Some roofing manufacturers market warranties as “the guarantee” of a quality installation. Don’t be fooled. Too often, the only thing about a warranty that a building owner considers is length – which is probably the least important part. While a warranty can be very beneficial to a building owner, it does not guarantee a leak-proof roof.

With or without a warranty, the long-term performance of a roof depends on four things:

  1. A quality membrane and proper system design
  2. Expert installation by authorized applicators
  3. Periodic inspections with common sense maintenance
  4. Sika Roofing advantages


Sika Roofing Advantages

Proven Performance
Even before a warranty is issued, building owners, roof consultants, architects, specifiers and other people knowledgeable about roofing systems should make their new or re-roof decisions based on a product and company with a proven performance history. Sika Roofing is the only thermoplastic membrane manufacturer with more than 50 years of proven performance history using the same basic membrane formulation. Our proof of long-term success is evident on buildings around the world.

Financially Stable Company
Sika Roofing is a financially strong, reliable company, backed by its Swiss parent, Sika Corporation. Our parent company is publicly traded on the Swiss stock exchange. The Sika Roofing division is a company you can count on to be there for you if you should ever have a warranty claim.

No Exclusion for Ponding Water
Because our hot-air welded seams are permanently fused together, the membrane becomes a monolithic (continuous) sheet across the entire roof. Since water is unable to penetrate the membrane, and there are no seams capable of separating, building owners are assured that ponding water – a very common occurrence on flat roofs – will not impact the reliability of the Sarnafil roof system. For this reason, Sarnafil does not have an exclusion for ponding water in any of its warranties.

No Exclusion for Gale Force Winds
We are so confident in our attachment systems that Sarnafil membranes do not exclude gale force winds in any of its warranties. One of our systems, called Sarnafil Express, is specifically designed for repeat heavy wind uplift areas. This superior attachment system includes a standard warranty for repeat wind events of up to 72 mph on buildings under 21 stories in height!

Final Field Inspection
Upon completion of all Sika Roofing projects with standard and system warranties, our field technical representatives complete an extensive inspection of the roof to ensure the installation meets our high standards of quality workmanship.

Fully Transferable
A Sika Sarnafil warranty is transferable to a new building owner, making your roof a marketing asset during a sale negotiation.


Warranty Options


Sika Roofing offers three warranty options on Sarnafil systems, each with 5, 10, 15 and 20 year durations. 25 and 30 year durations are available for system warranties only. Please contact your local sale representative for system specifics.


Sika Roofing offers three warranty options for Sikaplan systems, each with 5, 10, 15, and 20 year durations.


Sika Roofing offers three warranty options, each with 5, 10, 15 and 20 year durations.

Green Roof

Sika Roofing offers single-source Extensive Green Roof warranty options, each with 5, 10, 15 and 20 year durations.


Sika Roofing offers two warranty options, each with 5, 10 and 15 year durations.


As interest in Photovoltaic (PV) Systems continues to gain momentum, Sika Roofing has been asked about installing Photovoltaic (PV) Systems on warranted roofs. Click below to find out more about our requirements.


Click here to learn more about the warranties for each Sika Roofing system.