PRODUCT DESCRIPTION & FEATURES
SAF 760 Widedek is anangular trapezoidal fluted sheet and is similar in appearance to IBR profiled sheeting,the difference being the cover width of the sheet, and the depth of the flutes. IBR sheeting has a cover width of 686mm whereas SAF 760 has a cover width of 760mm. The depth of the flutes on IBR sheeting are 36,5mm and the depth of SAF 760 is 28,5mm. The SAF 760 profile has a bigger cover width than SAF 686, resulting in an approximate saving of 10% on sheeting purchased. Using this type of sheeting has certain cost saving advantages.
- The SAF 760 profile giving a better coverwidth means a saving of ±10% on sheeting purchased.
- To achieve the same coverage less sheets are required to be erected,thus saving time and labour.
- The advantage of using SAF 760 in place of the sinusoidal corrugated profile is in its strength,that is to say the spanning capacity of SAF 760 is greater than the corrugated profile thus requiring less purlins resulting in a further cost saving
- SAF 760 Widedek can be factory cranked, curved and bullnosed to a wide range of radii.
The sheeting shall be SAF 760 trapezoidal type profile as manufactured by Safintra Roofing. The profile shall be roll-formed with 5 trapezoidal ribs at 190mm centres with a nett cover of 760mm. The rib height shall be 28,5mm and shall be fixed in accordance with the manufacturer's recommendations.
SAMPLE SPECIFICATION
SAF 760 Widedek Profile Roof Sheeting, fixed to intermediate steel purlins at 1600mm centres and to ridge and eaves purlins at 1350mm centres, with 12x55mm long class3 metal self drilling screws at every second crest at intermediate purlins and every crest at eaves purlins all in accordance with the manufacturer's recommendations.
MATERIAL OPTIONS
| Zinc-Aluminium | Gauge(mm) |
| AZ150 G550 Mill Finish | 0.47 / 0.5 / 0.53 / 0.58 / 0.8 |
| AZ150 G550 Painted | 0.47 / 0.5 / 0.53 / 0.58 / 0.8 |
| Aluminium | Gauge(mm) |
| Aluminium Mill Finish | 0.7 / 0.8 |
| Aluminium G4 Colortech | 0.7 / 0.8 |
PURLIN SPACINGS
Purlin Spacings are dependant on both downward loading and negative suction loading caused by wind. Your engineer should be consulted to calculate your load (kN/m2) for your particular application.
| GAUGE | 0.47mm | 0.5mm | 0.53mm | 0.58mm | 0.8mm | 0.8mm |
| TYPE OF SPAN | ZINC ALUMINIUM |
ZINC ALUMINIUM |
ZINC ALUMINIUM |
ZINC ALUMINIUM |
ZINC ALUMINIUM |
ALUMINIUM |
| ROOFS | mm | mm | mm | mm | mm | mm |
| Single Span | 1 350 | 1 350 | 1 500 | 1 500 | 1 800 | 800 |
| End Span | 1 400 | 1 400 | 1 550 | 1 550 | 1 850 | 850 |
| Internal / Double Span | 1 600 | 1 600 | 1 700 | 1 700 | 2 150 | 1 000 |
| Cantilever (Unstiffened) | 150 | 150 | 180 | 180 | 200 | 150 |
| Cantilever (Stiffened) | 300 | 300 | 300 | 300 | 360 | 200 |
| SIDE CLADDING | ||||||
| Single Span | 2 000 | 2 000 | 2 300 | 2 300 | 2 350 | 1 200 |
| End Span | 2 100 | 2 100 | 2 400 | 2 400 | 2 450 | 1 300 |
| Internal Span | 2 400 | 2 400 | 2 600 | 2 600 | 2 700 | 1 500 |
| Cantilever | 200 | 200 | 300 | 300 | 400 | 300 |
| Approximate Mass / m2 | 3.3kg | 3.7kg | 3.7kg | 4.3kg | 5.9kg | 2.9kg |
LENGTHS & ROOF PITCH
When using Widedek sheeting the recommended minimum pitch for roof slopes in excess of 15m is 10° and for slopes less than 15m is 7,50° Widedek sheeting can be ordered in any length, subject to transport limitations,up to 13,2m. Longer lengths require special transport arrangements.
TOLERANCES
A length variation range of +/-5,0mm, and width tolerance of +/-3,0mm are permissible.
