14 - PREPARATION TECHNIQUES IN SPECIFICATIONS WRITIN Flashcards
4 methods of specifying
- Descriptive
- Performance
- Reference Standard
- Proprietary
Under this method of specifying the exact properties of the materials and methods of installation are described in detail without using proprietary or manufacturer’s names
Under this method of specifying the exact properties of the materials and methods of installation are described in detail without using proprietary or manufacturer’s names
___________ are commonly used for products for which no standards exist, on projects where using proprietary names is restricted, and in situations where the Architect/Engineer want to exercise tight control over the specified work.
Descriptive Specifications
Under this method are required end results are specified along with the criteria by which the performance will be judged and the method by which it can be verified.
Performance Specification
The contractor is free to choose the materials and methods that comply with the performance specification.
Performance Specification
They are generally used to encourage the use of new and innovative techniques that may lead to more economical construction
Performance Specification
They are also used to supplement other specification methods.
Performance Specification
Under this method reference is made to an established standard defined by associations very knowledgeable about a certain part or phase of construction.
Reference Standard Specifications
______ are used for “commodity” products in the marketplace, where brand names are not important
Reference standard specifications
Under this method the actual brand names, model numbers and other proprietary information is specified.
Proprietary Specification
They are primarily used for private commercial projects where the owner knows what product they want.
Proprietary Specification
2 types of Proprietary Specification
Close
open
generally prohibit substitution
Close Proprietary Specification
one or more products are specified, and no substitutions will be considered
Close Proprietary Specification
permit substitutions
Open Proprietary Specification