1. Benefits of a Scissor Truss
The scissor truss is one of the most commonly recommended kinds of roof truss,
usually seen in residential spaces. Roof trusses are used to enhance the stability of
commercial and household roof structures. They're particularly useful if the roof is
constantly exposed to extreme weather variations or the house is located on an
unstable soil-bed. Some types of roof trusses can be modified for custom fitting
according to different style, size and design preferences. Installing and maintaining
a roof truss can be very tedious. Such issues arise if the truss is not compatible with
the roof type or has complex framing components. The contemporary roofing
solutions market offers many kinds of trusses. The commonly retailed choices
include stub, kingpost/queenpost, mono-pitch, studio and inverted trusses.
However, a scissor truss is the most sensible trussing choice for homeowners, as it
offers a number of benefits, such as:
Benefit 1: Scissor Truss Installation Is Cheaper
Some roof trusses need add-ons, like framing supports, to ensure that the truss is
able to align (bend) along demanding ceiling surfaces such as sloping or vaulted
ceilings. Many roofing contractors combine conventional trusses, such as a stub
truss, along with small sections of specialized trusses to provide better coverage of
the roof area. However, the presence of different trussing materials makes the entire
structure demanding in terms of installation costs. A scissor truss is easy to
maneuver, combining the stability of a conventional roof truss along with flexible
framing. Among other roof truss options, roofing fillers are often added to fill in
the gaps between the roof structure and the truss' frame. Such gaps are not found on
scissor trusses. This negates the need to use any form of supportive, trussing
components or specialized installation techniques. Lesser amount of framing
(usually steel or wood beams) and use of a single trussing material translate into
significant cost savings.
Benefit 2: Easier to Maintain or Repair
Moisture-induced deterioration is the biggest maintenance issue among roof
trusses. A typical scissor truss has a slightly-sloping structure which doesn't allow
the water to collect. The use of high-intensity hammer beams in scissor trusses
makes them less susceptible to structural damage issues, such as surface cracking.
Even if some repairs are needed, a scissor truss offers some remarkable advantages.
Repair techniques used to mend aged trusses depend upon whether the frame's
components are concealed or exposed. A scissor truss is undemanding in terms of
its overall configuration. Most scissor trusses tend to have a straightforward layout,
2. wherein joints along the high-stress areas are clearly marked. This makes it easier
to repair a moisture-damaged or leaking scissor truss. A scissor truss is easier to
handle in terms of periodic cleaning requirements, as less framing is used. Less
framing also makes the trussing beams and joints more accessible when
undertaking minor repairs. A typical wooden scissor truss can be easily repaired
with basic woodworking techniques and the use of simple household tools.
Benefit 3: Scissor Truss Offers Customization
A scissor truss can be designed and customized according to suit various roof
designs. Most truss or roof fabrication retailers offer choices like increasing or
decreasing the interior slope of a scissor truss. In fact, none of the other roof trusses
can be modified to create the cathedral-like ceiling that offers substantial, internally
roofed space. Such customization is possible only with a scissor truss.
While the basicadvantageshave beenmentionedabove,amore detailedlistof the advantagesof
roof trussesinbuildingahome include:
Professionaldesignandfabricationtechniques;inconventional roof building,the carpentersbuilda
roof frame,leavingmuchtochance and the builder’sopinionintermsof the roof’sstrength.By
comparison,atrussedroof systemisdesignedbyengineerstoaccommodate the specificroof design
and meetbuildingcodesandenablingamore uniformsize androof pitch.
Higherqualitymaterialsandstrength;roof trussesare fabricatedinside ashop,where the materials
are notexposedtoinclementweatheror moisture conditions.
Trussescan typicallybe installedinasingle day,speedingthe home constructionprocessandgetting
the structure closedupsooner,whichhelpspreventmoisture andotherweatherelementsfrom
Trussesare cheaperthanconventional roof framingdue tolaborsavingsandsince theyare built
fromshorterlengthsof 2×4 lumberratherthan the large size lumberrequiredinbuildingraftersand
Roof truss systemsallowforalmostanycustomroof designand shape imaginable,allowingfeatures
such as cross gablesandcathedral ceilingswithoutbeingprohibitivelyexpensive.
Roof trussescan span muchlongerdistanceswithoutthe needforloadbearinginteriorwalls
The design of the roof truss is very complex. The critical nature of the joints makes it difficult
to be assembled at the site. Rather, these joints are assembled at a manufacturing plant and
are trucked to the final destination. Despite the complex structure and the fact that these
structures appear very fragile, these structures are extraordinarily strong once they are
erected, mainly due to the amount of sophistication that is put into its engineering.