B-RHA Model — Aluminum Roof Hatch

Downloadable shop drawings and 3-part CSI Specifications for these products located at www.babcockdavis.com/apidx.htm.

Babcock-Davis roof hatches are designed, engineered, and built for years of dependable roof access. To meet the demands of an exterior application, the doors are manufactured from aluminum. The curb and cover are insulated. We’ve fastened a continuous extruded thermal EPDM gasketing to the underside of the cover. When in the closed position this gasket creates a weather resistant seal between the cover and curb. The curb height is 12” with cap flashing allowing the installer to tuck their roofing material or membrane behind it, also ensuring a weather resistant seal. The hatches come standard with a powder mill finish. Concealed hinge provides tamper proof protection.

SPECIFICATIONS FOR ROOF HATCHES

Cover & Liner:
11-gauge aluminum cover with 18-gauge aluminum liner.
Curb:11-gauge aluminum with 12” self-flashing curb.
Optional: Double wall curb at exterior.
Hinge:Heavy duty zinc plated steel integrated with counter balance spring.
Latch:Slam latch with interior and exterior turn handles. All double leaf hatches and single leaf hatches that exceed 60" hinge dimension are manufactured with zinc coated steel 2-point latch system.
Optional: T-306 stainless latch.
Springs:Greased compression springs enclosed in telescopic tubes.
Optional: T-316 stainless steel telescopic tubes.
Hardware:Zinc plated steel hold open arm(s) with vinyl grip, inside and outside padlock hasps, and continuous extruded thermal EPDM gasketing.
Optional: T-316 stainless steel telescopic tubes.
Insulation:1” thick rigid fiberboard at curb perimeter and 1” polystyrene in cover.
Mounting Flange:3½” on single wall curb, 2½" on double wall curb.
Finish:Mill finish.

STANDARD SIZES FOR ROOF HATCHES

Width x Height
(inches)
Width x Height
(mm)
24 x 24
610 x 610
30 x 30
762 x 762
30 x 54
762 x 1372
30 x 96
762 x 2438
36 x 24
914 x 610
36 x 30
914 x 762
36 x 36
914 x 914
36 x 96
914 x 2438
48 x 48
1219 x 1219
48 x 60*
1219 x 1524
48 x 96*
1219 x 2438
60 x 60*
1524 x 1524
60 x 72*
1219 x 1828
60 x 96*
1524 x 2438
72 x 72*
1828 x 1828
72 x 96*
1828 x 2438
96 x 96*
2438 x 2438

All units are hinged on the second dimension (length).
Rough opening required = hatch size.
*Double door construction.


Babcock-Davis Hatchways
9300 73rd Avenue N.
Brooklyn Park, MN 55428
Tel: (888) 412-3726
Fax: (888) 312-3726
Website: www.babcockdavis.com
E-mail: info@babcockdavis.com