go. • Speed: Custom accessories can be fabricated and shipped within days, not weeks. • Quality: All of Versico’s custom TPO accessories carry the Certified Fabricated Accessory (CFA) stamp of approval, indicating they are eligible for coverage as part of Versico’s Total System Warranty. Next time you have a project using Versico’s TPO Color Palette TPO, consider using custom accessories to make the job faster and easier to install. VersiWeld TPO Special Color Painting Guide  VersiWeld TPO Special Color Program Custom Accessory Quote Request Form      Adam Burzynski     TPO Product Manager     Product Marketing     adam.burzynski@carlisleccm.com

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September 26, 2019
Solving Unique Challenges with a Hybrid Approach to Insulation

One of the simplest ways to meet building codes requirements in construction is through the effective use of insulation. There are several types of rooftop insulations available in the marketplace, but two of the most commonly accepted in commercial roofing applications are polyisocyanurate (polyiso) and expanded polystyrene (EPS). Polyiso is a lightweight and cost-effective, closed-cell, rigid foam board insulation that provides energy-efficient solutions for buildings in any region and climate, as well as outstanding return on investment and significant energy savings. EPS is a closed-cell, rigid foam insulation manufactured using expandable polystyrene. It is block-molded for most construction applications and is highly customizable, enabling thicknesses up to 40 inches in a single board. EPS is versatile and durable and can provide significant cost and labor advantages. Both polyiso and EPS provide great benefits and R-value in roof construction projects. However, projects often arise when a hybrid solution to insulation may be the most practical. A hybrid polyiso/EPS solution can help you edge out the competition in a number of scenarios. New Construction with Concrete Decks: A recent innovation introduced by Versico is DeckVent EPS Insulation. DeckVent is ideal for new construction projects with structural concrete, lightweight structural concrete, and lightweight insulating concrete roof decks. Using DeckVent in conjunction with one-way and two-way relief vents allows the installation of the roof system to begin upon structural cure of concrete (typically around 28 days). DeckVent is compatible with ballasted, mechanically attached, induction welded, and adhered single-ply roofing systems. The use of DeckVent creates a problem-solving solution for new construction involving concrete decks, enabling construction to commence immediately upon structural cure. Standing Seam Metal Roofs: With square-, taper-, and profile-cut flute-fill products in custom shapes and sizes, a solution is available for all metal retrofit roofs. Combining EPS to fill the metal roof flutes with a subsequent layer of insulation or coverboard can create an ideal foundation for a retrofit roof. Tapered Roof Design: A tapered roof is another ideal candidate for a hybrid approach to save time and money. With thicknesses up to 40" and virtually any slope available in a single board, a base layer of tapered EPS insulation can save nearly 30% in product cost alone, with additional savings on installation time when combined with polyiso. Combining polyiso and EPS in commercial roofing applications is an effective solution that can often save you money and labor on a project. Contact your local Versico representative to learn more.

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September 12, 2019
Roofing with Resilience: A Review of 30-Year EPDM Enhancements

The history of EPDM roofing runs deep. With decades on the market, Versico's EPDM has a proven track record as one of the most resilient membranes in the single-ply roofing industry today. As time goes on and the construction industry evolves, more sustainable structures are becoming the norm. Building codes are increasingly robust and are placing a greater emphasis on protecting your building from Mother Nature’s wrath. Your roof system plays a huge part in achieving compliance and serves as the first line of defense against hail, wind, and other damaging elements. This is where EPDM’s sustainability and durability come into to play. Sustainability and resiliency are some of the strongest attributes of Versico’s EPDM membranes, and EPDM’s durability allows us to offer a high-end, 30-year Total System Warranty that guarantees long-term performance. Below are the enhancements that Versico requires when upgrading to a 30-year EPDM system: 30-Year EPDM Enhancements The Membrane: The thicker and more durable 90-mil non-reinforced EPDM and 75-mil reinforced EPDM are required; fully adhered, mechanically fastened, or ballasted designs are available. The thicker membranes will provide greater long-term performance and superior resistance to weathering. Please note, 45-mil and 60-mil membranes are not eligible for 30-year Total System Warranties. The Splices: Membrane splices are one of most important parts of any roofing system and utilizing our Quick-Applied Tape means more watertight seams and fewer warranty claims. On a 30-year EPDM system, Versico requires membrane with 6”-wide Quick-Applied Tape or 6” Quick-Applied Seam Tape to be installed at all seams and end laps. The 6”-wide tape has greater peel and sheer strength and results in a stronger bond. Please note, 3” factory-applied or hand-applied tape on 30-year warranties must be stripped in with Quick-Applied Cured Coverstrip. The Flashing Details: In addition to seams, flashing details are critical to preventing issues where rooftop penetrations are tied in to the field membrane. On 30-year EPDM systems, Versico requires specific details to be double-wrapped or covered with two layers of flashing. Below is a list of these details: Key U = Universal (applies to all 30-year systems) A = Adhered Systems Only B = Ballasted Systems Only MF = Mechanically Fastened Systems Only  VGC-2.4 QA Seam Tape Splice Intersection (25/30 Year Warranties) VGC-8.1B Pre-Molded Quick-Applied Pipe Seal with 90-mil Membrane or 25/30 Year Warranties VGC-8.3 Field-Fabricated Pipe/Structural Steel Tube Flashing for 25/30 Year Warranties VGC-15.4B Inside Corner Flashing for Projects with 90-mil Membrane or 25/30 Year Warranties VGC-15.8 Outside Corner Flashing for Projects with 90-mil Membrane or 25/30 Year Warranties VGA-2 EPDM Membrane Splices (25/30 Year Warranties) VGB-2.1 Membrane Splice (25/30 Year Warranties) VGMA-2.4 Membrane Splice (25/30 Year Warranties) VGMA-2.5 QA Seam Tape Splice Intersection (25/30 Year Warranties) ***Please speak with a Versico Design Analyst about additional 30-year requirements in regards to adhesives, coverboards, insulation, fastening density, perimeter securement, and metal edging.***     Ryan Ferguson     EPDM Product Specialist     Product Marketing     ryan.ferguson@carlisleccm.com

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