Veranda rafter fixings
The BRANZ helpline often gets asked about fixings for veranda rafters. These are not covered in NZS 3604:2011, but BRANZ has some advice.
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The BRANZ helpline often gets asked about fixings for veranda rafters. These are not covered in NZS 3604:2011, but BRANZ has some advice.
Jack studs and bottom and top plates must be solid timber members, but NZS 3604:2011 lets other solid timber members be replaced by built-up members. However, these need to be done correctly.
NZS 3604:2011 Timber-framed buildings does not define stud length or height. This is creating some confusion, especially when continuous studs for chimneys or parapets pass intersecting framing. BRANZ has some advice.
The beauty of dragon ties is that they provide extra lateral support to an external wall, allowing a bigger room size before a ceiling diaphragm is needed. There are some rules around their use though.
There are several ways to fix timber bottom plates to concrete floor slabs. One popular option for residential and commercial construction is using screw-type anchors inserted into predrilled holes.
It can be difficult to understand the requirements for joints in top plates, but here are some pointers from NZS 3604:2011 for top plate connections.
At BRANZ, we often get asked if it’s necessary to have a lintel over an opening in a wall under a gable end where the gable framing may be able to span the opening without support from the lintel. Here’s our advice.