Cheque Before Painting A Metal Roof

Painting tips & tricks

Cheque Before Painting A Metal Roof

Most people know about galvanic action, the corrosive effect that occurs when incompatible metals come into contact. But few people are aware of the damage to galvanised iron gutters and downpipes that can occur when an old roof is replaced with Zincalume, glazed tiles or painted metal sheeting. These materials, unlike roofing of galvanised steel, unglazed tiles or fibro, do not deposit metal salts and minerals as a protective coating on the inside of the gutter. Pure rainwater flowing from a chemically-inert roof may wash away the protective film on the inside of the galvanised guttering, causing rapid early gutter failure.


Asphalt Sealer Coating

Do not work in the sunshine, the best time would be evening or early morning shade.

Do not power wash.

1. Clean with T.S.P General Household Cleaner, heavy-duty mix. For any cracks or puddle areas, fill with premixed asphalt patch. Tamp in place with metal tamper.

2. For small cracks, use premixed asphalt crack repair.

3. Then apply asphalt sealer (not acrylic sealer) with a driveway brush, squeegee or 50 mm roller.

4. In the following years, clean with T.S.P General Household Cleaner and then seal with an acrylic sealer as needed.

Note: Never seal asphalt the first year, let the product cure and Harden.


Building Up Damaged Concrete Surfaces

Clean the area with T.S.P General Household Cleaner and rinse well. While still damp from washing apply a concrete adhesive (Weldbond) to the entire area. Mix the Bonded Topping mix to a thicker consistency (like muffin mix) and trowel over the prepared area. Texture the surface with a broom if that look is desired. Allow to cure for 24 hours, and then follow with the brightening concrete procedure. Leave for one week and seal with a solvent- based concrete sealer.

For severely damaged surfaces I would suggest hiring a Concrete Restoration service to place a new layer of concrete minimum of 1 ½” over the existing surface. If concrete is sinking in some areas I recommend using a Slab Jacking service to lift and stabilize the slab.


Benefits Of Latex Paints

The benefits of latex paints are:

• No or low odor.
• Quick drying.
• Easy application.
• Easy clean up.

Some interior latex paints also are splatter resistant.

Other pluses: Latex paints are more durable and have increased resistance to blistering and bubbling.


BAGGING

This technique creates a strong, textured look, Prepare the surface with a coat of matte oil- based paint, and working in sections of approximately 2 sq yds (2 sq m), paint on the tinted oil glaze. Place a rolled-up cloth in a plastic bag and run the bag over the surface in a pattern, such as overlapping circles. Wipe off any excess glaze from the bag. When the glaze is dry, protect it with a layer of matte varnish.