Table 8 Calculation results of screw-back bolts at the wall surface.

From: Restoration of authenticity in building insulation-and-decoration integrated board in cold regions

Height above ground (M)

Standard value of negative wind pressure load (KN/m2)

Safety factor

Requirements for anchorage strength

The number of screw-back bolts

5

0.88

2

1.76

2.93

10

0.88

2

1.76

2.93

15

0.88

2

1.76

2.93

20

0.97

2

1.94

3.24

30

1.10

2

2.21

3.68

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