Laundry and dry-cleaning workers clean clothing, linens, drapes, and other articles, using washing, drying, and dry-cleaning machines. They also may clean leather, suede, furs, and rugs.
Laundry and dry-cleaning workers typically do the following:
Laundry and dry-cleaning workers ensure proper cleaning of clothing, linens, and other articles. They adjust machine settings for a given fabric or article, as determined by the cleaning instructions on each item of clothing.
When necessary, workers treat spots and stains on articles before washing or dry-cleaning. They monitor machines during the cleaning process and ensure that items are not lost or placed with items of another customer.
Sometimes, laundry and dry-cleaning workers interact with customers. They take the receipts, find the customer's clothing, take payment, make change, and do the cash register work that retail sales people do.
Some dry-cleaners offer alteration services. Often, sewers and tailors do these tasks, but some laundry and dry-cleaning workers do them as well. For more information, see the profile on sewers and tailors.
Roofers repair and install the roofs of buildings using a variety of materials, including shingles, asphalt, and metal.
Roofers typically do the following:
Properly installed roofs keep water from leaking into buildings and damaging the interior, equipment, or furnishings.
There are two basic types of roofs, low-slope and steep-slope:
A small but increasing number of buildings now have “green” roofs that incorporate landscape roofing systems. A landscape roofing system typically begins with a single or multiple waterproof layers. After that layer is proven to be leak free, roofers put a root barrier over it, and, finally, layers of soil, in which vegetation is planted. Roofers must ensure that the roof is watertight and can endure the weight and water needs of the plants.
Carpet installers lay carpet in homes, offices, restaurants, and many other types of buildings.
Carpet installers typically do the following:
Carpet installers lay carpet in many types of new and old buildings, including homes, offices, restaurants, and museums. Although installing carpet in newly constructed buildings requires minimal preparation, those who replace existing carpet must first remove old flooring, including any padding, glue, tacks, or staples. In some cases, carpet installers lay carpet over existing tile or hardwood.
Carpet installers work with special tools, including a "knee kicker" to position the carpet and a power stretcher to pull the carpet snugly against walls. When they have to join seams of carpet (for example, in large rooms), they use special heat-activated tape. In commercial installations, they may glue the carpet to the floor or to padding that they have glued to the floor. On steps, they may use staples to hold the carpet in place. They also use carpet knives, carpet shears (scissors), hammers, power sanders, and other tools.
Upholsterers make, replace, and repair coverings on furniture and in vehicles.
Upholsterers typically do the following:
Upholsterers put on covering and cushions to create new furniture and update old furniture and vehicle interiors. Although some upholsterers specialize in either working with old furniture or creating new furniture, most do both.
Upholsterers need to stay current with trends in furniture design and styles. They help choose fabrics that meet their customer's lifestyle, preferences, and needs. For example, upholsterers may help a client who has young children choose a long-lasting and durable fabric for a family room sofa that matches other furniture.
Sometimes they have to choose fabrics that meet building codes--such as being fire resistant--or fabrics that reflect the style of the building. They also may work with interior designers and architects who need furniture for a new building. For more information, see the profiles on interior designers and architects.
Upholsterers may specialize in working on cars and other vehicles. These workers create and replace upholstery for the interiors of cars and other vehicles. They upholster seats, carpet floors, and cover door panels. To replace interiors with another fabric or other material, such as leather, these workers first remove the seats from the vehicle before replacing the upholstery.
Some upholsterers own their business. In these cases, they may do management and administrative tasks, such as managing the finances of their business and taking orders.
Hydrologists study water and the water cycle. They study the movement, distribution, and other properties of water, and they analyze how these influence the surrounding environment. They use their expertise to solve problems concerning water quality and availability, for example.
Hydrologists typically do the following:
Hydrologists use remote sensing equipment to collect data. They or technicians whom they supervise usually install and maintain this equipment.
They also use sophisticated computer programs to analyze and model data. They use sophisticated laboratory equipment to analyze chemical samples collected in the field.
Hydrologists work closely with engineers, scientists, and public officials to study and manage the water supply. For example, they work with policy makers to develop water conservation plans and with biologists to monitor marine wildlife.
Most hydrologists specialize in a specific water source or a certain aspect of the water cycle, such as the evaporation of water from lakes and streams. Some of the most common specialties are:
Groundwater hydrologists study the water below the Earth's surface. They decide the best locations for wells and the amount of water that should be pumped. They are often consulted about the best places to build waste disposal sites to ensure that the waste does not contaminate the groundwater.
Hydrometeorologists study the relationship between surface waters and water in the atmosphere. For example, to predict and prepare for droughts, they study how much rain or snow a particular area gets and how that evaporates.
Surface water hydrologists study water from above ground sources such as streams, lakes, and snow packs. They may predict future water levels and usage to help reservoir managers decide when to release or store water. They also produce flood forecasts and help develop flood management plans.
Some people with a hydrology background become professors or teachers. For more information, see the profile on postsecondary teachers.