Why Roof Flashing Is Important for Your Roof

Posted on October 12th, 2018 by Applied Roofing Services

Roof flashing is an essential component of a roof which needs to be installed correctly to ensure a long-lasting and waterproof structure. Flashing plays a significant role in protecting your roof and has a host of advantages that you might be unaware of. Here is an overview of why good quality flashing is required in roofing systems.

Roof Flashing

What Is Roof Flashing?

Roof flashing is a weatherproofing system for roofs that involves placing strips of waterproof material (generally metal) on gaps in your roof to help prevent water seepage. These strips of metal are fitted between the exterior roofing layer and the waterproofing film called felts. Flashing helps seal these off just like sealants and caulking do in the areas close to the windows and gutter seams. In addition to galvanized steel, materials like rubber and plastic, aluminum, and copper are also used by roofers.

The following are some of the common types of roof flashing:

  • Valley Flashing
  • Drip Edge
  • Vent Pipe
  • Step and Continuous Flashing

Why Roof Flashing Matters

Today, flashing is considered a vital construction practice, and it’s extensively used in commercial, residential and industrial buildings. Flashing plays a key role for several reasons including:

  • Without the right flashing, a roof could be susceptible to leaks, which reduces its lifespan significantly.

  • It provides additional protection from leaks in areas that are vulnerable to expansion, contraction or the accumulation of precipitation such as ice and snow.

  • It offers a waterproof barrier to the roof that accumulates water seeping through it and diverts it back out of the roof.

  • Flashing decreases the risks of leaks in the building interiors and also stops moisture related development of mold or damp.

  • The flashing membrane also stops insects from gaining access into the roof and cause damage to the roof structure.

  • Flashing delivers an aesthetic charm by outlining the roof edges to make them appear sleek, neat and polished.

Since flashing protects vulnerable parts of a roofing system, it normally makes sense to get it inspected regularly by roofing professionals to ensure that your flashing stays in shape.

Contact us today to get a complimentary roofing estimate quote or to learn more about our excellent roofing services!

About Applied Roofing Services

Applied Roofing Services is a full service roofing company located in CA. We offer durable and high quality residential and commercial flat roofing. We provide roof installation as well as roof repair services, roof maintenance and inspection services. We specialize in low slope roofs, energy efficient, zero maintenance, and green roofing. We have 20+ years of experience in the roofing industry.

Friendly Roofing

How to protect your roofing investment by selecting the right roofing contractor?



Orange County Office:

1961 N. Main St.
Orange, CA. 92865
Phone: 714-632-8418 or
(800) 895-9589

Get Directions

Los Angeles Office:

1055 West 7th Street
33rd Floor Penthouse
Los Angeles, CA 90017
Phone: 213-255-3677

Get Directions


San Bernardino Office:

8333 Foothill Blvd
PMB # 411
Rancho Cucamonga CA 91730
Phone: 909-361-6119

Get Directions


Need To Know More?
Download our E-Brochure

Customer Review...

ARS has been my only foam roofing contractor nearly 15 years. There service is excellent and price competitive. I would recommend them highly

Dave A

crrc energystar bbb bestroof