Irma is of Germanic origin, and it is used mainly in the English, French, German, Indian, Italian, and Spanish languages. The name is derived from the short form of German names with the first element irmin (meaning 'whole, immense, universal') or ermen and starting with 'Irm-', such as Irmingard.
Wood framing, or light frame construction, is the assembly of dimensional lumber or engineered wood lumber that is regularly spaced and fastened together with nails to create floor, wall and roof assemblies. Wood is the most common material used within the construction industry today.
The most common framing materials used for windows and patio doors are wood, vinyl, and aluminum. More recent introductions to the market include fiberglass and a number of composites. Manufacturers also combine materials commonly, producing vinyl- or aluminum-clad wood products, wood-clad vinyl products and other combinations to meet a variety of demands for performance and aesthetics.