Tremco Roofing and Building Maintenance, founded in 1928 and part of RPM International's Tremco Construction Products Group, sells fluid-applied roofing systems direct through a national sales-representative force rather than open distribution. Its liquid-applied portfolio spans the AlphaGuard family (two-part bio-based BIO polyurethanes, MT urethanes, PUMA polyurethane/methacrylate hybrids, and Si silicones) plus the single-component Geogard urethane restoration system. Systems are tied to Tremco's unified warranty program, including Plain and Simple and extended-term coverage at published gallonage rates, and the TremCare preventive maintenance program.
Coating products & published specs.
AlphaGuard BIO Top Coat
Polyurethane
- CoverageTop coat 2 gal/100 sq ft (32 wet mils)
- Solids100% by volume
- Film build32 wet mils standard
- WarrantyTremco Plain and Simple / Extended system warranties at 3 gal/sq application rate
Full specs & data sheet
Application
Coverage: Top coat 2 gal/100 sq ft (32 wet mils); 3 gal/sq (48 wet mils) for Plain and Simple/Extended Warranty
Film build: 32 wet mils standard; 48 wet mils warranty rate; 100% solids so dry film approx equals wet
Physical properties
Solids: 100% by volume
- Two-part, 60% USDA bio-based
- tensile 644 psi (D412)
- elongation 62%
- tear 294 lbf/in (D5147)
- solids 100% vol (D2697)
- VOC 1 g/L
- reflectance 0.83
- CRRC 0612-0025
- FM Approved
- UL Classified
- Florida Building Code
Warranty
Tremco Plain and Simple / Extended system warranties at 3 gal/sq application rate
AlphaGuard BIO Base Coat
Polyurethane
- CoverageBase coat applied with fiberglass or polyester reinforcement per AlphaGuard BIO system …
- Solids100% by volume
- Film buildPer AlphaGuard BIO/MT installation guide
- WarrantyComponent of Tremco AlphaGuard BIO warranted restoration systems
Full specs & data sheet
Application
Coverage: Base coat applied with fiberglass or polyester reinforcement per AlphaGuard BIO system spec (fully or partially reinforced)
Film build: Per AlphaGuard BIO/MT installation guide
Physical properties
Solids: 100% by volume
- Two-part, 70% USDA BioPreferred certified bio-based polyurethane
- virtually odorless
- low VOC
- for BUR, modified bitumen and single-ply restoration
Warranty
Component of Tremco AlphaGuard BIO warranted restoration systems
AlphaGuard Si 100
Silicone
- CoverageSmooth BUR/MB/single-ply: base 1 gal/sq (16 wet mils) + top 1.5 gal/sq (24 wet mils)
- Solids69% by volume
- Film build16-32 wet mils per coat by substrate
- WarrantyEligible for Tremco system warranties
Full specs & data sheet
Application
Coverage: Smooth BUR/MB/single-ply: base 1 gal/sq (16 wet mils) + top 1.5 gal/sq (24 wet mils); granulated MB/SPUF: base 2 gal/sq + top 1.5 gal/sq
Film build: 16-32 wet mils per coat by substrate
Physical properties
Solids: 69% by volume
- Moisture-cure
- tensile 460 psi (D2370)
- elongation 235%
- solids 69% vol (D2697) / 80% wt
- reflectance 0.87 initial / 0.70 weathered
- CRRC 0612-0344
- UL Classified
- meets ASTM D6694
Warranty
Eligible for Tremco system warranties; TremCare maintenance programs
Geogard Finish Coat
Polyurethane
- Coverage1 gal/100 sq ft per coat (16 wet mils) over Geogard LO Base Coat at 1-2 gal/sq
- Solids69% by volume
- Film build16 wet mils per coat minimum
- WarrantyPart of Geogard restoration system under Tremco unified warranty program
Full specs & data sheet
Application
Coverage: 1 gal/100 sq ft per coat (16 wet mils) over Geogard LO Base Coat at 1-2 gal/sq
Film build: 16 wet mils per coat minimum
Physical properties
Solids: 69% by volume
- One-part moisture-cure urethane
- tensile 3480 psi (D412)
- elongation 313%
- tear 266 lbf/in
- solids 69% vol
- reflectance 0.83
- CRRC 0612-0025
- Miami-Dade
- UL Classified
- Florida Building Code
Warranty
Part of Geogard restoration system under Tremco unified warranty program
Specs from published manufacturer data sheets. Always confirm current specifications and pricing with the manufacturer or your distributor.
Application rates by warranty term and substrate.
AlphaGuard BIO Top Coat
Polyurethane100% volume solids
| Substrate | Warranty term | Total rate | Coats | Dry film | Primer | Source / notes |
|---|---|---|---|---|---|---|
| All approved substrates | Standard | 2 gal/sq | 1 | 32 mils (32 wet) | — | |
| Plain and Simple / Extended warranty | 3 gal/sq | 1 | 48 mils (48 wet) | — |
AlphaGuard Si 100
Silicone69% volume solids
| Substrate | Warranty term | Total rate | Coats | Dry film | Primer | Source / notes |
|---|---|---|---|---|---|---|
| Built-up (BUR) / Modified bitumen (any) / Smooth asphalt / mod-bit / TPO / PVC (either) / EPDM | Base + top coat | 2.5 gal/sq (1.25 avg per coat) | 2 | — | — | Base 1 gal/sq (16 wet mils) + top 1.5 gal/sq (24 wet mils) |
| Granulated mod-bit / cap sheet / Spray foam (SPF) | Base + top coat | 3.5 gal/sq (1.75 avg per coat) | 2 | — | — | Base 2 gal/sq + top 1.5 gal/sq |
Rates transcribed from the manufacturer’s published quick specs and data sheets — September 28, 2026. Premium members load any term straight into the material calculator. Always confirm current specifications with the manufacturer.
Where to buy Tremco coatings.
Primarily sold direct through Tremco's national rep force; a retail-packaged coating line (TremPro, SolarGard, AlphaGuard SI 100) is listed on homedepot.com.
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