Product Details
Solid Oak Internal Fire Doors for Residential Buildings with Height
Greater Than 54m
Production Description
A residential building with a building height greater than 100m
shall be provided with a refuge floor. The height of the ground
floor of the first refuge floor (room) to the fire rescue site on
ground shall not exceed 50m, and the height between the two refuge
floors shall not be greater than 50m;
For residential buildings with a building height greater than 54m,
each household shall have a room that meets the following
requirements: it should be placed on the external wall and should
be provided exterior open window. The fire resistance of the
interior and exterior wall should not be lower than 1.00h. The door
of the refuge room should be Grade B fire door, and the fire
integrity of the exterior window should not be less than 1.00h.
In order to enhance the safety of high-rise residential buildings,
the requirements for the installation of refuge floors for
high-rise residential buildings were added to the new Code for Fire
Protection of Building Design, which was implemented on May 1, 2015
Fire Resistance Rating Classification
Name | Fire Resistance Performance | Code |
Fully Heat Insulated Doorsets(Class A)
| Fire Insulation ≥0.50h Fire Integrity ≥0.50h | A0.50 (Grade C) |
Fire Insulation ≥1.00h Fire Integrity ≥1.00h | A1.00 (Grade B) |
Fire Insulation ≥1.50h Fire Integrity ≥1.50h | A1.50 (Grade A) |
Fire Insulation ≥2.00h Fire Integrity ≥2.00h | A2.00 |
Fire Insulation ≥3.00h Fire Integrity ≥3.00h | A3.00 |
Partially Heat Insulated Doorsets(Class B)
|
Fire Insulation ≥0.50h | Fire Integrity ≥1.00h | B1.00 |
Fire Integrity ≥1.50h | B1.50 |
Fire Integrity ≥2.00h | B2.00 |
Fire Integrity ≥3.00h | B3.00 |
No Heat Insulated Doorsets(Class C)
| Fire Integrity ≥1.00h | C1.00 |
Fire Integrity ≥1.50h | C1.50 |
Fire Integrity ≥2.00h | C2.00 |
Fire Integrity ≥3.00h | C3.00 |
Company Profile
Henan Zhongwo Fire Science and Technology Co., Ltd, founded in
1995, is a rapid expanding manufacturing company in fire door
industry. After 24 years development Zhongwo has become a leading
fire door manufacturer all over in Central China. We are always
keeping good cooperation relationship with many high-end real
estate builders such as Green Garden and Evergrand and many
reaseach institutes such as The Architectural Design And Research
Institute of Henan Province. And we have always been enjoying good
reputation around our partners domestically and internationally.

Our factory concentrate on the production of all kinds of fire
doors from different materials such as galvanized steel, pine wood,
chinese fir wood, 201/304 stainless steel and also fire resistant
floating glass. Steel fire door is our highlight product, with
advanced surface treatment such as powder coating, heat transfer
printing and copper wiredrawing we win great advantage for our
steel fire doors of high wear tolerance,high decoration
performance, anti-damp performance and anti-rusty character and so
on. As far as wooden fire door is concerned, we have painting free
wooden fire door series, baking paint wooden fire door series and
refuge room wooden fire door series.Now we can supply more than
100,000 fire door sets a year in our more than 50000㎡ existing
workshop. We also have a new factory under construction which
covers a field of 30 arces in Minquan of Shangqiu City,which is
200km away from our existing factory. By then our annual production
ability can reach 300,000 fire door sets.
Our production ranges also to fire roller shutters, fire windows
and smoke curtains of various customized sizes, colors and
materials.

Zhongwo attaches great importance to technical explore and
development of new products and technik. We organize a specialized
technical panel who all have more than 8 years of R&D
experiences in fire door industry for development of new products
and technik. Thanks to their hard work we can lauch more than 5
patents a year.
Zhongwo always adheres to the value system of “creating value for
customers, building platform for employees and developing brand for
Zhongwo”. Under such value system, Zhongwo keeps looking for
excellent partners to influence ourselves to become better. We keep
striving in order to be a fixed star in the development history of
door industry.
