Galvanised Iron Roof Paint

Get off as much paint or rust as you can.

Galvanised iron roof paint.

Many metal roofs are made out of galvanized metal which is a type of metal that has been covered with hot zinc in order to protect it from the weather. Sweep off the roof using a broom to remove all pine straw leaves and surface dirt. Wash the galvanized metal using a pressure washer. Scrape rust from the roof using a wire brush.

Wait a full 24 hours for the roof to dry. A paint which will stick well like self etching primer is good and it s necessary if you have real rust. Wait until a day when no rain is expected and the temperature is cool. You can also use oil based alkyd paint but.

The surface of zinc metal oxidises rapidly to form a protective carbonate oxide layer which protects the zinc from further damage. How to prepare a rusted galvanized metal roof for painting. Rather this is just a phenomenon that often occurs in galvanized materials due to intermetallic alloying of iron and zinc i understand and is not indicative of the end of the useful life of the galvanizing. Old galvanised iron may lose the protective zinc coating and red rusting may then occur.

This layer causes most paint failures because it can be relatively weak. This results in paint flaking. Painted metal roofs come with a baked on factory finish and you can re coat these as well as paint bare metal roofing with acrylic latex paint. Get free shipping on qualified galvanized metal primers or buy online pick up in store today in the paint department.

Place a ladder next to the structure and climb up it to access the roof. Access the rusted galvanized metal roof using an extension ladder.