Winter is upon us, the time has come to do some maintenance work and minor repairs to your flat roofs. This technical assessment must be carried out at least once a year. With the best range of products from Hunstville Roofing Companies and their useful tips, you can easily do this work yourself. In this way, you will be sure that your roof will be perfectly waterproof during the whole of the last season and the winter.

  1. Clean the roof

Roof maintenance begins with thorough cleaning of the flat roof. All leaves and other dirt should be removed with a brush and / or pressure washer.

  1. Remove the foam

To detach foam plates that cannot be torn by hand and to prevent re-growth, use Derbinet NT. This long-acting de-foaming product cleans the roof while degreasing it. Apply Derbinet NT with a brush.

  1. Blister repair

Blisters may form on the roofing of the roof. This can cause tears, allowing moisture to penetrate easily. The repair is done in several stages, which contributes to obtain a perfectly waterproof roof.Make a cross incision in the blister using a cutter.Unfold the four corners outward.Be sure to dry well and apply Derbimastics extensively on the support and on the underside of the perfectly cleaned lips.Fold the four corners again and press firmly.Spread the excess sealant over the seams and apply an additional layer of Derbimastics on the incisions.Place a strip of fiberglass on the repair and apply a new coat of Derbimastics on it.

  1. “Regenerate” an old membrane

If the membrane has not been maintained for a long time and if it is damaged or blistering, a deep repair is required. This is called the regeneration of a flat roof. Roofing companies has developed for this purpose Derbiliquids, a black paste specially designed to repair any type of bituminous waterproofing. This product can easily be spread evenly and provides a perfectly sealed coating. A new waterproof membrane can then be applied to it.

Derbisilvertop has the same properties as black paste, but it has an aluminum color forming an excellent heat shield that significantly reduces the temperature of the surface. This coating is also suitable for aluminum, steel plate or cement-bonded fiber plate roofs.

  1. Verification of the finish

Check not only the roof, but also the profiles and joints with the walls, cupolas, chimney, etc. Small defects can easily be repaired with the derbimastics cartridge.

  1. Cleaning the cornice

For the disposal of rainwater, moss, leaves and other waste, the cornice and downspouts must be in perfect working order. Open, clean and degrease are essential operations. You can repair cracks and holes with repair sealants. To prolong the life of non-ferrous metals such as zinc and copper, expert recommend that you coat them with the silver coating sealants. A second layer can be applied 24 hours after laying the first one.