20 foot ( 6.09 Meter ) wide

 GCS/Omni Series FS commercial

 

Reinforced (Roof Joints ) Arches and Arch Uprights

Reinforced Arches and Arch uprights are spaced at 6 feet ( 1.838 meter ) on centers along the length of the structure are comprised of 1 1/2" (38 mm) round, 16 gauge (0.065"/0.1651 mm wall thickness) galvalum (galvanized), top and bottom cord which are trussed into place with welded 5/16" ( 7.9 mm) galvanized welded diagonal webbing. The average spacing between the top and bottom cords is about 8 inches ( 200 mm ). When assembled, the arch set provides a very stiff wind resistant and very strong assembly ( for snow and overhead loads ). A complete arch set is comprised of 2 reinforced arch uprights, 2 arch halves and 2 ridge brackets. The arch profile is gothic. The standard height of the reinforced upright is 5 feet ( 1.5 meters ) nominal. Optional 7 foot ( 2.1 meters ) and 10 foot ( 3.0 meters ) high side walls are available. All arch and arch upright connections are simple slip fit design. This allows ease and rapid assembly times. A lot of our clients associate our arch and upright design as a curved metal floor joist. They are that strong.


Foundation Ground Sleeves

Foundation ground sleeves are provided with each structure. Two sleeves per arch set are provided. The sleeves are 1 1/2" ( 38 mm round ), 16 gauge X 34" ( 813 mm long ). Optional lengths are available on request. These are spaced at 6 feet ( 1.838 meter ) on center along the length of the building. They can be simply pounded into grade ( depending on soil conditions - consult local authorities ) or more if a secure method is desired , cast into concrete piles. For those wishing to install the structure on a concrete pony wall, floating concrete floor slab or wooden timber foundation optional flat bottom mounting plates are available.


Side wall purlin steel.

On houses with single or double poly cladding (Model DP) we provide four rows total, two on each side of the peak. The side wall purlins tie all the arches together which provides stiffness to the structure and to increase the overall strength of the structure. ( This is important to note because most causes of failure is from free floating arch failure ). Our side wall purlin packages alleviate this condition. The purlin steel is 1" ( 25 mm ) round, 16 gauge, galvalum. They are shipped cut to length with the ends flattened and prepunched for you. The mounting locations correspond to the prepunched holes in the bottom cord of the arch. It is important to note, with our arch depth, the location of the side wall purlin is held away from the poly. This ends the condensate drip problem. The side wall purlins are connected to the arch with a bolted connection. The fasteners used are 1/4" (6 mm) X 2 1/2" ( 64 mm) carriage bolts and nuts. The purlins are connected to the bottom cord. This may not seem like much .... but the real beauty is .....this keeps the purlins away from the poly face. ....So what you ask ? ..... Well ..... this reduces condensate drip. ...So what you ask ?... Well ... if you are concerned about the health of your crop .... less drip means less disease. ( We all know that allowing cool water sitting on plant material from condensation drips provides a prefect ecosystem for any virus or pathogen to take hold. ..... don't we !!!!!)

On houses that are provided with a hard cladding system (Model HC) such as 8 mm twin wall polycarbonate or single wall corrugated polycarbonate, 14 rows of 1 1/2" ( 38 mm ) sq., 16 gauge, galvalum purlins are provided. These are spaced evenly on the arches ( about 3 feet on center ) and are used to secure the cladding system to the roof and side walls. The purlins are secured to the arches with band clamps and screws provided with the package. On the hard clad house a galvanized steel roof flashing is provided at the peak for an effective long term weather seal.


End wall Framing Steel

End wall framing steel is 1 1/2" ( 38 mm) sq., 16 gauge galvalum material. See detail elevations of verticals and horizontals provided. Gable end framing steel packages are also provided with diagonal windbraces 1 1/2" ( 38 mm) round, 16 gauge galvalum which ransfer gable end wind loads effectviely back into the structure.


Wind Bracing

Each corner of each structure is provided with 4 - 1" ( 25 mm) round X 8 feet (2.4 meter ) long, 16 gauge galvalum diagonal wind braces. These braces are attached to arch with clamps and fasteners provided.

If gable end framing packages are provided each end is supplied with a 1 1/2" ( 38 mm) round X 15 ft ( 4.5 meter ) long, 16 guage galvalum gable end wind brace with distributes gable end wind loads back into the structure.


Gable End Arches

Our gable end arches come in a range of factory finishes for you.

If you order a single or double poly house ( roof and gable ends ) we supply the end arches with factory installed wire lock and stainless steel insert wire.

If you order a single or double polyhouse ( roof only ) and hard clad gable ends we prefer to supply our end arch sets with factory installed wire lock and EDPM rubber flashing strip. ( For those that have gone through the hassel of flashing gable ends yourself ----- you will truly value this feature ). Simply cut your end panels to length and slip under the rubber flashing with built in channel grips. Simply .... easy ... effective and it won't tear the poly when pulling the poly ).

If you order a hard clad structure we prefinish the end gable arches with an alumimum h channel ( which supports the roof polycarbonate edge along the length of the arch ) and our EDPM rubber flashing for the gable end cladding.

Our EDPM rubber flashing works well on applications where v-rib metal siding is used on the gable ends and corugated single wall polycarbonate products.

Galvalum Material Strength

Galvalum material carries a rating of 50,000 PSI yield strength and 55,000 PSI tensile strength. When compared to aluminum, galvalum exhibits and average 60% greater load carrying capacity in tension.