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Roof

Fortress Metal Buildings

Forstress’s steel building roof’s is made of Galvalume which is AZ55 – 55% of the coating on the roof is made of aluminum, 44% zinc and 1% silicon. The more aluminum in the coating, the more resistance to rusting.

With AZ55, we give you a 35-year warranty rust-through perforation warranty on 26 gauge AZ55 Galvalume roof panels. Should a hole go through the panel, the steel mill will replace the panel.

With a Galvalume roof you have no maintenance.

Galvalume will not turn gray, but retains the same luster as when it was originally installed, so you will never have to paint or maintain your roof. The cost of AZ55 over AZ50 is well worth it for this exceptional material.

Pole Barns

Pole Barnd

Fortress’s competitors offer only a 15 year guarantee on the roof, and use, in some cases, only a zinc coating which will oxidize, turn dark gray, and rust. Some of Fortress’s competitors use only AZ50, providing only a 20 year warranty on the roof.

Fasteners

Fortress Metal Buildings

Forstress’s steel building roof’s is made of Galvalume which is AZ55 – 55% of the coating on the roof is made of aluminum, 44% zinc and 1% silicon. The more aluminum in the coating, the more resistance to rusting.

With AZ55, we give you a 35-year warranty rust-through perforation warranty on 26 gauge AZ55 Galvalume roof panels. Should a hole go through the panel, the steel mill will replace the panel.

With a Galvalume roof you have no maintenance.

Galvalume will not turn gray, but retains the same luster as when it was originally installed, so you will never have to paint or maintain your roof. The cost of AZ55 over AZ50 is well worth it for this exceptional material.

Pole Barns

Pole Barnd

Fortress’s competitors offer only a 15 year guarantee on the roof, and use, in some cases, only a zinc coating which will oxidize, turn dark gray, and rust. Some of Fortress’s competitors use only AZ50, providing only a 20 year warranty on the roof.

Roof Panels

Fortress Metal Buildings

Fortress Buildings’ roof panels are made of 26 gauge AZ55 Galvalume, 80 yield, which makes the steel durable, and hard, so you can actually run up and down the roof.

Fortress Buildings have a 1¼” depth in our corrugation in the sheeting on the roof. Fortress’s depth of corrugation adds tremendous strength to the roof.

The sheets on the roof overlap at each bay If your building is 60’ long, you will have 3 bays, as every 20’ is a frame.

When the sheeting overlaps at each bay, the Fortress Building panel overlap goes all the way to the bottom of the corrugation and along the bottom like a reversed “L”. This prevents water from backing up through the overlap into the building, thus preventing leaks and giving you a dry building.

The design of this overlap, which goes over the top of the corrugation, and to the bottom of the corrugation, and along the bottom like a reverse “L” looks like the letter “Z” resembling the purlins on the roof which join the rafters together.

This purlin braced roof provides tremendous strength and prevents the roof sheeting from bending or cracking.

Pole Barns

Pole Barnd

Other companies use only 29 gauge steel on the roof, which is 35% lighter than 26 gauge so you cannot have the same strength or durability.

Other companies use only a 5/8” depth of corrugation, which is a full 50% less depth than the 1 ¼” corrugation and do not provide the strength.

Some companies use an R panel roof, which means that the sheeting overlap goes only 1/3 of the way into the corrugation and not to the bottom and along the bottom like a reverse “L”.

This means you will develop leaks, as the water will back up into the building.

This short overlap also does not provide the strength that is required for the roof.

Paint

Fortress Metal Buildings

The polyester baked-on paint Fortress Metal Buildings uses on the sides and ends of the building has a 40 year warranty against chipping, cracking, peeling and blistering. So your building maintains its beauty year after year.

Pole Barns

Pole Barnd

Our competitors only warranty the roof for:

  • 10 years
  • 15 years
  • 20 years
  • 40 years – Only Fortress Buildings

Grits and Purlins

Fortress Metal Buildings

To protect against rusting, the purlins – the 8” Zees, 16 gauge beams, which join the rafters together, and the girts – the 16 gauge 8” beams joining the columns together at the side of the building, have a zinc-galvanized coating applied at the mill This is not a primer, which is only an oxide, but a zinc-galvanized coating applied at the mill.

15-20 years from now the purlins and girts will not corrode and leave unsightly rust leaking from the roof and sides of the building.

Pole Barns

Pole Barnd

Our competitors use wooden girts and purlins, which will bow or bend causing screws to loosen, sheets to flap, and causing leaks.

Grits and Purlins

Fortress Metal Buildings

To protect against rusting, the purlins – the 8” Zees, 16 gauge beams, which join the rafters together, and the girts – the 16 gauge 8” beams joining the columns together at the side of the building, have a zinc-galvanized coating applied at the mill This is not a primer, which is only an oxide, but a zinc-galvanized coating applied at the mill.

15-20 years from now the purlins and girts will not corrode and leave unsightly rust leaking from the roof and sides of the building.

Pole Barns

Pole Barnd

Our competitors use wooden girts and purlins, which will bow or bend causing screws to loosen, sheets to flap, and causing leaks.


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