A quick guide to fixing and fixing distances

A quick guide to fixing and fixing distances

Fixing a ROCKPANEL board couldn’t be easier, but there are a few guidelines to follow

When ROCKPANEL boards are fixed mechanically,

  • use ROCKPANEL fixings on an aluminium or timber sub-frame
  • ensure the fixings are free of tension

When determining the fixing distances keep in mind the following:

  • wind loading
    - Determine the fundamental local basic wind velocity
    - Determine the maximum height of the building
    - Determine the site altitude
    - Determine the distance from the coast
    - Determine the distance to the edge of the city
  • the building area (see image below)
  • type of ROCKPANEL board, thickness and fastening system
  • the required ventilation provisions
  • static load absorption, for example 1-field- or 2-field span
  • legal local requirements
Indication for the fundamental basic wind velocity according to EN 1991 1-4 Indication for the fundamental basic wind velocity according to EN 1991 1-4


Building area:
A = Corner area / B = Area between the corners / h = Total building height

The calculated maximum fixing distances for the ROCKPANEL exterior cladding boards and maximum building heights for ROCKPANEL Lines² are based on the following characteristics:

• ROCKPANEL boards in Durable grade
• Location in country
• Distance from the coast > 10 km
• Site altitude ≤ 50 m
• Building height ≤ 10 m (only applicable for ROCKPANEL Boards)
• Strength class timber: c24 according EN338
• Aluminium according ETA

Fixing of ROCKPANEL boards

Fixing distances with ROCKPANEL screws on a timber sub-frame

2 field span & 3 fixings - 8 mm Durable boards

Fixing distance (except ROCKPANEL Natural / ROCKPANEL Ply)

  Wind speed
  22 m/s 23 m/s 24 m/s 25 m/s 26 m/s
b am/ar am/ar am/ar am/ar am/ar
600 330/500 - - - -
500 400/600 365/550 335/505 310/465 285/430
400 500/600 455/580 420/565 385/550 355/535

ar1 ≥ 15 mm / ar2 ≥ 50 mm

2 field span & 3 fixings - 8 mm Durable boards
2 field span & 2 fixings - 8 mm Durable boards

Fixing distance (except ROCKPANEL Natural / ROCKPANEL Ply)

  Wind speed
  22 m/s 23 m/s 24 m/s 25 m/s 26 m/s
b a a a a a
600 275 - - - -
500 350 310 280 250 220
400 440 415 375 335 305

ar1 ≥ 15 mm / ar2 ≥ 50 mm

2 field span & 2 fixings - 8 mm Durable boards
1 field span & 3 fixings - 8 mm Durable boards

Fixing distance (except ROCKPANEL Natural / ROCKPANEL Ply)

  Wind speed
  22 m/s 23 m/s 24 m/s 25 m/s 26 m/s
b a
a
a
a
a
600 - - - - -
500 - - - - -
400 565 515 475 435 -

ar1 ≥ 15 mm / ar2 ≥ 50 mm

1 field span & 3 fixings - 8 mm Durable boards
1 field span & 2 fixings - 8 mm Durable boards

Fixing distance (except ROCKPANEL Natural / ROCKPANEL Ply)

  Wind speed
  22 m/s 23 m/s 24 m/s 25 m/s 26 m/s
b a
a
a
a
a
600 - - - - -
500 - - - - -
400 440 425 415 400 -

ar1 ≥ 15 mm / ar2 ≥ 50 mm

1 field span & 2 fixings - 8 mm Durable boards
2 field span & 3 fixings - 6 mm Durable boards

Fixing distance (except ROCKPANEL Natural / ROCKPANEL Ply)

  Wind speed
  22 m/s 23 m/s 24 m/s 25 m/s 26 m/s
b am/ar am/ar am/ar am/ar am/ar
400 300/300 285/300 260/300 240/300 225/300
300 300/300 300/300 300/300 300/300 300/300

ar1 ≥ 15 mm / ar2 ≥ 50 mm

2 field span & 3 fixings - 6 mm Durable boards
2 field span & 2 fixings - 6 mm Durable boards

Fixing distance (except ROCKPANEL Natural / ROCKPANEL Ply)

    Wind speed
  22 m/s 23 m/s 24 m/s 25 m/s 26 m/s
b am
am
am
am
am
400 300 285 255 230 205
300 300 300 300 300 290

ar1 ≥ 15 mm / ar2 ≥ 50 mm

2 field span & 2 fixings - 6 mm Durable boards
1 field span & 3 fixings - 6 mm Durable boards

Fixing distance (except ROCKPANEL Natural / ROCKPANEL Ply)

  Wind speed
  22 m/s 23 m/s 24 m/s 25 m/s 26 m/s
b a
a
a
a
a
400 - - - - -
300 300 300 300 300 -

ar1 ≥ 15 mm / ar2 ≥ 50 mm

1 field span & 3 fixings - 6 mm Durable boards
1 field span & 2 fixings - 6 mm Durable boards

Fixing distance (except ROCKPANEL Natural / ROCKPANEL Ply)

  Wind speed
  22 m/s 23 m/s 24 m/s 25 m/s 26 m/s
b a
a
a
a
a
400 - - - - -
300 300 300 300 300 -

ar1 ≥ 15 mm / ar2 ≥ 50 mm

1 field span & 2 fixings - 6 mm Durable boards

Fixing distances with rivets on an aluminium sub-frame

2 field span & 3 fixings - 8 mm Durable boards

Fixing distance (except ROCKPANEL Natural / ROCKPANEL Ply)

    Wind speed
  22 m/s 23 m/s 24 m/s 25 m/s 26 m/s
b am/ar am/ar am/ar am/ar am/ar
600 405/600 - - - -
500 490/600 445/580 410/565 380/550 350/535
400 600/600 560/580 515/565 475/550 435/535

ar1 ≥ 15 mm / ar2 ≥ 50 mm

2 field span & 3 fixings - 8 mm Durable boards
2 field span & 2 fixings - 8 mm Durable boards

Fixing distance (except ROCKPANEL Natural / ROCKPANEL Ply)

    Wind speed
  22 m/s 23 m/s 24 m/s 25 m/s 26 m/s
b a a a a a
600 380 - - - -
500 440 425 385 345 315
400 440 425 415 400 385

ar1 ≥ 15 mm / ar2 ≥ 50 mm

2 field span & 2 fixings - 8 mm Durable boards
1 field span & 3 fixings - 8 mm Durable boards

Fixing distance (except ROCKPANEL Natural / ROCKPANEL Ply)

  Wind speed
  22 m/s 23 m/s 24 m/s 25 m/s 26 m/s
b a
a
a
a
a
600 - - - - -
500 - - - - -
400 600 580 565 550 -

ar1 ≥ 15 mm / ar2 ≥ 50 mm

1 field span & 3 fixings - 8 mm Durable boards
1 field span & 2 fixings - 8 mm Durable boards

Fixing distance (except ROCKPANEL Natural / ROCKPANEL Ply)

  Wind speed
  22 m/s 23 m/s 24 m/s 25 m/s 26 m/s
b a
a
a
a
a
600 - - - - -
500 - - - - -
400 440 425 415 400 -

ar1 ≥ 15 mm / ar2 ≥ 50 mm

1 field span & 2 fixings - 8 mm Durable boards

Fixing of ROCKPANEL Lines²

Fixing Distances on a timber sub-frame

ROCKPANEL Lines² 10 - single ring shank nail
    Lines² 10 XL Lines² 10 S
Wind speed Span c.t.c. Zone B Zone A Zone B Zone A
22 m/s 600 mm - - 30 m 10 m
500 mm 5 m - 30 m* 20 m
23 m/s 600 mm - - 20 m 7 m
500 mm - - 30 m* 15 m
24 m/s 600 mm - - 15 m 5 m
500 mm - - 30 m 10 m
25 m/s 600 mm - - 10 m -
500 mm - - 20 m 7 m
26 m/s 600 mm - - 7 m -
500 mm - - 15 m 5 m

* Higher buildings not calculated, contact us for more info.

ar1 ≥ 15 mm / ar2 ≥ 50 mm

ROCKPANEL Lines² 10 - single ring shank nail
ROCKPANEL Lines² 10 - double ring shank nail
    Lines² 10 XL Lines² 10 S
Wind speed Span c.t.c. Zone B Zone A Zone B Zone A
22 m/s 600 mm 30 m 10 m 30 m* 30 m*
500 mm 30 m* 20 m 30 m* 30 m*
23 m/s 600 mm 20 m 7 m 30 m* 30 m
500 mm 30 m* 15 m 30 m* 30 m*
24 m/s 600 mm 15 m 7 m 30 m* 20 m
500 mm 30 m 15 m 30 m* 30 m*
25 m/s 600 mm 10 m 5 m 30 m* 15 m
500 mm 20 m 10 m 30 m* 30 m*
26 m/s 600 mm 7 m - 30 m 10 m
500 mm 15 m 7 m 30 m* 30 m*

* Higher buildings not calculated, contact us for more info.

ar1 ≥ 15 mm / ar2 ≥ 50 mm / ar3 ≥ 20 mm

ROCKPANEL Lines² 10 - double ring shank nail
ROCKPANEL Lines² 8 - single ROCKPANEL clip
    Lines² 8 XL Lines² 8 S
Wind speed Span c.t.c. Zone B Zone A Zone B Zone A
22 m/s 500 mm 30 m* - 30 m* 30 m*
400 mm 30 m* 7 m 30 m* 30 m*
23 m/s 500 mm 20 m* - 30 m* 20 m
400 mm 30 m* 5 m 30 m* 30 m*
24 m/s 500 mm 15 m - 30 m* 20 m
400 mm 30 m* - 30 m* 30 m*
25 m/s 500 mm 15 m - 30 m* 15 m
400 mm 30 m - 30 m* 30 m
26 m/s 500 mm 10 m - 30 m 10 m
400 mm 20 m - 30 m* 20 m

* Higher buildings not calculated, contact us for more info.

ar1 ≥ 15 mm / ar2 ≥ 50 mm

ROCKPANEL Lines² 8 - single ROCKPANEL clip
ROCKPANEL Lines² 8 - double ROCKPANEL clip

<td">30 m*

    Lines² 8 XL Lines² 8 S
Wind speed Span c.t.c. Zone B Zone A Zone B Zone A
22 m/s 500 mm 30 m* 20 m 30 m* 30 m*
400 mm 30 m* 30 m* 30 m* 30 m*
23 m/s 500 mm 30 m* 15 m 30 m* 30 m*
400 mm 30 m* 30 m 30 m* 30 m*
24 m/s 500 mm 30 m* 10 m 30 m* 30 m*
400 mm 30 m* 20 m 30 m* 30 m*
25 m/s 500 mm 30 m* 7 m 30 m* 30 m*
400 mm 30 m* 15 m 30 m*
26 m/s 500 mm 30 m 5 m 30 m 30 m
400 mm 30 m* 10 m 30 m* 30 m*

* Higher buildings not calculated, contact us for more info.

ar1 ≥ 15 mm / ar2 ≥ 50 mm / ar3 ≥ 20 mm

ROCKPANEL Lines² 8 - double ROCKPANEL clip
Technical Support
Technical Support

Technical Support

If your specific distances aren't mentioned in the tables above or the building has a specific shape/height or is located in a specific area, please contact your ROCKPANEL expert - we are always happy to offer assistance.
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