Tiled Roofs

The rigid character and inherent strength to weight ratio of UltraZED Purlins make them eminently suitable for cost effective inclusion in tiled roof construction which is often found in high status structures such as Schools, Hospitals and Retail developments.

Tiles over Steel Deck

Tiles and timber battens together with steel decking screw fixed to the Purlins affords a roof diaphragm which requires only the use of our push fit Purlin Ties (see reference table) on roof slopes up to 25º or SRS







Type Struts over 25º as follows.

< = 25º
1 number Purlin Tie < 6.1m span
2 number Purlin Ties > 6.1m - < 9m span
(1⁄3 and 2⁄3 span) > 25º < 65º
1 number SRS Type Strut < 6.1m span
2 number SRS Type Struts > 6.1m - < 9m span
(1⁄3 and 2⁄3 span)

Tiles and timber battens together with steel decking screw fixed to the Purlins affords a roof diaphragm which requires only the use of our push fit Purlin Ties (see reference table) on roof slopes up to 25º or SRS Type Struts over 25º as follows. < = 25º 1 number Purlin Tie < 6.1m span 2 number Purlin Ties > 6.1m - < 9m span (1⁄3 and 2⁄3 span) > 25º < 65º 1 number SRS Type Strut < 6.1m span 2 number SRS Type Struts > 6.1m - < 9m span (1⁄3 and 2⁄3 span)

Tiles over Steel Deck Condition at Eaves

The first Purlin must be :-

1.Braced against a suitable structural Eaves Beam member (> 30º NOT COLD ROLLED SECTION) or 2.Diagonal Purlin Brace assemblies should be fitted between the first and second rows of Purlins.

Additional Diagonal Bracing

In both of the above cases additional Diagonal Purlin Brace Assemblies should be included so that the maximum length of roof between bracing does not exceed 15 metres.

Tiles over Steel Deck Purlin Selection

We recommend the use of our computer software to select the optimum UltraZED section. However the published load tables may be used for this type of roof construction up to 20º roof slope.