Bilco S-20 Galvanized Type S Roof Hatch 36 in x 30 in
Regular price $1,020.00The Bilco S-20 is a 36 in x 30 in galvanized Type S roof hatch for roof access from a fixed interior ladder. It is the right style when a commercial roof needs a preassembled, weather-gasketed hatch with one-hand, counterbalanced operation.
Key Specs
- Model / MPN: S-20
- Brand: Bilco
- Type: Type S roof hatch for fixed interior ladder access
- Opening size: 36 in x 30 in curb-to-curb
- Material: Galvanized steel
- Operation: Counterbalanced cover with automatic hold-open arm
- Weathering: Fully gasketed and insulated cover/curb
- Live load: 40 psf per Type S guide specification
- Sell unit: Each
Compatibility / Fitment
Designed for ladder-access roof openings matching the 36 in x 30 in Type S curb size. Do NOT use it as a ship stair, service stair, equipment hatch, smoke vent, or custom-size curb replacement without verifying the opening and submittal drawings.
FAQs
What opening size does the S-20 fit?
The Type S-20 hatch is specified for a 36 in x 30 in curb-to-curb opening. Confirm both the rough opening and the hinge-side orientation against the project drawings before ordering.
Is it easy to open from a ladder?
Yes. Bilco Type S hatches use a counterbalanced cover and automatic hold-open arm so the user can open or close the cover while keeping one hand on the ladder.
Is the hatch insulated and gasketed?
Yes. The Type S guide specification describes an insulated cover and curb with gasketed, overlapping cover construction for weather resistance.
Can it be used in high-wind coastal work?
Bilco literature and distributor technical pages reference Miami-Dade and Florida approvals for the S-20 family. Verify the exact approval document and project wind requirements before submittal.
What roofing detail matters most?
The curb/flashing interface matters. Coordinate the Bil-Clip or project flashing detail with the roofing membrane so water is directed away from the curb and the hatch warranty is not compromised.
Roof hatches are fall-exposure access points. Coordinate guardrails, ladders, lockout/security, and local code requirements with the project safety plan.
Product Expert Notes
A good pro-grade hatch listing because buyers need exact opening, access style, curb/flashing details, and approval confidence more than lifestyle copy. The S-20 should be sold against drawings, not guessed from a photo.
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