Joint and Termination Sealant Designed for Large Joints, Roof Termination Bars

JTS 1 joint and termination sealant from Mule-Hide Products Co. The new JTS 1 joint and termination sealant from Mule-Hide Products Co.allows contractors to quickly and easily seal large joints and roof termination bars – including those submerged under water – with no sagging or shrinking and minimal odor. According to the manufacturer, the 100-percent solids, moisture-cure urethane sealant delivers excellent adhesion to EPDM and PVC membranes, concrete, masonry, wood, vinyl and other common building materials. Primer is required when using it on TPO membranes.
 
The joint and termination sealant is designed to offer exceptional workability for quick, easy application in both dry and wet surface applications. It has a tack-free time of just 30 minutes. The solids content of JTS 1 eliminates shrinking and sagging. The sealant can, therefore, be used to provide watertight closure of joints up to 2 inches wide and 1 inch deep.
 
JTS 1 is isocyanate-free, enabling it to be packaged in durable plastic cartridges without losing workability. Unlike cardboard tubes, the cartridges can be submerged under water to repair roof leaks, gutters and downspouts. They also better withstand the rigors of transportation, storage and jobsite conditions without becoming damaged.
 
Solvent-free JTS 1 has minimal odor. Its volatile organic compound (VOC) content of less than 10 grams per liter makes its use allowable in areas with VOC restrictions. It is available in eight colors – white, black, bronze, gray, limestone, wicker/tan and terra cotta.

Butyl Seals Without Hardening

The #8660 single-component non-skinning butyl provides adhesion and a permanent seal where a non-hardening weather seal is desired.

The #8660 single-component non-skinning butyl provides adhesion and a permanent seal where a non-hardening weather seal is desired.

Lucas has added #8660 single-component non-skinning butyl to its product line. The #8660 provides adhesion and a permanent seal between concealed end-laps, metal roof panels, standing-seam roof panels, ridge cap, wall panels and other applications where a non-hardening weather seal is desired. This product is a suitable material for OEM and shop assembled metal details. The #8660 comes in a neutral color, guns easily in cold or hot weather, and is packaged 12 per case.

Flash and Seal Single-Ply Membrane Components

Lucas #9500 Single-Ply Sealant is a one-component, non-shrink, advanced technology polyurethane sealant designed for the construction of liquid flashing systems and sealing pitch pockets and pans, metal roof seams and fasteners, inlaid gutters, polyurethane foam, PVC and EPDM roofs.

Lucas #9500 Single-Ply Sealant is a one-component, non-shrink, advanced technology polyurethane sealant designed for the construction of liquid flashing systems and sealing pitch pockets and pans, metal roof seams and fasteners, inlaid gutters, polyurethane foam, PVC and EPDM roofs.

Lucas #9500 Single-Ply Sealant is a one-component, non-shrink, advanced technology polyurethane sealant designed for the construction of liquid flashing systems and sealing pitch pockets and pans, metal roof seams and fasteners, inlaid gutters, polyurethane foam, PVC and EPDM roofs.The semi-self-leveling properties make it so that it can be used to seal seams and repair single-ply membranes at any slope. It may also be used on TPO roofs when primed with Lucas #8015.

The Lucas #9500 is compatible with Lucas water-based acrylic coatings. It is suitable for repairing hail-damaged polyurethane foam roofs. It may also be used in conjunction with custom-manufactured Lucas PolyPans and metal pitch pockets.

The #9500 comes in white and black colors, guns easily in cold or hot weather, and comes packaged 12 per case.

Seal Pipe Penetrations with Pitch Pan Kits

R.M. Lucas Co. adds the #409 PolyPan kits to its line of pitch pan products.

R.M. Lucas Co. adds the #409 PolyPan kits to its line of pitch pan products.

R.M. Lucas Co. has added the #409 PolyPan kits to its line of pitch pan products. PolyPans are lightweight, strong and UV-resistant interlocking pitch pans that are suitable for most types of low-slope roofing. The PolyPans, used in conjunction with the Lucas #9600 Sealant and #4500 Semi-Self Leveling Sealer, make sealing of pipe penetrations fast and economical. With up to a 20-year warranty, the #409 PolyPan kits are a great option when sealing pipe penetrations.

Seal Gutters at Extreme Temperatures

Novagard Solutions has made available its Novaflex Gutter Sealant, which is designed for gutter applications, downspouts, soffits and other metal surfaces.

Novagard Solutions’ Novaflex Gutter Sealant.

Novagard Solutions has made available its Novaflex Gutter Sealant, which is designed for gutter applications, downspouts, soffits and other metal surfaces. It is suited for metal to metal and metal to plastic adhesion and provides a permanent seal for installing or repairing rain-carrying systems. The product, which has an 18-month shelf life, is UV resistant and does not shrink or crack. Novaflex Gutter Sealant, which can be extruded in extreme temperatures, ranging from -20 to 120 F, is available as a paste in white, gray and translucent and as a self-leveling, flowable product in gray.

Sealant Is Elastomer-based

Lucas #5400 is a high-performance, thermoplastic elastomer-based roofing sealant.

Lucas #5400 is a high-performance, thermoplastic elastomer-based roofing sealant.

Lucas #5400 is a high-performance, thermoplastic elastomer-based roofing sealant. The multipurpose sealant adheres to most surfaces, including asphalt, shingles, modified bitumen, metal, Kynar, wood, concrete, tile, masonry and others. It is available in three grades: brush grade, trowel grade and caulk grade. Lucas #5400 is manufactured from UV-stable SEBS thermoplastic elastomers while the asphalt portion of the formula adheres to asphaltic materials and other surfaces. The product will not crack or harden over time and is easy to apply even in cold weather.

Waterproof and Maintenance-free Roof Penetrations

The fewer people with access to the roof, the better chance the roof has at meeting the basic expectation of keeping the elements out of the building.

Pitch pockets are flanged, open-bottomed metal containers, placed around roof penetrations.

Pitch pockets are flanged, open-bottomed metal containers, placed around roof penetrations.

Because they make their living on the roof, commercial roofing installers know how to complete a watertight system, one that does not allow damaging moisture into the building. Unfortunately, when the roofing installer finishes the job, more work, perhaps by other trades, most notably HVAC contractors, may be done with possible impacts on the roofing membrane.

Someone has to get on the roof to install that equipment and at that point it’s going to be an equipment installer, not a roofing installer. It’s important to be aware of who is doing what on the roof!

Attaching equipment to the building structure, through the roof, is the most efficient method of attachment, but often such work is done without consideration of waterproofing concerns. Any attachment penetration must not compromise the integrity of the roofing system.

This is why RoofScreen Manufacturing got into the business: to discover and develop a better method for leak-proof attachment for all types of roofing and building structures.

the caulk and band method, commonly used on round penetrations, which employs a single-ply or soft lead pipe flashing around the penetration.

The caulk and band method is commonly used on round penetrations and employs a single-ply or soft lead pipe flashing around the penetration.

The equipment installer has options. A traditional penetration waterproofing system is what is known as the pitch pocket. Pitch pockets are flanged, open-bottomed metal containers, placed around roof penetrations. They are filled with coal tar pitch, hot asphalt, grout or other chemical sealants. They are effective around odd-shaped penetrations but require maintenance, which means slapping on more sealant when it leaks.

Another method is the caulk and band method, commonly used on round penetrations, which employs a single-ply or soft lead pipe flashing around the penetration. Near the top of the flashing is an adjustable draw-band that clamps the flashing to the penetration. Caulking is applied around the top of the flashing to make the final seal.

Both practices are accepted by the National Roofing Contractors Association. The problem is both require annual or semi-annual maintenance to check if the sealant has cracked or separated from the penetration and addition of sealant as necessary.

RoofScreen offers a patented engineered and leak-proof roof attachment system to ensure the integrity of the roofing system. It starts with a 6- by 6-inch steel base support, available in a variety of lengths to accommodate any insulation thickness. The support is attached with bolts or lag screws to the roof structure through the interior of the base support. Specially fitted flashing boots are then installed and roofed in by a qualified roofing contractor. After roofing is completed, a self-adhesive EPDM gasket strip is applied around the top of the flashing, which provides added protection from snow, ice and splashing water. The final step is to install the Base Cap Assembly, which counterflashes 2.4 inches over the flashing and creates a seal by compressing the gasket. This watertight structural mounting point is ideal for mechanical equipment screens, equipment platforms and solar panel racking systems.

This watertight structural mounting point is ideal for mechanical equipment screens, equipment platforms and solar panel racking systems.

A watertight structural mounting point is ideal for mechanical equipment screens, equipment platforms and solar panel racking systems.

Many roofing manufacturers require penetration flashings to extend a minimum of 8 inches above the roof surface. RoofScreen has performed successful independent lab testing on its roof attachment system with only a 3-inch flashing height and had no leaks. Ultimately, it’s up to the roofing contractor and the roofing manufacturer to determine the flashing height in relation to the roof. Consult with both, especially if there is a roofing warranty involved.

If a base support needs to be raised to meet a required flashing height, RoofScreen offers 5-, 9- and 12-inch versions of the base support, plus 3- and 4-inch extensions. A taller base support should, in most cases, provide enough clearance for the amount of insulation being used. It should be noted the height of base supports impacts the overall design of the frame. RoofScreen provides fully engineered solutions incorporating all equipment screen variables.

In addition to installing a patented engineered leak-proof roof attachment system, RoofScreen eliminates the need for periodic maintenance. There will never be a need to add temporary caulking. With no need for maintenance, there’s one less reason for anyone being up on the roof to compromise the roofing system. That’s a good thing.

Sealant Resists Weathering on a Variety of Substrates

Triangle Fastener Corp.'s APS 500

Triangle Fastener Corp.’s APS 500

Triangle Fastener Corp. has released its APS 500, which is formulated for adhesion and resistance to weathering, as well as can be used with a variety of substrates. The sealant comes in plastic tubes with screw-on nozzles and is available in custom colors. Advance Polymer Sealant combines the strength of polyurethanes with the weathering resistance of silicones. It is solvent- and isocyanate-free. The product can be installed at -35 to 140 F temperatures.

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