List five factors that affect the size of ceiling joists
load to be supported, span, wood species, spacing, and grade of lumber.
Name the five standard parts of a frame wall.
sole plates, studs, double top plates, bracing, and headers over wall openings.
Which properties must lumber used for wood framing have?
good stiffness and nail-holding properties, be free from warp, and easy to work.
Name three softwoods commonly used as framing lumber.
southern yellow pine, spruce and douglas fir.
The acceptable range of moisture content for framing lumber is
15-19
Finished wall height in most residential structures is
8'-0".
The framing member used to span the distance over an opening in the wall, such as a door or window, is called a-----0r------
header or truss header.
Identify an advantage of using a large solid header instead of a smaller header with cripples.
method reduces construction time.
Studs that are not full length and used above or below openings in a wall are
cripples
The rough opening height for most doors is
6-10
If a window has a rough opening width of 5'-2", the chart in Figure 14-7 indicates that the header size should be
2x8
Name three areas of the house that require special framing consideration.
openings for heating ducts, wall backing for fixtures, and extra support for the bathtub.
The purpose of a header course of brick in a masonry wall is to
bond masonry with more than one thickness.
The spacing of metal wall ties should be no farther apart than ---- vertically and ----horizontally.
16" 32
Solid masonry walls for residential construction are usually---thick
8
Concrete block walls are sometimes called
cavity wall
The angle cut on the end of floor joists to be used with a solid masonry wall is called a
firecut
The two types of stonework are
ashlar and rubble.
In a masonry veneer wall, the air space between the veneer and stud wall is usually about
1" wide
The top plate is secured to a solid masonry wall by the use of
anchor bolts
Brick is made primarily of
fired clay
There are basically two types of bricks. These are
face brick common brick
The most popular brick bond for solid masonry walls is the
running bond
Name four factors that seem to be driving the move foreword toward accepting steel framing in residential construction.
wood is becoming more scarce and expensive, the quality of new growth lumber is not as good, steel framing has a proven record in commercial construction, and steel is made from a recyclable material.
How does the use of steel framing provide an environmental benefit?
all steel products are recyclable, and can be recycled repeatedly. It can also be removed from the solid waste system very easily, and there is a small amount of energy required to produce steel.
How are "drywall studs" used in steel frame structures?
nonbearing interior partitions.
What is stucco?
Stucco is a coating applied to the outside of a structure.
The expected life of properly-installed three-coat stucco can exceed
100 years
Stucco can be applied to most any surface so long as the structure is
rigid
For stucco, ---- is used to repair pinholes, tears in paper, and to seal flashing at penetrations and openings.?
caulk
10 roof types
1- a-frame
2- butterfly
3- dutch hip
4- folded plate
5- flat
6- gambrel
7- gable
8- hip
9- mansard
10- shed
purpose of roof framing
to support the roof covering materials
roof framing member that extends from the ridge to the top plate or beyond
Rafter
Roof has a pitch of 3:12, rise 6, span is
24'
roof span measured from :
inside of 1 exterior stud wall to the inside of the other exterior stud wall
the ____ of the roof is 1/2 the span
Run
Formula for calculating pitch:
rise / span
pitch of a roof w/ a 45 degree slope:
1/2
determine rafter size:
1- distance to be spanned
2- spacing of the rafters
3- weight to be supported
the ____ is the overhang of the roof at the eaves line that forms
Cornice
3 types cornice used in residential homes
1- open cornice
2- box cornice
3- closed cornice
reasons to ventilate attic
-moisture will form on underside of roof sheathing
- help to cool the interior of a house in summer
total area of ventilator openings should e a min. of ____ of ceiling area
1/300th
materials common for roof flashing:
- aluminum
- copper
Roof sheathing on most homes is ___ " thick plywood
3/4
roofing materials residential (5)
1- asphalt shingles
2- wood shingles
3- tile
4- slate
5- roll roofing
minimum weight of asphalt shingles: ____ lb/sq ft
235
2 benefits of roof truss > conventional framing techniques
1- less expensive
2- additional space for ceiling insulation
3 types of trusses in residential construction
1- w-type
2- k-post
3- scissor
info required to purchase roof trusses for a home
span, roof pitch, spacing of trusses, anticipated roof load
used to fasten together members of a wood truss
gusset
2 new roofing material that have greater wind resistance than asphalt
- metal roofing
- asphalt laminate shingles