Storm door
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A storm door is a type of
door A door is a hinged or otherwise movable barrier that allows ingress (entry) into and egress (exit) from an enclosure. The created opening in the wall is a ''doorway'' or ''portal''. A door's essential and primary purpose is to provide security b ...
that is installed in front of an exterior access door to protect it from bad
weather Weather is the state of the atmosphere, describing for example the degree to which it is hot or cold, wet or dry, calm or stormy, clear or cloudy. On Earth, most weather phenomena occur in the lowest layer of the planet's atmosphere, the ...
and allow
ventilation Ventilation may refer to: * Ventilation (physiology), the movement of air between the environment and the lungs via inhalation and exhalation ** Mechanical ventilation, in medicine, using artificial methods to assist breathing *** Ventilator, a ma ...
. Storm doors generally have interchangeable
glass Glass is a non-crystalline, often transparent, amorphous solid that has widespread practical, technological, and decorative use in, for example, window panes, tableware, and optics. Glass is most often formed by rapid cooling (quenching) of ...
panels and
window screen A window screen (also known as insect screen, bug screen, fly screen, flywire, wire mesh, or window net) is designed to cover the opening of a window. It is usually a mesh made of metal, fiberglass, fibreglass, plastic wire, or other pieces of ...
panels to provide visibility and prevent flying
insect Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body ( head, thorax and abdomen), three pairs ...
s from entering the home.


Construction

Storm doors are typically made from
wood Wood is a porous and fibrous structural tissue found in the stems and roots of trees and other woody plants. It is an organic materiala natural composite of cellulose fibers that are strong in tension and embedded in a matrix of lignin th ...
,
aluminum Aluminium (aluminum in American and Canadian English) is a chemical element with the symbol Al and atomic number 13. Aluminium has a density lower than those of other common metals, at approximately one third that of steel. It has ...
and
plastic Plastics are a wide range of synthetic or semi-synthetic materials that use polymers as a main ingredient. Their plasticity makes it possible for plastics to be moulded, extruded or pressed into solid objects of various shapes. This adaptab ...
s such as
vinyl Vinyl may refer to: Chemistry * Polyvinyl chloride (PVC), a particular vinyl polymer * Vinyl cation, a type of carbocation * Vinyl group, a broad class of organic molecules in chemistry * Vinyl polymer, a group of polymers derived from vinyl m ...
( PVC) and
fiberglass Fiberglass (American English) or fibreglass (Commonwealth English) is a common type of fiber-reinforced plastic using glass fiber. The fibers may be randomly arranged, flattened into a sheet called a chopped strand mat, or woven into glass cloth ...
. There are three basic types of storm doors: full-view, retractable screen, and ventilating. Full-view storm doors typically include a full glass panel and most an interchangeable full screen. Retractable screen storm doors feature a screen that is rolled up into the frame of the storm door when not in use. Ventilating storm doors generally include a full or half screen that is always in position on the storm door.


Wood

Wood was the original material from which storm doors were made. While wooden screen doors can be visually the most appealing, the wood itself requires painting or some other form of coating to protect it from the weather. Wooden screen doors less than one inch thick are used primarily as screen doors with no glass installed. Using wood thicker than one inch allows the storm door frame to accommodate glass panels. The door also becomes more rigid and durable as the thickness increases.


Aluminum

The main advantage of aluminum over wood as a storm door material is aluminum's resistance to environmental degradation. Aluminum storm doors do not need to be painted frequently to protect them from the elements. Aluminum storm doors are available in a variety of thicknesses. All of these thicknesses can accommodate interchangeable glass and screen panels. The least expensive storm doors are the thinnest. As the storm door frame gets thicker, the door frame becomes more rigid. The strength and rigidity of the door is limited however, by the relatively brittle aluminum alloy corners that hold the frame together. If the door gets blown open during a storm, the corners can crack and the door will lose its strength. The corners however, can be replaced if parts can be found.


PVC and fibreglass

Materials such as PVC and fibreglass offer the most corrosion resistance of all when used in a storm door. They can also be moulded in such a way as to realistically mimic wood grain to provide the appearance of a wooden storm door. PVC or "vinyl" storm doors often require internal steel frames to provide the necessary strength to the door. However, extruded PVC doors offer extraordinary strength. Fibreglass storm door frames are extremely strong, but the material is more expensive. Both PVC and fibreglass storm doors incorporate chemicals to slow the effects of ultraviolet radiation from the sun. UV radiation tends to make plastics become brittle. Again thicker doors have an advantage. New technology has made extruded PVC doors more durable. This product is not likely to yellow, peel, crack, contract, expand or warp. Since it is made of PVC, this product does not need any painting even if scratched. PVC doors are welded at the corners, and it is impossible for them to fall apart, separate or go out of square. The welding makes them extremely hard and durable. Because of the welding, there are no screws that will create wear and tear and separation at the corners.


Types

Storm doors come in three different styles: * Full view. A full view storm door means that there is a full length glass panel that has to be physically changed out if a screen is wanted in it. The unused panel of glass or screen is then stored for future use. * Ventilating. A ventilating style means that there are two glass panels and 1–2 screen panels in the door at the same time. The glass panel(s) move up or down in order to reveal the screen. This is convenient if cross ventilation in the house is desired without the inconvenience of removing and storing a glass or screen panel. * Rollscreen. This is a relatively new hybrid of the full view and ventilating storm doors. The screen is connected at the top of the storm door's window, and when not in use it automatically rolls up on a tensioned dowel in the top of the door. This gives a full-view door when the screen is not in use, and a ventilating door when it is.


See also

*
Screen door A screen door can refer to a hinged storm door (cold climates) or hinged screen door (warm climates) covering an exterior door, or a screened sliding door used with sliding glass doors. In any case, the screen door incorporates screen mesh to blo ...
*
Storm cellar A storm shelter or storm cellar is a type of underground bunker designed to protect the occupants from violent severe weather, particularly tornadoes. They are most frequently seen in the Midwest ("Tornado Alley") and Southeastern United States ( ...
*
Storm drain A storm drain, storm sewer (United Kingdom, United States, U.S. and Canada), surface water drain/sewer (United Kingdom), or stormwater drain (Australia and New Zealand) is infrastructure designed to Drainage, drain excess rain and ground water ...
*
Storm room A safe room or panic room is a fortified room that is installed in a private residence or business to provide a safe shelter, or hiding place, for the inhabitants in the event of a break in, home invasion, tornado, terror attack, or other thre ...
*
Storm window Storm windows are windows that are mounted outside or inside of the main glass windows of a house. Storm windows exist in North America, but are uncommon in continental Europe, where double, triple or quadruple glazing is prevalent. Storm windows ...


References

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