1 Enter dsconfigad -show. 2  If you are connected to a domain, you will see a printout containing Computer Account and Active Directory Domain. 3  If you are not connected to a domain, nothing will display and your machine does not have a fully qualified domain name.  Start on the desktop.
Organic asphalt shingles have a paper mat or backing with a layer of asphalt added on top. Fiberglass asphalt shingles contain a mat made of fiberglass with a layer of asphalt added on top. Composition shingles are made from materials such as asphalt or asbestos, tar paper, slate, shake, laminate and wood. The combination of these ingredients improves the shingle's strength.
Asphalt shingles tend to last for 20 to 30 years. Composite roofing is a type of asphalt shingle, but it has a few variations that offer different benefits. The base layer of felt is often replaced with fiberglass for greater durability and a slightly longer service life. Recycled plastics are also commonly used for the backing and the top layer of the shingle.