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[Construction – Section 24]

FIRESTOP PILLOWS

It is also a physical impossibility to prevent smoke migration through the interior of a cable bundle, if the bundle is not opened up and sealed on the inside during the installation of any fire stop, regardless of whether the fire is intumescent stop or not. No intumescent can be expected to spread between multiple layers of cables, from the outside towards the inside. If viewed in plan view, each cable represents a circle. In a bundle, as cables are in contact, there are necessarily empty spaces between cables, which invite smoke and heat transfer. An intumescent fire stop may reach somewhat into the first layer of cables but to push beyond this takes more force than can be reasonably expected to be generated through an intumescing process. Theoretically, after one calculates the compression rate to determine just how many pillows should be installed, then one has to install the mesh, or grating, or grid, then the pillows. When one uses the mesh, mechanical fasteners are required, including, anchors, bolts, etc.

The last type of pillow comes from an entrepreneur from Europe, who has been private labeled it for other companies all over the world. Its basic intumescent material is foam, which can be extruded into various shapes. For countries that use a hose-stream test, the fomox is enforced with intumescent graphite, whereas for those who dont use a hose-stream, this ingredient is omitted. The product is basically intumescent foam rubber.

FIRE DOORS

Fire doors are a type of door, or closure used as a passive fire protection item within buildings to prevent the spread of fire. It is usually the only means of allowing people to pass through a wall fire-resistance rated assembly.
Fire doors are made of a combination of materials, such as: steel, gypsum as an endothermic and fill vermiculite boards. Together, these components form a system which holds the rating.
Apart from the door leaf, there is the doorframe, the door hardware and the structure that holds the fire door assembly in place.

Door Ware
Door hardware also includes: manual or automatic closing devices, locks, latches and hinges also. 

The Seals
Edges of a fire door usually need to have fire rated seals which can be composed of an intumescent strip. Which expands nearly 500 times under heat; Neoprene weather stripping. 

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Klimalar

KLİMALAR Klimalar bir mekanın havasını düzenlemeye, uygun derecelerde olan ve rahat edilebilecek hava koşullarını sürekli olarak yaratmaya ve devam ettirmeye yarayan cihazlardır. Mekanın h...