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Sprung Ridge
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| Straight sheets may be
sprung on site over a rounded structure with a minimum
radius of 36 metres. |
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Curved Sheeting
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| Curving of all B.M.S.
sheets except Lok-Tile, can be achieved by extending the
distance between the indentations across the sheet -
effectively increasing the radius. Brownbuilt and
Klip-Lok can be curved on site resulting in limitations
governed only by handling. Supa-Clad has to be
transported by road and is limited to a maximum cord
height of 2m and sheet length of 12m. The curving of
Custom Orb can also be achieved by passing sheets
through a set of three profiled steel rollers. Multiple
passes are used to progressively reduce the radius of
curvature (minimum 7m radius). |
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Sprung Curved Sheeting
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Convex:
The Brownbuilt profile, the Klip-Lok profiles and Custom
Orb can be sprung curved over and arched roof, provided
the radius of the arch is not less than the min listed
for each sheet profile in the following table. |
| Profile |
Min. Rad. |
Purlin Spacing |
| 0,6 & 0,8 CQ Brownbuilt |
36m |
1,800 |
| 0,5 & 0,6 ASTM 446 Grade E 3T Klip-Lok 406 |
36m |
1,800 |
| 0,5 & 0,6 ASTM 446 Grade E 3T Custom Orb |
12m |
1,000 |
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Concave:
Brownbuilt, Klip-lok and Custom Orb sheets can also be
sprung to a minimum radii shown in the following table
for concave roof applications. |
| Profile |
Min. Rad. |
Purlin Spacing |
| 0,6 & 0,8 CQ Brownbuilt |
36m |
1,500 |
| 0,5 & 0,6 ASTM 446 Grade E 3T Klip-Lok 406 |
36m |
1,800 |
| 0,5 & 0,6 ASTM 446 Grade E 3T Custom Orb |
12m |
1,000 |
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Note: Whenever sheets are sprung slight crease marks may
appear in the pans. Increased radii reduces this effect
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Bullnosing and Cranking
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| Eaves Bullnose |
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| Apex Bullnose |
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| Curved |
| Available in:
Brownbuilt, Klip-Lok, Supa-Clad, Custom Orb |
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Curving and Springing
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| Klip-Lok can be curved to
any radius over 800mm by increasing the distance between
the 'cranking' indentations across the sheet. Klip-Lok
can be sprung to a min. radius of 36m (convex or
concave) [see table]. |
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Rib cap detail
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| Available with:
Brownbuilt, Klip-Lok |
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