Roofing Systems

Rooftite AC 5

A comprehensive roofing system comprising of waterproofing, thermal insulation and finishing, suitable for all types of flat roofs.. 

Rooftite AC5 is a water-based pure acrylic, washable and environmental friendly coating, forming a seamless membrane that resists to several harsh chemicals and bridges hairline cracks. Due to its white color, it has high emittance and reflectance, which will reduce heat penetration, keeping roofs much cooler in hot summer weather.

Rooftite AC5, Non accessible roofs, Permanent exposure, 5 years warranty, Industrial roof, metal roof, solar reflectance

A STEP-BY-STEP GUIDE

What you will need

Polytherm AC, Watertite CL 252, Polyseal 1PU

STEP 1: SURFACE PREPARATION

All the surfaces must be cleaned and made free of dust, dirt, moss, oil, grease and other loose particles. This can be achieved by grit/sand/shot blasting. As a minimum, vigorous wire brushing should be employed. All pin holes and surface defects shall be repaired with a suitable Polycrete* concrete repair mortar.

STEP 2: PRIMING

Polytherm AC does not require priming and can directly be applied onto the surface. In case of highly porous surface, a priming coat is recommended to seal the pores and stabilize the surface. The primer coat can be produced on site by diluting Polytherm AC 1 to 1 with water. Apply the primer coat @ 5m2/L and allow to dry.

STEP 3: CORNER DETAILING

Reinforce all corners with Watertite CL 252 sealing strip. The sealing strip shall be embedded into the first coat whilst it is still wet and covered fully with the second coat.

 

STEP 4: SEALING

Overlaps and bolt penetrations on the metal sheets shall be sealed with Polyseal 1PU sealant.

STEP 5: MIXING

Polytherm AC is a single component product but stir the contents of the pail thoroughly prior to application to remove any sediment. A slow speed drill and suitable paddle mixer shall be used to avoid the formation of bubbles.

STEP 6: APPLICATION

Once stirred, Polytherm AC should be immediately applied either by brush, roller or industrial sprayer. It is recommended that coating be applied in a minimum of two coats. Should not be applied if relative humidity exceeds 95%. Each subsequent coat shall be applied only after the previous coat dries off completely. After application the coating must be back rolled to reduce surface irregularities and improve bonding.

0.8L/m2/coat for 500μ DFT. [minimum recommended thickness is 1mm DFT and can be achieved in two coats

DOCUMENTS AND DOWNLOADS

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