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.
1 Wherever the knob and tube circuit wires pass through building framing lumber a ceramic tube is used to insulate the wire from the wood. 2  These thick ceramic tubes are a good insulator separating electrical wire from wood-if both are un-damaged.