Definition

the specifications and working drawings during the construction process, and show the exact dimensions, geometry and location of all elements of the work completed under the contract.”

As-built survey

ASHRAE energy audit

The As-Built Survey is an update of the original ALTA/NSPS survey completed prior to initial closing and construction start with an new HUD form 91073M Surveyor's Report and Certification completed not more than 120 days prior to final endorsement bringing all survey matters up to date consistent with completed construction work.

The American Society of Heating Refrigeration and Air Conditioning Engineers (ASHRAE) publishes standards for heating and air conditioning measurement and construction. Among the standards ASHRAE has issued is the required scope of work and procedures for energy audits at three levels, I through III. Only Level II and III audits are referenced in HUD insured mortgage work. Key features of Level II audits include:

• a. benchmarking existing use;

• b. identifying specific components, assemblies, appliances, equipment or systems that use, move or transmit energy;

• c. allocating benchmarked usage to these same items;

• d. recommending specific repairs, replacements and alterations to these items likely to reduce energy consumption;

• e. estimating per item and total cost of such items together with the per item and total reduction in energy use and cost resulting from the recommendation.

In addition, a Level II Energy Audit should calculate the number of years required for the estimated annual energy savings to equal or exceed the cost of the recommendation for each item (the payback period). Level III audits provide an investment grade report that adds the following:

• a. whole building computer simulation (modeling) calibrated with field data;

• b. modeling of conservation measures and corresponding changes in energy consumption; and

• c. bid-level construction cost estimating.

ASHRAE standard 90.1

The American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE) publishes Standard 90.1 which is the recognized guide for design, modeling, construction, testing, of heating, ventilating and air conditioning systems of most buildings, except low-rise residential buildings. It offers, in detail, the minimum energy-efficiency requirements for design and construction of new buildings and their systems, new portions of buildings and their systems, and new systems and equipment in existing buildings, as well as criteria for determining compliance with these requirements. Appendices to the Standard provide detailed guidance and procedures for various calculating, equipment sizing, and related techniques

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