Normally, aluminum roof coatings have a service life of between 3 to 7 years, depending on the surface coated and other factors. Fast drying and unaffected by water immediately after application, can be applied when rain is imminent, and is therefore ideally suited for winter use. per litre per coat depending on the porosity of the substrate. Two coats give a dried film of approximately 0.9mm Note: These instructions follow the recommendations of the National Federation of Roofing Contractors Code of Practice governing the use of Liquid Coatings for Roof Waterproofing.

Unaffected by water immediately after application can be applied when rain is imminent, not to be applied to wet surfacesCan be used to bond felt, the waterproofing of guttering not plastic, can also be applied to structural steel work.

May be used in conjunction with a rot-proof hessian reinforcement scrim or bitumen coated glass fibre scrim such as a Glass Membrane or Scrimtex Glass Fibre Reinforcing. or sika 120 fleece Apply two coats of 905 to the warm side of the wall. Make sure to avoid pinholes. Once dry, apply the insulation over the top of it. If an aluminum surface roof coating must be applied sooner to a new built-up roof, a water based emulsion coating should be used instead of a solvent-based asphalt coating. An emulsion coating will provide a firm base on which to apply the aluminum coating 5 to 10 days after the emulsion has cured. Safety recommendation: Do not coat windows, rooflights, glass or translucent sheets. These will constitute a hidden hazard if disguised. This roof coating provides 1.25m² of coverage per litre which varies dependent on the porosity of the substrate. Two coats offer a dried film of approximately 0.9m. Your tools should be cleaned with white spirit or paraffin.

Use in wet or dry conditions

Aluminum coatings in the can are typically a bronze color. Thorough stirring will turn the product silver, but it may still have a slight bronze tone while applying. However, as part of the curing process the product “transforms” to create a bright silver film. So even while you’re applying the product, some areas will have turned bright silver while the most recently applied areas are in different stages of turning from silvery bronze to bright silver.

Preparation of the surface is of great importance and will influence the degree of adhesion and life of the renovation. All roof surfaces to be coated should be sound, stable, clean, i.e. free from loose debris, dirt, dust and grease. All traces of algae and fungi growth should be removed using a stiff-bristled brush. Where algae and fungi have been present, remove them completely and treat the surface with Everbuild fungicidal wash to kill any remaining spores, thereby discouraging the return of the growths. Can be used with reinforcing or without for damaged and more frail roofs it is recommended to use Scrimtex Glass Fibre Reinforcingor sika 120 fleece Can new built-up roofs be coated with aluminum coatings sooner than the recommended 90 to 180 days weathering period? Paint the inside of each lap with 905. Bridge any small gaps and make sure that the membrane is not pulling too tight.

Aluminum coatings should be a uniform, bright silver when dry. Several issues can contribute to creating a non-uniform appearance, including overlapping, improper mixing. rain, dew or snow. Safety recommendation : d o not coat roof lights, windows, glass or translucent sheets. These will constitute a hidden hazard if disguised. Preparing the surface is incredibly important and will impact the amount of adhesion and life of the renovation. All coated roof surfaces should be clean, stable, sound and free from loose debris, grease, dust and dirt. All hints of fungi and algae growth should be completely removed with a stiff-bristled brush and surfaces should be treated with Everbuild fungicidal wash to destroy any residual spores and prevent the return of growth. Apply the first coat of 905 to a clean and receptive surface then apply a glass membrane straight after whilst still wet. Aluminum coatings do not perform well on roofs that pond water. Dirt can accumulate in depressions and inhibit the reflectance of the coating. If an aluminum coating is under water for a prolonged period of time, the water may work its way under the coating causing it to peel. Positive drainage is needed to flush away surface dirt and retain the reflective properties of the aluminum coating.