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Milcor Roof Hatch

When you’re not content with just having a door, going for an alternative that makes sense in a technical regard matters. There are many things to consider, especially for roof access. The build quality, strength, ease of entry, weather durability – all of which contribute to having a structure that is sound and will last for years to come.

Milcor answers the need for a reliable roof access hatch to assist in maintenance. There is a wide variety of hatches made of galvanized steel, aluminum, aluminum cover/galvanized steel curb or stainless steel material. The hatches are further weatherproofed with heavy, closed cell, rubber gaskets. Finally, the hatch covers are insulated, keeping in heat during winter and repelling it in the summer.

Easy Complete Opening

Milcor hatch covers open easily to 90 degrees. Operation is assisted by enclosed torsion bar or torsion coil spring operators. Automatic hold-open arms keep doors securely open.

Unobstructed Opening

The clear hatch opening is virtually unobstructed, with only a narrow hold-open arm at one corner and the torsion bar or spring mounted out of the way in the cover or frame.

Complete Seal 

Heavy, closed cell, rubber gaskets factory-applied to the units provide a barrier to weather penetration and drafts. Latching devices with inside and outside handles hold hatches tightly closed.

Choice of Materials 

Hatches are available in several materials, including galvanized steel, aluminum, aluminum cover/galvanized steel curb or stainless steel. Galvanized Steel is painted a with a Cool Eco White Water based paint.

Thermal Efficiencies 

Hatch covers are insulated to keep heat in during winter and to repel the sun’s heat in summer. M, RBS and RCS Models feature composite-design cover construction for insulating efficiency. The rigid polystyrene foam insulation in the covers provides U-factors ranging from 0.093 to 0.173. Milcor roof hatches are also available in RB, RC and RD models with fiberglass-insulated covers providing a U-value of 0.26. Curbs are insulated with 1" thick rigid fiberboard insulation.

High Load Capacity 

M, RBS and RCS models composite cover design provides loadcarrying strengths to 70 psf. RB, RD and RC models can carry live loads up to 40 psf.

Complete Selection

Milcor roof hatches are available in single- and double-leaf configurations, depending upon the size of the units. Single-leaf M and RBS and RD-1 models are available in 3' x 2'-6" and 3’ x 3’ with a torsion bar mounted in the cover. RB, RC and most other RD models are available in all sizes with the springs mounted on the frame, offering added strength with larger sizes. Standard size double-leaf units range from 5' x 11' to 8' x 8'.

Special Units

Hatches can be fabricated in special sizes, shapes, or other modifications to meet special needs. Consult the Milcor factory for details.

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