Siplast

What Siplast does

Siplast is a North American manufacturer of commercial roofing and waterproofing systems, operating as a subsidiary of Standard Industries. The company was established in the late 1960s and is credited as the original developer of SBS-modified bitumen technology for roofing applications. Its product portfolio spans multiple membrane chemistries: SBS-modified bitumen (Paradiene, Parafor, Paratech, Veral, Irex), PMMA liquid-applied systems (Parapro, Terapro), STP liquid-applied systems (Paraflex), and single-ply membranes (Parasolo PVC, PVC KEE, and TPX TPO). Beyond above-grade roofing, Siplast supplies WALLcontrol air and water barriers for walls, TeraPROOF below-grade waterproofing, ParaGREEN vegetated roof and amenity systems (pavers, planters, artificial turf), stormwater management solutions, Terapro PUR deck coatings, PA-750 hot-applied rubberized asphalt, lightweight insulating concrete systems, and polyiso insulation. The company also offers specialty solutions for data centers (Mission Critical NDL Roof Guarantee), historic preservation, and civil engineering (Teranap Geomembrane with NSF Potable Approval).

Siplast sells exclusively through a network of regional sales representatives and certified contractors across the United States and Canada, with dedicated specialists for government, education, Department of Defense, and data center segments. The company participates in more than 200 industry events annually and provides technical support through design services, field tech teams, and the RISE (Research, Innovation, Science, and Engineering) Center, an ISO-certified testing and education facility. Pricing is quote-based and not publicly disclosed, with revenue generated primarily through one-time product sales tied to construction project specifications by architects, engineers, and contractors.

The customer base is diversified across commercial building owners, design professionals, roofing contractors, data center operators, government and institutional clients, and civil engineering projects. Marquee projects include the United Nations General Assembly, Space Needle, Jacob K. Javits Convention Center, Fallingwater, New York State Capitol, and the California Aqueduct. Long-term guarantee programs (up to 30 years for SBS, up to 35 years for Mission Critical NDL), comprehensive technical documentation, and digital traceability via RoofTag RFID support specification-side stickiness across the building enclosure value chain.

Name

Siplast

Legal name

Siplast, Inc.

Website

http://siplast.com

Company type

Private

Founded year

1979

Operating status

Operating

Headcount range

101–250 employees

Short description

Siplast is a North American manufacturer of commercial roofing, waterproofing, and building enclosure systems, serving commercial building owners, contractors, design professionals, data center operators, and government clients with SBS, PMMA, STP, and single-ply membrane technologies as a Standard Industries subsidiary.

Ownership category

akta.pro rank

Product category

Commercial Roofing and Waterproofing Materials

NAICS

Water Supply and Irrigation Systems (221310)

SIC

Unsupported Plastics Film & Sheet (3081), Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Roofing Systems & Waterproofing (Membranes, Shingles, TPO/EPDM, Liquid-Applied) (IMAFAMAA)

akta.pro secondary industry

Water Storage & Delivery Infrastructure (Tanks, Reservoir Liners, Bladders) (AFABAHAK)

Keywords

• Commercial roofing systems
• Waterproofing membranes
• Building enclosure solutions
• Vegetated roof systems
• SBS-modified bitumen

Headquarters

HQ city

Irving

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Commercial Roofing Products: Sale of high-performance commercial roofing membrane systems including SBS-modified bitumen, PMMA liquid-applied, STP liquid-applied, and single-ply (PVC, KEE, TPO) products. Revenue is generated through direct sales to contractors and specification by design professionals.
2. Waterproofing Products: Sale of below-grade waterproofing, deck coatings, and specialty waterproofing systems including TeraPROOF, PA-750 hot rubberized asphalt, and liquid-applied membranes.
3. Overburden Solutions: Sale of vegetated roof systems, amenity space products (pavers, planters, artificial turf), and stormwater management solutions.
4. Commercial Wall Systems: Sale of WALLcontrol air and water barrier systems, polyiso insulation, and wall flashings for commercial building enclosures.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

Siplast develops, manufactures, and distributes high-performance commercial roofing, waterproofing, and wall systems for the North American building enclosure market. Its product portfolio includes SBS-modified bitumen membranes, PMMA and STP liquid-applied systems, single-ply PVC/KEE/TPO membranes, below-grade waterproofing, air and water barriers, vegetated roof and amenity solutions, polyiso insulation, and specialty historic preservation and data center systems.

Product overview

Siplast is a commercial roofing and waterproofing materials manufacturer offering a comprehensive portfolio of high-performance building enclosure solutions. The core product ecosystem spans multiple membrane technologies: SBS-modified bitumen systems (Paradiene, Parafor, Paratech, Veral, Irex), PMMA liquid-applied systems (Parapro, Terapro), STP liquid-applied systems (Paraflex), and single-ply membranes (Parasolo PVC, PVC KEE, and TPX TPO). Above-grade solutions include WALLcontrol air and water barriers, while below-grade offerings feature the TeraPROOF product line for pre-applied and post-applied waterproofing. Overburden solutions encompass ParaGREEN vegetated roof systems (Extensive, Semi-Intensive, Intensive, and Modular), amenity deck pavers (concrete, porcelain, wood, rubber), artificial turf, and modular planters. Stormwater management includes Purple Roof detention/retention, Blue Green Roof systems, and Blue Roof Paver solutions. Additional offerings comprise Terapro PUR deck coatings, PA-750 hot rubberized asphalt, lightweight insulating concrete (ZIC, NVS, Insulcel, Zonocel), rigid polyiso insulation (Paratherm, Paraboard), and Monarflex temporary enclosure systems. Specialty solutions target data centers (Mission Critical NDL Guarantee), historic preservation, and civil engineering applications (Teranap Geomembrane). Supporting services include the RISE research center, technical blog, detail drawings library, and online guarantee application system. A Standard Industries company, Siplast pioneered SBS-modified bitumen technology in the late 1960s and serves the North American commercial construction market.

Differentiator

Problem solved

Functional benefit

Brands

• Paradiene: Premium SBS-modified bitumen roof membrane product line known for exceptional durability and flexibility.
• Parafor
• Paratech
• Parapro
• Terapro
• Parasolo
• Teranap
• ParaGREEN
• TeraPROOF
• WALLcontrol
• Monarflex
• Paratherm
• Veral
• Irex
• Paraflex
• RISE Center
• RoofTag

Products and services

• Paradiene SBS-Modified Bitumen Membrane Premium multi-ply SBS-modified bitumen roof membrane with ASTM D6162, D6163, D6164 reinforcement, offering flexibility, durability, and weather resistance with up to 30-year guarantee options; sold to roofing contractors and specified by design professionals for commercial roofing projects.
• Parafor SBS-Modified Bitumen Membrane Advanced blend SBS-modified bitumen membrane meeting ASTM D6162 standard, with mineral/sand surfacing and up to 30-year guarantee options; for commercial roofing contractors and design professionals.
• Parapro PMMA Liquid-Applied System Premium liquid-applied PMMA (polymethyl methacrylate) flashing and roof membrane system providing high-performance waterproofing with fast cure times for roofing, vegetated roofs, and flashing applications.
• Terapro PMMA Waterproofing System Multi-component fast-curing flexible PMMA resin system for creating waterproofing membranes with fleece reinforcement; used in Terapro and Terapro VTS Systems for concrete protection and surfacing.
• Paraflex STP Liquid-Applied Membrane Silane Terminated Polymer (STP) low-odor, low VOC, isocyanate-free liquid-applied roof membrane for projects where conventional sheet application is difficult.
• Parasolo PVC KEE Membrane Single-ply PVC membrane with Ketone Ethylene Ester (KEE) for enhanced durability and flexibility, providing weathering, chemical, and UV resistance for commercial roofing.
• Parasolo TPX TPO Membrane Thermoplastic Polyolefin (TPO) single-ply membrane with advanced heat-weldability, high reflectivity, and Red List free formulation for sustainability-focused commercial roofing.
• ParaGREEN Vegetated Roof Systems Integrated single-source vegetated roof solutions including extensive, semi-intensive, intensive, and modular assemblies coordinated with Siplast membranes for compatibility.
• Rooftop Amenity Paver Systems Concrete, porcelain, wood tile, and rubber pedestal paver systems for rooftop amenity decks with adjustable pedestals from 3/8 to 36 inches.
• Stormwater Management Systems Purple Roof detention/retention, Blue Green Roof detention and retention, and Blue Roof Paver systems for controlled stormwater release on zero and low-slope commercial roofs.
• PA-750 Hot-Applied Rubberized Asphalt Waterproofing Fast-setting, fully-bonded, monolithic rubberized asphalt waterproofing membrane with PA-750 Reinforcing Fabric for plaza decks and covered applications.
• TeraPROOF Below-Grade Waterproofing Systems High-performance below-grade waterproofing portfolio including pre-applied SBS membranes, STP liquid membranes, drainage mats, protection sheets, and waterstops.
• WALLcontrol Air and Water Barrier Systems Air and water-resistive barrier systems, vapor-permeable membranes, STPE liquid barriers, and stainless and aluminum flashings for commercial building envelope protection.
• Monarflex Temporary Enclosure Systems Flame-retardant temporary enclosure sheeting, scaffold sheeting, and accessories for site containment, dust, debris, and overspray protection during construction.
• Lightweight Insulating Concrete Systems ZIC, NVS, Insulcel, Zonocel, and Insulcel RT lightweight insulating concrete systems combining cellular foam and expanded polystyrene for smooth monolithic roofing surfaces and slope-to-drain applications.
• Paratherm Polyisocyanurate Insulation High-performance polyisocyanurate roof insulation boards, coverboards, factory-laminated panels, and asphaltic coverboards for commercial roofing applications.
• Mission Critical NDL Roof Guarantee Extended 35-year limited guarantee specifically developed for data centers covering leak repairs, hail damage up to 3 inches, 120 MPH wind gusts, scheduled inspections, and no dollar limit on covered repairs.
• Teranap Geomembrane High-performance elastomeric bituminous geomembrane for civil engineering applications including canals, reservoirs, dams, and wastewater storage with NSF Potable Approval.
• Historic Preservation and Restoration Solutions Specialized roofing, waterproofing, and building enclosure solutions for landmark buildings including UNESCO World Heritage Sites, civic buildings, and historic roofs with complex detailing requirements.
• Terapro PUR Deck Coatings Polyurethane and polyurea-based concrete protection coatings for lower decks, parking garages, and balconies with skid resistance for light to medium vehicular and pedestrian traffic.

Quantifiable outcome

• Roof service life of 20-30+ years with proper installation and maintenance
• +5 more outcomes

Named customers11 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Carlisle Construction Materials: Carlisle is one of the largest US commercial roofing manufacturers offering single-ply EPDM, TPO, PVC membranes plus spray foam and accessories. Directly competes with Siplast across commercial reroofing and new construction specifications, with overlapping contractor distribution.
• GAF: GAF is the largest North American roofing manufacturer and a sibling brand under Standard Industries. Directly competes in commercial roofing (TPO, PVC, modified bitumen) and would be the most likely internal substitute if Standard consolidates Siplast into GAF.
• Firestone Building Products: Firestone (now part of Holcim) is a major commercial roofing manufacturer with EPDM, TPO, metal, and asphalt-based systems. Directly competes with Siplast across commercial reroofing, particularly on TPO and modified bitumen specifications.
• Johns Manville: Johns Manville (Berkshire Hathaway) manufactures commercial roofing membranes (TPO, EPDM, PVC), insulation, and below-grade waterproofing. Competes directly with Siplast's Parasolo single-ply, TeraPROOF, and Paratherm insulation lines through shared contractor channels.
• Tremco Roofing and Building Maintenance: Tremco is a long-standing commercial roofing and waterproofing manufacturer offering BUR, modified bitumen, single-ply, and fluid-applied systems. Direct competitor in modified bitumen and PMMA liquid-applied segments, with comparable specialty vertical positioning.
• SOPREMA: SOPREMA is a global waterproofing manufacturer with strong modified bitumen, single-ply, and liquid-applied membrane portfolios. Direct competitor in SBS-modified bitumen roofing and below-grade waterproofing, with growing US specification presence.
• Versico Roofing Systems: Versico is a Carlisle subsidiary specializing in single-ply EPDM and TPO commercial roofing membranes distributed through authorized contractors. Direct competitor to Siplast's Parasolo PVC/TPO line, with strong overlap in contractor-driven specification.
• IKO: IKO is a global manufacturer of commercial and residential roofing systems including modified bitumen, single-ply, and built-up roofing. Directly comparable to Siplast in modified bitumen specifications across North American commercial projects.
• BMI Group: BMI is a global roofing and waterproofing manufacturer (formerly Braas Monier and Icopal) with strong modified bitumen and single-ply offerings. Direct competitor in SBS-modified bitumen roofing with significant European presence and growing North American reach.

Broad incumbents

• Sika: Sika is a global specialty chemicals and building envelope solutions provider with roofing membranes, waterproofing, and sealing systems. Adjacent competitor to Siplast with broader portfolio and stronger global footprint in commercial waterproofing.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/user/SiplastUS
• Facebookfacebook.com/siplast
• LinkedInlinkedin.com/company/siplast
• Instagraminstagram.com/siplast_roofing
• Xx.com/siplast

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Siplast