5. Mats & Finishes Flashcards
Stair ID Signs
IBC 1023 9.1:
- 18” x 12” min
- 1 1/2” min text size identifying the exit
- Other letters are a minimum of 1”
- Floor level is centered on the sign & 5” min
- Non glare finish & high contrast
Martindale Abrasion
Figure-8 Cycles
Private Use: 10,000 - 15, 000
Office Use: 25,000 - 35,000
Commercial Use: 30,000 - 40,000
Wyzenbeck Abraision
Oscillatory Cylinder, Double rubs
Contract upholstery: 15,000
Heavy-duty: 15,000 - 30,000
Extra heavy-duty: 30,000+
Critical Radiant Flux Test
ASTM E648/NFPA 253
Measures the flame spread of flooring systems, like carpet, in corridors and exits.
Methenamine Pill Test
ASTM D2859
Used to measure general flame resistance of carpet/floor coverings.
Vinyl Wall Covering Grades
Type 1 - Residential & Commercial, light traffic
Type 2 - Residential & Commercial, medium traffic
Type 3 - Commercial, heavy abuse
Determinants of Upholstery Flammability
Cushioning & Surface Fabric
Cushion & fabric attachment methods
Tufting, Buttoning, Channeling
Velvet Weaving
Thee least complex weaving method. It is used primarily to produce solid color carpets, but variations in color and pattern are possible.
Axminster Weaving
Patterns and colors are virtually limitless, because the colored yarns are inserted individually as they are required by the design, emulating the handweaving process. The distinguishing characteristics of this weave type are intricate,
multicolored patterns and a backing so heavily ribbed that the carpet can be rolled only lengthwise.
Wilton Weaving
A Wilton carpet is thick and heavy because yarn of every color used is carried beneath the pile surface. This unusual
construction makes it the most heavy, durable carpet type, making it a popular choice for heavy-traffic areas.
Allows a complex, custom-patterned carpet with
varying pile heights.
Carpet Pitch
Pitch is the number of ends of surface yarn in a 27 in width. To convert this measurement to gauge (the spacing between stitches) divide the pitch by 27.
