Overhead Sectional Door
What Is Overhead Sectional Door
An overhead sectional door is a specific type of large egress system. The most common place to find a sectional door is on a home or residential application. However, many business and commercial properties can also benefit from this type of door. While there are a number of different kinds of garage doors on the market today, the overhead sectional garage door has its own unique features that set it apart.
Advantages of Overhead Sectional Door
Space saving
Overhead sectional doors open vertically and are suspended under the ceiling, meaning that the space outside and inside of the garage can be utilised.
Variable fitting
The shape of the opening is not important when the door itself does not pass through the opening, meaning overhead sectional doors are ideal for arched, angled or odd shaped openings.
Wider passage
The design of the overhead sectional door gives maximum drive through width and height when open unlike other garage doors.
Sealed all round
Flexible, weather resistant seals on all 4 sides keep out the wind, rain and dust.
Why Choose Us
Our factory
Established in Longgang, Shenzhen Special Economic Zone in 2008. Unique geographical environment; Convenient transportation, complete supply chain. After years of unremitting efforts, the company has become a national level high-tech enterprise that integrates research and development, production, and sales. More than 30 technical research and development personnel, with over 300 employees. With a factory building of 20000 square meters.
Our certificate
There are 4 global invention patents and over 20 computer software copyrights. We have passed the ISO9001 quality system certification and the National Military Standard Quality Management System 9001c certification.
Our service
Controlling product production and market, timely communicating with customers in case of after-sales issues, and providing solutions. Focus on strategy and target positioning to target specific consumer areas and provide unique needs for the product.
Our product
We have high speed door, overhead sectional door, rolling door, hospital door, folding door and so on.
Basic Knowledge About Overhead Sectional Door
Overhead sectional doors are one of the highest performance doors available for their sealing, insulation and general security properties. Different models with sizes up to 10000mm wide and 7000mm high and more window options than usually ever required, as well as every ral colour option available, the sectional door offers one of the very best solutions for most door openings and is very competitive in pricing against almost every other option. A sectional door will provide many more years of trouble free operation than nearly every other type of industrial door as the stress on scomponents is so evenly spread and the mechanism ensure the door balances to make easy operation possible. With regulations regarding building insulation and air tightness the sectional door fits the bill with some models capable of delivering a u-value of up to 0.51 w/(m²·k).
Overhead sectional doors open vertically upwards, creating clear space in front of and behind the door. Inside the building too, useful space is not wasted because the door sections can be parked underneath the ceiling, parallel to the ceiling or vertically on the wall depending on the tracking configuration specified. Since the doors are fitted behind the opening, the clear passage width can be used in full. This virtually excludes any risk of damage. Sectional doors are generally available as single skin galvanized steel panels right through to double skinned foam filled insulated panels of up to 80mm thick. The strong insulating core of 100 % cfc-free polyurethane rigid foam produces an exceptionally good insulating value. The thick insulating core of high-grade polyurethane rigid foam is applied evenly in a continuous computer-controlled process. The result: A material composite that will guarantee a long service life.
Sectional doors can be produced up to 10 metres wide and 7 metres high in the spu 67 model but most other models will go up to 8 metres wide and 7 metres high so there is usually a sectional door available for the opening created and excellent wind ratings too. If maximum use of daylight, good thermal insulation and a high level of stability are called for, the hormann tap 40 door can meet these requirements threefold: On account of the cold-repelling 16 mm thick double glazing, the aluminium extrusions with thermal breaks and the double-skinned pu foam-insulated steel bottom section (100 % cfc-free). This combination produces a remarkable thermal insulation value.
The aluminium extrusion has an overall thickness of 42 mm in . The outer and inner shells incorporate thermal breaks with glass fibre reinforced polyamide ribs and are at the same time positively bonded. This ensures a high degree of stability and protects the structural fabric. To ensure that the main sectional door does not always have to be opened to allow personnel traffic to pass through, wicket pass doors present a very practical solution. The Hörmann wicket door without trip-free threshold prevents tripping and makes it easier to drive over. This is a far better solutio than the very clumsy roller shutter door personnel door option. Power-operated doors feature a VL 2 leading photocell with two sensors which causes the door to reverse on encountering an obstruction well before contact is made. The wicket door contact ensures that the main door can only be opened when the wicket door is closed. In certain circumstances Hörmann wicket doors with a trip-free threshold up to a width of 5500 mm fulfil the requirements of an emergency escape door.
Important Tips for Maintenance and Cleaning of Your Overhead Sectional Door
Regular inspections
Regularly inspect the guide rails, hinges, and other moving parts of the door. If there are signs of wear, tear, or looseness, take immediate action.
01
Lubrication
It is important to lubricate the moving parts of sectional doors. This ensures smooth opening and closing of the door. However, be careful not to over-lubricate as it may lead to grease buildup and affect the smooth operation of the door.
02
Cleaning
Regularly clean the exterior and interior surfaces of the door. This is not only important for the long life of the door but also aesthetically crucial. With some soapy water and a soft brush, you can easily remove dirt and stains.
03
Air filter check
Sectional doors provide ventilation for your garage. Over time, the air filters can get clogged with dust and dirt. Therefore, regularly check the air filters and clean or replace them as needed.
04
Insulation check
If your sectional door is an insulated model, check for any signs of damage or wear on the insulation. If issues arise, take immediate action to protect its insulating properties.
05
Each overhead sectional door is made up of a number of individual horizontal sections, stacked one on top of the other with galvanized steel hinges holding them together. This is where the name ‘overhead overhead sectional door’ comes from. The number of sections, their height, width and what each section contains is determined by the application as well as by the assembly’ s requirements and limitations. Sections can be made of steel, aluminum, wood, vinyl, or composite material. Overhead doors, in particular, are manufactured with either steel or aluminum for strength and longevity.
The track and spring system of a overhead sectional door is also unique to this door type. overhead sectional doors use torsion or extension springs to counter the weight of the door and allow users to open and close them easily. For larger doors, or for applications that need them, motors can also be installed to make operating a overhead sectional door even easier. The track system of a overhead sectional door is available in a number of lift options depending on the headroom space available. Typically a overhead sectional door will have a track system that will move the door vertically upwards, though a radius and back into the room horizontally overhead. An operable overhead sectional door will always have a track system as part of the assembly.
Customizable Overhead Sectional Door Design
Outer surface material
This can be fabricated in zinc-coated steel or anodised-aluminium. This can be finished to a high quality with a polyester powder covering in a wide choice of ral colours. In addition, full colour logos, text and custom graphics can be added as an option.
Insulated to protect from heat loss and sound
As required by building regulations or energy efficiency criteria, this is achieved by adding a high-density cfc-free foam between the inner and out surfaces of the overhead sectional door. This provides it with an impressive thermal u value of 0.45 w/sq m k and a sound reduction value of 25 db. Energy and sound protection is further enhanced by long-lasting seals around all edges. This provides for a more comfortable draft-free and water-ingress free internal working environment. When there is a large surface area, wind can be a problem so larger doors are internally braced to prevent buckling in high winds.
Safety
The overhead overhead sectional doors are designed and installed to meet the relevant safety standards and operator training can also be provided to ensure that the doors are part of a safe and secure working environment.
Full flexibility in dimensions
Doors are available with a maximum aperture area of 48 sq m.
Vision panels
Transparent single or double glazed acrylic or poly-carbonate windows can be fitted into one or multiple panels to allow vision through the door. This is a key consideration for allowing daylight into buildings as well as for safety and security considerations. Options include square or rounded corners.
Manual or motorised opening or closing
Manual operation is cost-effective and is an excellent option for doors that are operated infrequently. The doors are counter-balanced making them easy to use via pull cord or chain pulley option. Larger doors are however usually electrically operated from either 230vacor 400vac sources via deadman or automatic operation. High speed impulse operation is increasingly being requested by our industrial customers who want to minimise heat loss from the building. This automatic operation uses photocell sensors on the bottom edge of the door to allow the door to be opened just sufficiently for the vehicle to pass under. It incorporates safety features that reverses the closure if it detects an obstacle.
Wicket or personnel door
Where frequent pedestrian access is required, it is worthwhile considering the option of a ‘pass door’ as this eases access without the associated heat loss and wear and tear of operating the full door. Doors can be left or right handed, however they always open outwards. They can be fitted with an automatic closer if required.
Lifespan and maintenance
Industrial overhead overhead sectional doors are designed to have a lifespan in excess of 50,000 cycles, however regular scheduled maintenance is recommended to minimize breakdown and extend the life of each door. Whilst rare, it is not uncommon for doors to be hit and damaged by vehicles. Fortunately, being sectional by nature, in most cases only the damaged sections require replacement. This minimises repair time and cost.
How Operation Works and Sealing of Overhead Sectional Door
In comparison to the up and over door, traditionally popular in the uk, overhead sectional doors are generally easier to open as the operating function is quite different as the spring mechanisms give assistance nearly all the way through the opening cycle. The overhead sectional door is assisted in operation by using either torsion or tension springs situated either at the sides or above the door. Hormann offer both types and the use is dependant upon the overall weight of the door panels used, overhead sectional door benefits short driveways
On most standard height domestic sectional garage doors, the overall door is split into 4 panels and they are available up to 5500mm wide. On heights over 2250mm the door will have 5 panels and so on up to 3000mm. Due to the operation of overhead sectional doors, they can be fitted into garage openings that may be slightly too small in width or height for a standard size door. This also means that all the standard rubber weatherseals fitted around the perimeter of the frame work very effectively when the door is closed. The bottom edge seal is quite large and is very effective on a smooth concrete floor for sealing against dust, leaves, mice, etc.
Most sectional garage doors sold are double skinned steel with an insulating foam infill inbetween the steel sections creating a tough, insulated panel. This provides excellent thermal insulating values as well as great security and resistance to knocks and bangs, quite unlike single skinned doors. Each door section also has a patented anti finger trap protection with a further rubber seal built into the section at the top of the panel, ensuring a good seal between the horizontal sections.
Established in Longgang, Shenzhen Special Economic Zone in 2008. Unique geographical environment; Convenient transportation, complete supply chain. After years of unremitting efforts, the company has become a national level high-tech enterprise that integrates research and development, production, and sales. People oriented, customer oriented, united, friendly, and common development. There are over 30 R&D personnel and over 300 employees. There are 4 global invention patents and over 20 computer software copyrights. We have passed the ISO9001 quality system certification and the National Military Standard Quality Management System 9001c certification. More than 30 technical research and development personnel, with over 300 employees. With a factory building of 20000 square meters.
certificates
FAQ
As one of the leading overhead sectional door manufacturers and suppliers in China, we warmly welcome you to wholesale overhead sectional door made in China here from our factory. All customized products are with high quality and competitive price.