How to Install a Roof Vent. Roof vents are devices that allow the moisture in a house to escape, which prevents the growth of mold and mildew. Roof vents also help to keep wood rot, which is a form of fungal decay, from developing in the house. Roof vents are made of plastic or metal, and are also known as turbine vents.
The National Association of Social Workers (NASW) is the largest professional association of social workers in the world. As the only organization dedicated to advocating for the entire profession of social work, NASW strengthens the social work profession and gives social workers and clients a stronger voice.
National Occupational Standards (NOS) are statements of the standards of performance individuals must achieve when carrying out functions in the workplace, together with specifications of the underpinning knowledge and understanding. NOS are National because they can be used in every part of the UK where the functions are carried out. 2  NOS are Occupational because they describe the performance required of an individual when carrying out functions in the workplace, i.e. in their occupation (as a plumber, police officer, production engineer etc).