Product Evaluation ACT 380 1 Objective O Emphasize the importance of proper product evaluation and selection O Develop insight into effective procedures, methods, and techniques in evaluating and selecting products 2 Major Topics O Establish the Requirements O Safety & Protection O Functional Characteristics O Material Compatibility O Codes, Standards, and References O Identify Products O Manufacturers O Code Requirements O Installation Requirements O Product Characteristics O Evaluate Products O Installation Requirements O Maintenance O Qualifications O Price O Warranty 3 Product Performance Requirements O Safety and Protection O Fire safety O Life Safety (other than fire) O Property Protection/Security O Accessibility 4 Functional Characteristics O Strength O Aesthetic Properties O Durability O Acoustic Properties O Stain Resistance O Illumination O Transmission O Ventilation Characteristics O Waste Products & Discharge O Operational Characteristics O Measurable Characteristics O Material Properties 5 Practical Characteristics O Interface Characteristics (compatibility with other materials) O Service O Replaceability O Personnel Needs 6 Example of Compatibility Issues O Copper flashing used on structure containing aluminum windows O When condensation drips from the copper flashing it will cause the aluminum window frame to corrode (galvanic series) 7 System Compatibility Issues O A 5 foot light fixture has been selected to be used with a suspended ceiling system O The ceiling suspension system and acoustical panels selected must be compatible with the light fixture 8 Cost O Material cost O Installation cost O Initial cost – material & installation O Life-Cycle cost/ Value engineering 9 Legal Requirement O Case Studies O Other Legal Studies O Failures O Errors & Omissions O Problems O Legislation 10 Codes, Standards, and References O Codes & Regulations O Standards O Testing, Inspection O Indexes O Directories O Symposia, Technical Meetings O Research and Development 11 Checklist Approach O Often a “checklist” approach is used to determine product requirements O Example problem: You are to select a floor covering for an assembly room in an electronics manufacturing plant. What are some of your considerations in selecting the proper product? 12 Possible Considerations O Fire Safety- Class A material, flame-spread rating 0-25 O Accessibility- wheelchair accessible O Strength- subject to loads from 2-wheel dollies (hand O O O O O O trucks) Durability- no chemicals will be used in this room Stain resistance- high degree of sanitation required (washed often- considerable amount of foot traffic) Aesthetic properties- owners prefer light colors with low light-reflectivity Material properties- static resistance of 2.5KV Interface characteristics- compatibility of material to subsurface Service – 10 year life minimum 13 Products Which May Be Suitable O Resilient tile flooring O Resilient sheet flooring O Resinous flooring 14 Identifying Products O A generic product that meets project conditions and satisfies criteria is selected initially (e.g., “high-pressure plastic laminate” and not “Formica”) 15 Resources for Identifying Products O Manufacturer’s product data O Sweet’s Catalog O Manufacturer’s representatives O Professional and Trade associations O Technical manuals O Trade shows 16 Evaluating Products O Once a few possible products have been identified, the A/E should evaluate each and select the most appropriate for the given project O Selection Criteria: O The top priority is whether the product meets code requirements O Next is the visual acceptability (are designs & colors satisfactory) O Does manufacturer recommend this product for the intended use O Does the product have limitations/advantages O What is the product performance history 17 Installation Requirements O Considerations: O Do installation requirements address this projects O O O O site conditions (weather, if portion of the site is occupied) Is there any need for special skilled installers How will damaged goods (during shipping or construction) be replaced Will product fit through existing openings Does the product emit any fumes or odors during installation 18 Cost O Installed cost is a key concern; although a product may not be costly, sometimes installation is very costly O Life-cycle cost is sometimes a more appropriate measure of value 19 Maintenance Requirements O Maintenance can add a large amount of money to the product selected O Sometimes details are OVERLOOKED that cause problems later (motor placed out of reach for maintaining, filters needing replacing- no access to them planned, is a special mechanic required to service equipment- often costly and time sensitive to locate and bring to the project site) 20