Internal welded (1 piece) aluminum frame with handle bar and lift mounts (resists torsional twist).

All fabricated metal parts, includes hinges (5 pieces)

White Epoxy Powder coated.

All fasteners and internal latch (lockable & adjustable), Stainless Steel.

All units equipped with triple hollow, white frost - free frame.

Durable rideau brown or white aluminum exterior finish.

AVAILABLE IN THREE STANDARD SIZES:

MODEL #: 3676 Rough opening 30½"x70½"
MODEL #: 4280 Rough opening 36½"x74½"

* Roof Hatches instead of Doors available in all standard acrylic sizes also.

Roof Hatches can replace existing fixed skylights for access to the roof for maintenance or for use as an emergency escape.

CUSTOM SIZES AVAILABLE.

The 2 x 8 (minimum) wood curb, which in this case is used as the sash, must be fastened firmly with screws and squared-up on the roof with straight sides. Use only good lumber. EXACT FRAMING IS VERY IMPORTANT.

The curb should be clear of other obstructions, minimum 2" around the perimeter.

The top surface of the curb should be covered with cap flashing. "J" beaded drywall should be fitted ¾" below top of the curb. The two(2) lower lift mounting blocks (3" x 3") must be positioned in the same location across one another approximately 12" from the header. (This will avoid unnecessary twisting.) The given location measurements of the blocks are only a guide-line and can be modified to change fully open position. DO NOT increase total swing angle over 80º. Damage to the hinges may result.

Due to wind forces applied when hatch is left open, care must be taken in every step, to ensure lasting performance.

ROOF SLOPE MAY NOT EXCEED 15/12 (50º)!