RENDALOK® FIRE PROOFING

TrussForte RENDALOK^® FIRE PROOFING is a galvanized steel lathing (metalath) expanded metal mesh used as a base or key for supporting fire proofing sprays on steel columns and beams in fire rated construction projects.  It has a mass per unit area of 1.84 kg/m² (3.4 lbs/sq. yard), and greater than 98 meshes per meter along the Short Way Measurement (SWM).

• Building Code of Australia (BCA) compliant.
• Can be used with steel or timber frames.
• Available in sheets for ease of use.
• Can be easily formed (folded, shaped) around corners or complex arrangements.

Common Uses of this product:

• Reinforcing for fireproofing of steel beams and columns as a base for application of gypsum-perlite or gypsum-vermiculite  spray plaster.
• Heavy duty key for plaster walls, ceilings, ornamental plaster work.
• Heavy duty key for cement rendering of walls and ceilings.
• Reinforcing of the mortar bed for tile floors laid on sheet floor materials.
• Reinforcing for ceramic wall tiles on timber frames.

Installation Information:

TrussForte RENDALOK^® FIRE PROOFING can be fixed to steel or timber building frames, using non-corrosive self drilling screws for steel and galvanized flat head nails for timber.

TrussForte RENDALOK^® FIRE PROOFING should be installed with the long dimension of the mesh across the studs, and the sheets should be fixed so that the strands all slope DOWNWARDS and INWARDS.  Lapping ends should not be less than 25 mm, and sides not less than 12 mm. Tie laps with 1.25 mm galvanized wire every 150 mm.

Fasten to the background at edges and at supports at a maximum of 150 mm centres. Place fixings in the corners of the mesh diamonds ensuring the heads cover two strands.

Ensure that sheets do not finish on corners, but bend them at right angles to finish at least 150 mm on adjoining surfaces.