TR 45

A strong roof profile allowing wide distances between purlins. Borga TR 45 is commonly used for roofing industrial and commercial steel halls, combining good covering width with a very high bearing capacity. The profile’s height makes it especially suited for snowy locations or where high rainwater run-off capacity is required. This profile can also be used externally on the walls of larger industrial buildings. The profile has a special water groove preventing rainwater from coming in through the overlap.

To prevent condensation drops from forming on the ceiling of uninsulated buildings, it is recommended to apply Borga DropStop to the undersurface of the roof profiles.

The steel core is passivated and painted with a primer and a top layer in polyester P30, P50 or MAT.

Available thicknesses: 0.5 mm / 0.6 mm / 0.7 mm



Nominal thickness tnom mm 0,5 0,6
Thickness for calculation tber mm 0.441 0.538
Mass m kg/m2 4.9 5.8
Yield strength fty N/mm2 250 250
Hight mm 43 43
Cover width mm 950 950
Min. length mm 500 500
Max. length mm 12000 12000
Support reaction, end support Rd kN/m 2.48 3.63
Support reaction, 50 mm support width Rd kN/m 8.47 12.20
Support reaction,100 mm support width Rd kN/m 11.11 15.89
Shear buckling capacity, flange Vf kN/m 15 27.2
Shear buckling capacity, rib Vw kN/m 32.9 59.8
Shear buckling capacity, global L2Vgd kN/m 63.7 77.7
Torque, positive pressure effect Md kNm/m 1.130 1.592
Moment of inertia, positive pressure effect Idef mm4/mm 126.7 169.8
Moment, negative pressure effect Md kNm/m 1.043 1.442
Moment of inertia negative pressure effect Idef mm4/mm 101.1 133.1
Walkability (c:c) calculated at a person weight of 100 kg, 2-bay, roof slope<14°, fastened m 1.18 1.61
Walkability (c:c) calculated at a person weight of 100 kg, >2-fack, roof slope <14°, fastened m 1.40 1.91
Walkability (c:c) calculated at a person weight of 100 kg, 2-fack, roof slope <14°, not fastened m 0.96 1.31

Profile data is calculated according to the Eurocode.


Color variation
Standard Colors

White 9106

Light Grey 7035

Silver 9006

Graphite 0087

Black 9005

Beige 1015

Yellow 0453

Reseda Green 6011

Green 0510

Sky Blue 5015

Glowing Blue 5010

Brick Red 8004

Cherry Red 3009

Red 0302

Brown 8017


Borga Color map Standard
  • Color Map Standard
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