Waterproofing (Flat, Green Roofs & More) Using World-Class Kemper System
What is Kemper and Why Do We Use It?
We install Kemper roof systems, which are liquid, fully adhered waterproof roofing systems.
Kemper can be used for:
- many roof types (green roofs, metal roofs, flat roofs, roof decks)
- Kemper can be used for a new roof assembly or can be placed on top of a preexisting roof, depending on assembly.
-  as well as gutters, flashings, balconies and more!
The benefit to using Kemper is you get a warranted and fully waterproofed roof. We can also use this liquid to waterproof gutters (such as Yankee Gutters), as well as decks, balconies (and potential sites of water intrusion nearby, such as doors.)
We also provide services in Fairfield County, CT! Call (646) 992-3780!
Kemper for Green Roofs: Waterproof Systems

- Green roofs in particular are subject to consistent water flow, because you need to water the plants. You don’t want a roof underneath the plantings that isn’t fully sealed from water intrusion. Kemper provides fully adhered and seamless waterproof roof systems for green roofs.
- If you don’t choose a fully waterproofed system like Kemper and you end up needing repairs, it doesn’t matter if that roof is warranted-the green roof materials need to come off, but in most cases the warranty will not cover the removal and replacement of the green roofing materials on top. Kemper warranties for green roofs include an overburden removal rider.
Kemper Roofing vs. TPO, EPDM, Modified Bitumen: No Comparison
In NYC, architects specify Kemper because they don’t want failure. TPO, EPDM and modified bitumen have seams that can fail. Kemper does not.
If you have a critical space that is subject to water intrusion, there is no better option than Kemper.
If you have metal drains and you want to attach the roofing substrate to them, TPO and EPDM don’t attach as well to those drains. Kemper System attaches perfectly, because it is a liquid.
Call us!
Benefits of Using Kemper System:
Kemper System was the first to develop a cold liquid-applied, fully reinforced waterproofing membrane in 1957. Since then, their products have proven to perform reliably well and they are a well-established leader in the industry. Kemper is equal to, or better than alternate waterproofing systems like Soprema, Siplast, Tremco, and Sika.
- Kemper System is designed to withstand hurricane force winds. They eliminate mechanical fixings and withstand wind uplift without additional layers.
- Kemper waterproofing can be used perfectly with gutterways, like Yankee Gutters, for example, and flashings.
- Kemper waterproofing is particularly well-suited for tricky penetration areas.
- Kemper waterproofing membranes adhere to the substrate over the entire surface. This ensures long-term protection at all transitions, penetrations, and terminations.
- Kemper System’s protective membranes are resistant to UV radiation and a wide range of chemicals.
- Kemper System offers robust 20-year material and labor warranties (if completed by a Kemper certified installer – which we are!).
- Kemper System offers odor-free applications, perfect for inhabited dwellings.
- Kemper can be used seamlessly under green roofs, offering protection where needed in light of necessary water irrigation for the plantings.
- Kemper’s products have been designed to meet a variety of needs including Environmental and Sustainability rating systems such as LEED.
What Else Can Kemper Waterproofing Be Used For?
Because Kemper System is a seamless, liquid applied waterproofing membrane, it can be used in a wide variety of applications, such as foundations, kitchens, baths, balconies, exterior facades, parking decks, historic restoration, roof decks, fountains/planters and pools! Kemper has been used in hospitals, university settings, apartment buildings, etc.
Roof decks: Kemper System is perfect for direct application to metal, concrete and plywood. It is resistant to ponding (when water gathers and remains in a spot) and ice.
Foundation waterproofing: Kemper can be applied to walls and floors to prevent water penetration, protecting the walls and flooring from degradation, as well as any items within the area. The liquid is low odor, perfect for enclosed application areas.
Kitchens and baths: low odor application. The liability of a kitchen or bath leaking to the floors below is high: Kemper System is approved by building co-op managements throughout NYC.
Balconies: transparent finish. Cold-liquid applied so no need for torches (safe application.) Kemper comprised of 80% recycled materials and renewable fibers (environmentally safe solution.)
Facade restoration: Blends seamlessly when used with materials like limestone, terra cotta, sandstone, pavers, concrete and tiles. Can be installed as through-wall flashing to any element. “In addition, the waterproofing membrane withstands the dimensional changes associated with dissimilar materials and offers excellent protection for cornices, ledges and water tables without compromising aesthetics” (Kemper System Facade Restoration).
See our Project Gallery for pictures of various Kemper applications we have installed!
Why Choose Us?
- Kemper System requires the highest level of application standards in the roofing industry. Their licensing program requires all companies to pass a technical and demanding on-site training program including tests and application observations, wherein a Kemper System technical specialist works side-by-side with the contractor during their first application. We are Kemper certified. Only Kemper certified installers can obtain warranties.
- We have completed numerous warranted Kemper jobs – our clients include Columbia University and the Pratt Institute, among others.



Contact Us for a Free Estimate
Call us today at 646-992-3780 or email riedelcontracting@gmail.com to get a free estimate for Kemper waterproofing.
Upper East Side waterproofing, Midtown, Downtown, Upper West Side, Soho, The Village, Manhattan, Lower Manhattan, Upper Manhattan, NYC, Jersey City, Fairfield County, CT, Greenwich, CT, Darien, CT, Easton, CT, Westport, CT, Wilton, CT