Lightweight roof claddings generally for residential structures built according to nzs 3604 2011 timber framed buildings a lightweight roof cladding is considered to have a mass no greater than 20 kg m.
Nzs 3604 roof framing.
Print timber framed buildings.
It is aligned with as nzs 1170 structural design actions and is referenced in acceptable solution for building code clause e2 external moisture e2 as1.
In the previous version of nzs 3604 purlin tables provided for extra fixings around roof edges and ridges reflecting the greater wind uplift in these areas.
You can follow nzs 3604 for structure and e2 as1 for the roof and wall claddings.
The bracing requirementfor monopitch roofs is addressed in nzs 3604 2011 timber framed buildingsparagraph 10 3 4.
The rafter span is 3 000 m and because this is a light roof the far right column of nzs 3604 2011 table 10 1 rafters for all wind zones see figure 2 can be used for rafter spacings at 1200 mm see note 4 in table 10 1.
10 1 11 the building envelope wall and roof claddings.
Nzs 3604 sets down construction requirements for timber framed buildings within the limitations specified in 1 1 2 nzs 3604 applies only to buildings within the following limitations this is not a complete list.
Builders architects engineers designers and students will find it useful.
Nzs 3604 is used to design most homes and other low rise timber framed buildings in new zealand.
A buildings shall be founded on good ground.
Nzs 3604 is new zealand s most sought after standard.
Current the latest up to date edition.
B buildings shall be category iv or v buildings see table 1 1.
Nzs 3604 1999 incorporating amendment no.
1 and 2 new zealand standard timber framed buildings superseding nzs 3604 1990 and nzmp 3600 part 1 1992.
10 roof framing 11 building envelope roof and wall claddings 12 interior linings 13 ceilings additional information normative.
This modern profile metal sheet roofing is an example of a lightweight roof cladding.