**2.1 Excusable delay**

It is the kind of delay that happens as a result of an unforeseen circumstance that neither the contractor nor the subcontractor can control. Excusable delays are caused by the following occurrences: floods, fires, acts of God, general labor strikes, typically harsh weather, etc. [1].

**Figure 1.** *Types of delay in construction projects.*

#### *Risk of Delay in Construction Projects DOI: http://dx.doi.org/10.5772/intechopen.112594*

There are two types of excused delays: compensable and non-compensable. Owner or owner's agents are to blame for compensable delays. Non-compensable delays, however, are brought on by events or persons outside the control of the contractor, the owner, or both. These delays are frequently referred to as "acts of God" because no one is to blame for them [7, 8].

### **2.2 Non-excusable delay**

The foreseeable incident that is within the contractor's control constitutes a nonexcusable delay. Examples of this type of delay include late material deliveries from suppliers, late work completion by subcontractors, incorrect work execution by the contractor or subcontractor, a shortage of labor and equipment, and strikes by workers because the contractor intends to stop paying them on time [1].
