Profile roofing and cladding specialists. Colorpro – we’ve got it all covered
Fixing recommendations
The following fixing specification is the result of calculations taken from ‘drop bag’ testing to achieve non fragile classification in accordance with the HSE document - ACR(M)001: 2000.
Testing took place at Hambleside Danelaw Ltd in March 2004.
Purlins were set at 1800mm centres and Ashgrid Brackets were set at 1000mm spacings.
Roof (Minimum 4º Actual pitch)
Liner panel
(It is not advisable to ‘line out’ the roof completely before fixing outer sheet)
Fixing Frequency |
- |
every trough at ends and laps of panel. |
|
- |
every other trough at mid span support. |
|
- |
minimum edge distance for fixing is 30mm. |
Washer size |
- |
minimum 16mm. |
End laps |
- |
minimum 100mm. |
Sealant |
- |
side laps to be sealed using 50mm x 1mm ‘Polyband’, or similar (end laps should also be sealed to provide a vapour check). |
Outer sheet
Fixing Frequency |
- |
every trough at ends and laps of sheet. |
|
- |
every other trough at mid span support. |
|
- |
side stitch at maximum 450mm centres. |
Washer size |
- |
minimum 16mm. |
End laps |
- |
minimum 150mm. |
Sealant |
- |
minimum 6mm x 5mm mastic (or 6mm dia bead) at side laps. |
|
- |
Two rows minimum 6mm x 5mm mastic (or 6mm dia bead), at end laps (i.e. one row either side of fixing position). |
Walls
Liner Panels |
- |
as above. |
Outer Sheet |
- |
as above but sealant and side stitching frequency is at the discretion of the Cladding contractor. |
COLORPRO
Tel: +44 (0) 1633 223 854 Fax: +44 (0) 1633 220 175
e-mail: info@colorpro.co.uk
COLORPRO is part of the COLORGROUP of companies
