EPDM Rubber Roofing System — Explore Every Layer in Interactive 3D

The Same Sequence Our Crews Follow

How It's Installed — Step by Step

1. 1
   Existing building & structural deck. Existing commercial building — parapets in place, equipment craned aside, steel deck exposed.
2. 2
   Polyiso insulation — layer 1. First rigid polyiso layer across the deck.
3. 3
   Polyiso insulation — layer 2 + plate fasteners. Second layer at 90° with offset joints, plate-fastened through both layers.
4. 4
   Cover board. Glass-mat gypsum covers insulation and fasteners — the bonding surface.
5. 5
   Bonding adhesive applied. Adhesive rolled onto BOTH surfaces and allowed to flash off until tacky — too wet won't grip, too dry won't bond.
6. 6
   EPDM membrane rolled out & pressed in. 60-mil rubber membrane pressed in with a weighted roller for full contact. No fasteners — fully adhered.
7. 7
   HVAC curb flashing. Uncured EPDM flashing wraps up each curb side and over the top, bonded with seam tape — EPDM doesn't heat-weld.
8. 8
   HVAC unit set back on curb. Unit craned back onto the flashed curb and reconnected.
9. 9
   Roof drain installed. Clamping ring compresses an EPDM target sheet into the drain bowl.
10. 10
    Pipe penetration boot. Pre-formed EPDM boot bonded to the field with seam tape, stainless clamp at the pipe.
11. 11
    Parapet wall flashing + coping. Uncured EPDM up the wall, termination bar, metal coping cap.
12. 12
    Edge metal + final inspection. Perimeter drip edge; every taped seam inspected before handoff.

Press ▶ Play Install in the 3D model above to watch every one of these steps animate in order.