Choosing The Right Paint For Your Metal Roof
Posted in Paints & Stains on November 10th, 2010 by admin – Be the first to comment
The repainting of a metal roof can be costly and frustrating if the correct paint is not used. The following four tips are essential when choosing a paint for the repainting of a metal roof:
Tip # 1: Know What You Are Painting: Most building materials experience varying degrees of thermal expansion and contraction. Metal panel is particularly prone to this phenomena. In summary, metal roof panels increase and decrease in length / width numerous times throughout the day / evening.
Tip #2: Paint Properties: Knowing that the metal roof expands and contracts, it is important to choose a paint with an appropriate degree of elasticity. Why do traditional household paints crack & peel so quickly after being applied to a metal roof? Answer: As the panel stretches, these paints are not elastic enough, become brittle and crack. Selecting the correct paint while using an ill-suited primer will result in a peeling roof.
Tip #3: Choosing The Right Product: Choose a water-based acrylic, elastomeric metal roof paint.
Tip #4: Paint Longevity: When applied in accordance with the manufacturer’s application instructions, a quality metal roof paint should last 8 – 12 years.
