Furring Channel Cad Block Strength

Furring Channel Cad Block Strength.How to Back Block Plasterboard Joints

Hopestar B005 Butt Joint Batten has been developed with the plasterboard industry and provides a consistent recess shape for the finishing of joins when installed as per the plasterboard manufacturer’s recommendation.

Use Hopestar B005 for a faster,more cost-effective joint with greater strength.

Back-blocking is a joint reinforcing system where Hopestar B005 back blocking battens are screwed behind the sheets,at certain joints.Back-blocking is an important safety measure,to reinforce certain joints which often undergo additional stresses and are therefore more vulnerable to cracking.

These stresses can be caused by many reasons,including subsequent building movement or by abnormal loadings such as heavy traffic beside the wall,or trades people moving about in the ceiling spaces.

The consequential cracking of the finished jointing often requires a call-out for warranty repair,which is an avoidable and unwanted additional cost to the installer/builder.

Back blocking is recommended by all plasterboard manufacturers.

The decision as to back blocking of all joints not just the minimum requirement in the Standard is best made by the builder after consideration of factors such as:

Moisture content of timber

Maintenance history for similar installations

Type of roof framing and timber used

Severity of temperature and humidity conditions to which the installation will be subjected

Butt joints which are to be back-blocked must be formed midway between framing members.

Where mid-span butt or end joints are not required but are used to minimize plasterboard wastage,these joints must also be back-blocked.All mid-span joints must be positioned within 50mm of the mid-span point between the framing members.

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