New Life for Old Metal Roofs
Instead of retiring an aging metal roof, consider another option from Dow Roofing Systems: A durable, lightweight Metal Retrofit Roofing System using TIEMPO™+ 2000 TPO roofing membrane. The system is specifically engineered to retrofit worn metal roof decks, including standing seam, flat seam or corrugated metal roofs. TIEMPO™+ 2000 TPO membrane has excellent weatherability, creates strong seams and can be installed year-round, making this roofing system effective, efficient and budget smart.
Maximum seam strength
In the Metal Retrofit Roofing System, the TIEMPO™+ 2000 membrane is heat weldable, a strong seaming method that fuses the materials together, creating one homogeneous bond. Hot-air welded TIEMPO™+ 2000 membrane seams can be:
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Up to three times stronger than butyl tape seams
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Significantly faster to install
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Less expensive to install
Related Information
TIEMPO™+ 2000 TPO Membrane Mechanically Attached Metal Retrofit System Guide Specification (960KB PDF)
Metal Retrofit Roofing System Sell Sheet (268KB PDF)
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installation
The simple three-step installation transforms a worn metal roof into a fresh, durable roof that adds years of service life.
- Approved extruded polystyrene or polyisocyanurate insulation is loose-laid between the standing seams of existing roof deck.
- Cover board or insulation board is mechanically attached over the top to provide a uniform and flat substrate.
- TIEMPO™+ 2000 membrane is installed over the insulation and mechanically fastened using Dow Purlin Fastener & Plate.
components
Dow Roofing Systems provides a full line of component products designed to work together to complete the Metal Retrofit Roof assembly. Your Dow Roofing Systems sales representative can help select the best products for your metal retrofit roof needs.
| Metal Retrofit Components |
| Membrane |
| TIEMPO™+ 2000 TPO |
| Insulation and Cover Boards |
| STYROFOAM™ Brand Extruded Polystyrene Foam Insulation |
| TERMICO™ Polyisocyanurate Insulation |
| DensDeck† and DensDeck† Prime Cover Boards |
| Fasteners and Seam Plates |
| Dow Purlin Fastener & Plate |
| Adhesives and Sealants (specific to membranes and insulation) |
| Dow 2000 Membrane Adhesive (Low-VOC) Dow 2000 Membrane Adhesive (Solvent-Based) Dow 2000 Insulation Adhesive (2-Part Urethane) INSTA STIK™ Quik Set Commercial Roofing Adhesive Dow 2000 Edge Sealant Dow 2000 Multi-Purpose Sealant (36KB PDF) |
† DensDeck is a trademark of Georgia-Pacific