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The Decragard Roofs Coating System can bring new life to most Kiwi roofs...

Gerard Roofs Decragard coating system can extend the life of your existing roof and refresh the look of your home for about a 1/3rd of the cost of re-roofing; through roof cleaning, repair and repainting. 

This system is designed for concrete tiles, metal tiles, corrugated roofing, colour-coated steel, or Decramastic tiles.   The Decragard coating system is ideal for roofs that are looking tired or deteriorating, but not beyond repair. 

We are specialists in recoating your roof, and if your roof has been maintained this can be the best way to keep it in top condition.  You can choose to retain the same colour or change to a totally different colour to match the rest of your house.  A wide selection of colours is available.  We can provide you with samples if and as required and can give you some addresses to visit so you can see the finished result. 


Photo on the right is of the Trentham Army Camp Chapel that we recoated the roof and re-roofed the steeple.



The Recoating Process

  • Fix any dents or replace any damaged tiles as necessary
  • Spray moss and lichen.  Moss/Algae/Lichen growth is detrimental to your roof.  It indicates moisture is present and it can stop proper roof drainage, which may cause your roof to leak.  Growths can also cause chip loss.  
  • Waterblast roof to remove any loose chip and grime. A roof cleaning treatment is applied over the entire roof to clean the tiles and kill growths. This is followed by a thorough roof clean using a water blaster to ensure the roof is free of loose debris. This ensures that your new roof coating has as permanent grip on your roof. 
  • Fix any damaged or cracked tiles, fix broken mortar, remove dents in metal roof tiles and apply a rust treatment if required. 
  • Spray on bituminious primer basecoat and rechip
  • Spray on Decragard roof coating topcoat in colour of your choice
  • Provide AHI Roofing's 10 year pro rata warranty





It is recommended that if you collect rainwater for drinking water that the collection system is disconnected for at least 3 good rainfalls before being reconnected. 

Please click on this link Mather Roofs & Coatings if you would like an obligation free quote