Roofing cladding steel frame housing general fasteners rivets and tool accessories.
Fixing metal roof battens.
Metalcraft roofing s ceiling batten system is easy to install and manufactured using 0 55 bmt g550 high tensile z275 galvanised steel from new zealand steel.
Roof battens 1 from table 1 determine the uplift force on the batten to rafter or truss connection.
2 from details sheet 1 determine an appropriate connection with strength equal to or greater than the uplift force determined from table 1.
While roof battens are most commonly made of metal or wood they can be made of other materials like plastic or composite there are several different types of batten some combine two materials to get the needed affect.
Fasten the batten to every truss or rafter with a 12x40mm timber fixing screw minimum fixing size through each flange as shown below.
Metroll roof battens may vary slightly between branches.
Fixing to timber and light metal zips zips are the recommended solution for softwood timbers and light weight metal battens up to 1 5mm thick.
Standard roof batten 0 55mm bmt g550 40mm high.
There are several things to consider when determining whether or not to have your new metal roof installed over battens.
In exposed conditions unwashed areas subject to salt laden air or other corrosive matter may need additional protection.
Cyclonic roof batten 0 75mm bmt g550 40mm high.
Available in mto lengths.
Available in standard 0 55mm and 0 75mm gauge for cyclonic areas.
Fasten the batten to every truss or rafter with a 10x16mm hex head self drilling screw minimum fixing size through each flange as shown below.
Repair of sheet metal roofs in cyclonic areas 7.
According to bs 5534 the nails used to fix battens to rafters should usually have a diameter of at least 3 35mm.
When you re ready to secure the battens to the rafters the first step is to ensure you re using the right nails.
Metroll roof battens are an effective alternative to timber battens or purlins.
Types of roof batten systems.
Roofing battens batten to timber fixing.
Ceiling battens can be supplied either stand alone or with a hanger tab to accommodate different installation requirements and is suitable for residential and commercial internal applications.
Fix the battens into place.
By design some metal roofs must be installed over battens some must never be installed over battens and some can be installed over battens or solid decking.
Metal roof battens may also be used with steel or timber support framing.
Stramit roof and ceiling battens are not recommended for use in enclosed areas within 450mm of moist soil.
Metal roof battens offer extraordinary strength to weight values and are lighter than timber battens.
Batten to steel fixing.
Stramit roof and ceiling battens will give excellent durability in most applications.