The main difference between the fire hatch and the door is the installation site and the overall dimensions, they are installed if the opening of the attachment to the attic is small. As a rule, a staircase with high fire resistance indicators is included in the kit.
Appointment
Prevent the spread of fire, do not allow the fire to go to the roof or from the attic inside the room for some time.
Their presence is necessarily:
in fire hazardous rooms;
offices, hotels, banks;
state institutions;
Complete and basic requirements
Fire -based hatch on the attic consist of a canvas and boxes. The canvas is made of sheets of steel, inside it is equipped with fire -resistant material, which counteracts the flame. A special seal is installed around the perimeter, designed to protect the canvas from high temperature and penetration of smoke products. Requirements for the fire safety of this product are regulated by SNiP 2.01.02-85.
The exit hatches of the attic or roof should correspond to firefighters, the 2nd type — it is permissible to use wood protected by non -combustible materials from all sides, with a thickness of 4 mm. Or wood that has undergone deep impregnation with antipyrens or other fire -retardant processing, which provides compliance with the requirements that are presented to difficult materials.
The minimum fire resistance limit, presented to fire products that are installed in the openings, according to SNiP 21-01-97-60 minutes, EI 60, EI 30 or EI 15.
Documents
Fires of Lukina attic are necessarily equipped with a document containing data on the tests, it also records indicators regarding the ultimate resistance to heating. In accordance with regulatory requirements, each fire hatch must have:
marking plate with basic characteristics;
passport and certificates of conformity of the product confirming its quality and compliance with regulatory requirements.
Features of installation
Most often, hatches on the attic are installed in a horizontal plane, so several rules should be taken into account:
The hatch is installed exclusively by loops up, the lid should be opened up;
The box with this position of the canvas must be strengthened, it must be an angular type;
In case of standardization of additional loads, the sash is necessary;
Installation should be performed with minimal gaps;
the box must be equipped with special loops.