Material and product detail. Named systems and products, not generic descriptions — so what’s tendered is what gets built, and what gets built is what was designed.
Performance standards. Fire classification, thermal performance, weather resistance and structural requirements the finished system must meet.
Installation methodology. How the system should be fitted, including sequencing at junctions and compartment lines where fire stopping integrity depends on installation order.
Quality and inspection criteria. What “correctly installed” actually means at each stage, so quality assurance during construction has something concrete to check against.
Preliminaries and site-specific requirements. Access constraints, occupied-building working practices, and anything specific to the building that a generic specification would miss.
A vague or incomplete specification is one of the most common sources of cost overruns and disputes on remediation projects — contractors price against ambiguity, which either inflates the tender or stores up variations for later. A precise specification is what lets you compare tenders on a like-for-like basis and hold a contractor to a clear standard once work starts.
Specification follows façade remediation design and façade engineering, and is the document that goes out for tender.