Custom Search
|
|
|
||
 maintenance of historic materials difficult. It is made
to represent stone, wood, metal, and terra cotta in ornate
or carved building elements (column capitals, bases,
spandrel panels, beltcourses, balustrades, window hoods,
or parapets) .
o Advantages.
Lightweight
Long spans available with separate structural frame;
High ratio of strength to weight;
Good molding ability;
Integral color with exposed high quality pigmented
gel-coat, or takes paint well;
Easily installed;
Can be cut, patched, sanded; Non-corrosive and rot
resistant.
o
Disadvantages.
Requires separate anchorage system;
Combustible;
Fragile to impact;
High coefficient of expansion and contraction requires
frequently placed expansion joints:
Ultra-violet sensitive unless surface is coated or
pigments are in gel-coat;
Vapor impermeability may require ventilation detail.
Checklist.
o
Can original materials be saved/used?
Have expansion joints been designed to avoid unsightly
appearance?
Are there standards for color
stability/durability?
Have shop drawings been made for each piece?
Have samples been matched for color and texture?
Are fabricators/installers experienced?
4-63
|
 
|
|
|
||
