Siplast Select Contractor wearing a yellow hardhat overlooking a commercial construction job site.
Siplast's red and blue s-bug

Siplast Select Contractor resources

Powering your projects, from estimate to install

At Siplast, we're committed to supporting our contractor partners by providing the resources, training, and guidance your projects demand. From material estimating calculators and detailed installer guides to sample guarantees, everything here is built to streamline your workflow and enhance your business. Explore our library of tools below so you can build with precision and confidence.

As a Siplast Select Contractor, you join an elite network trusted to install our high-performance commercial roofing, waterproofing, and building enclosure solutions. Our exclusive certification program is designed to reward your expertise, promote your business, and help drive new project opportunities your way.

Win more work with exclusive access to premium Siplast materials

Connect with a rep
Commercial contractors reviewing project plans on a jobsite.

Expand your expertise

Earn certification in Roofing, Waterproofing, Building Enclosure—or expand your competitive edge by getting certified across multiple specialties.
Two commercial building enclosure professionals examining architectural blueprints to bid on Siplast systems.

Win more bids

Stand out on bids with exclusive access to premium Siplast products and systems.
Contractor discussing commercial project specifications with a building owner on a jobsite.

Connect with owners

Benefit from a program designed to market your business, reward quality craftsmanship, and connect you directly with building owners.
* Contractors enrolled in Siplast certification programs are not employees or agents of Siplast, and Siplast does not control or otherwise supervise these independent businesses. Contractors may receive benefits from Siplast for participating in the program and offering Siplast enhanced warranties and guarantees, which require the use of Siplast products.

Material estimating guides & calculators

Siplast Select contractors applying white liquid-applied waterproofing membrane to a roof deck.
PROJECT RESOURCES

With you every step of the way

Siplast offers specialized services to support your business and streamline your workflow, so you and your team can continue to build with confidence. From our Field Tech and Tapered Design teams to Guarantee Services and Design Services, we ensure your success at every stage of the project.

RISE Blog

Explore the RISE Blog
Roofing installer using a weighted roller to smooth out a low-slope membrane during installation.

Low-Slope Roofing 101: Starting from the Bottom

View low-slope roofing article
Aerial view of a commercial office complex featuring an SBS-modified bitumen low-slope roofing system.

5 Benefits of SBS-Modified Bitumen Roofing

View SBS article
Commercial building plaza with PMMA waterproofing system.

The Technical Edge of PMMA: Why Siplast Parapro Flashing Outperforms Traditional Methods

View PMMA article

Siplast contractor FAQs

Contractors are selected to join the Siplast Select Contractor program by demonstrating installation expertise across commercial roofing, waterproofing, or building enclosure systems. This is based on years of proven performance, maintenance of practice (minimum 4 jobs per year), completing training certifications, and meeting the highest standards of quality and installation practices. To learn more about the program or begin the application process, contact your Siplast representative.
Registered contractors can apply for and monitor project warranties online using the Siplast Guarantee Application System.
Through this portal, Siplast Select Contractors can:
  • Submit new applications: Fill out required project details, including site locations, owner/architect contacts, roof construction configurations, and specified Siplast materials.
  • Track status in real time: Submit completed applications directly to the Siplast Technical Department and monitor application progress (e.g., Draft, Pending Approval).
  • Download sample guarantees: Review and attach sample terms across Siplast commercial roofing, waterproofing, insulation, and specialty surfacing systems—including material-only and regional coverage options&emdash;to include in client bid packages.
A long-term roofing system can only be achieved with a sound and suitable substrate. Before any work begins, the contractor must conduct a thorough examination of substrate conditions and notify the architect and owner of any unsatisfactory findings—such as uneven surfaces, structural irregularities, or moisture issues. Proceeding with installation on a compromised substrate is a recipe for premature failure, costly repairs, and impeded adhesion that can potentially void manufacturer warranties. To learn more about how deck conditions impact overall performance, read Why Substrate Imperfections Matter in Roof Design.
Achieving a high-performance installation requires proper mechanical profiling of the substrate and chemical compatibility across every layer. For concrete decks, mechanical abrasion (like shot blasting) must create a Concrete Surface Profile (CSP) of 2 to 5 to ensure a mechanical interlock, while all primers, adhesives, and sealants used over that deck must be tested together to avoid adhesive breakdown or plasticizer migration. For complete surface preparation guidelines, consult Concrete Surface Profiles for Roof System Bonding, and to learn how accessory layers interact, read Compatibility of Roofing Materials: Why the Tape (and Every Layer) Matters.
The most reliable method is to specify and install a complete, manufacturer-tested system that qualifies for a full-system warranty. Manufacturers perform rigorous compatibility testing on all system components (including primers, adhesives, and sealants). If substitutions are required&emdash;especially by mechanical or electrical trades later in the project&emdash;you must verify compatibility with the roofing manufacturer before application. Learn more best practices in Compatibility of Roofing Materials: Why the Tape (and Every Layer) Matters.