|
X-bracing
|
Cross
bracing |
| Xestobium
rufovillosum |
The
death-watch beetle |
| X-ray
plaster |
Barium
Plaster |
| Xylol |
A
solvent for synthetic resins and gums, distilled from coal tar. |
| Yacht
Varnish |
Phenolic
Varnish |
| Yankee
gutter |
A
roof gutter made of supported sheet metal roofing built directly on the
boarding of a pitched roof near the eaves. The sheet metal is held in place
by an upright board near the edge of the roof. |
| Yankee
screwdriver |
A
quick-action screwdriver worked by hand. It has an inner shaft with a steep
thread, turned by pushing or pulling the handle. It works better screwing
in than out and demands skill. |
| Yard |
An
English measure of distance, of 3 feet or 36 inches |
| Yard
Lumber |
Timber
graded according to its size, length and intended use, stocked in a lumberyard. |
| Y-bend |
Y-fitting |
| Year
ring |
An
annual ring |
| Yellow
pine |
Pitch
pine, a European whitewood. |
| Yelm,
Yelven |
A
double handful of reeds or straw, laid on a roof as a thatch. |
| Yield
|
Plastic
deformation of a material. |
| Yorky |
A
slate with curved cleavage. |
| Zalutite
|
Aluminium-zinc
coated steel sheet. |
| Zax,slater's
axe |
A
tool with a straight flat blade like a butcher's chopper, with a point projecting
from the back. It is used to cut slates or punch nail holes. |
| Z-bar,
Zee-Bar (USA)
|
A
Z- purlin |
| Zeolite |
Minerals
used in water softeners that function by base Exchange. |
| Zinc
Chromate Primer |
A
deep red metal primer for steel, usually a two-part product, containing
phosphoric acid to etch the surface and react with resins in the medium. |
| Zinc
Oxide |
A
white pigment which can block ultraviolet and prevent chalking in paints. |
| Zinc
Phosphate Primer |
A
general metal primer for steel that protects against water and oxygen by
the barrier effect. The zinc phosphate is not an inhibiting pigment; so
all rust must be removed before painting. |
| Zinc
Rich Paint, cold galvanizing |
A
paint that is almost entirely zinc metal, in the form of very fine dust,
with only a small proportion of liquid synthetic resin to act as a binder.
It is not as hard or firmly attached as galvanizing, but is easy to put
on by brush or spray. It is used as a complete protective coating on steel,
for touching up damage to galvanizing, or as metal primer |
| Zinc
Roofing |
Supported
sheet metal roofing of solid, plain zinc sheet that was popular in France
and Europe until recently. Atmospheric pollution, against which efforts
are being made, shortens its life in cities. In the country it may last
fifty years or more. |
|
Zinc Silicate Primer |
A
high performance metal primer used on bare steel after wet blast cleaning. |
| Zipper |
A
stiff rubber strip pushed into a groove in the face of a gasket glazing
so as to tighten its hold on the glass and make an airtight seal. |
| Z-
purlin |
A
steel purlin shaped like the letter Z, formed by folding galvanized sheet.
It is used in factory and warehouse roofs. |