Loading

How to Install & Build a Porch Roof

A porch roof is essentially composed of layers of specialized materials that are designed to last for many years of natural exposure.  Above the structural trusses or rafters, your roof will be covered in 3/8” or 1/2” tongue and groove plywood. The plywood for the roof comes in 4’x8’ sheets and will hold the roof members together much like decking secures the deck frame. The next layer will be a minimum #15 roofing felt, which can be stapled in place over the plywood to create a water tight barrier for the shingles to cover. Install drip edge flashing to the lower edge of the roof and step flashing at the house wall. 

 

1.Siding2.Kickout Flashing3.Step Flashing
4.House Sheathing5.Gutter6.Roof Sheathing
7.Drip Edge Cap8.Asphalt Shingles9.Roof Felt

 

Most builders use 3-tab asphalt shingles that match the house shingles for porches. Snap a vertical chalk line down the center of the roof and start at the bottom. You want to trim the tabs off the shingles to create a starter course. Fasten the shingles so they overhang the drip edge by 1/2". Snap horizontal lines every 5" and vertical lines every 6" with a chalk line all the way across the roof as a guide. Use the lines to continue installing the shingles to the top edge of the horizontal lines in order to achieve the 6" desired offset. Use 4 nails per shingle for installation. A roofing nail gun can speed up this job dramatically. Trim the shingles at the edge of the roof. Cut 12"x12" ridge cap shingles from standard shingles and center them over the ridge and attach with 2 nails. If you want to try something different, you may look into installing a metal roof.
Roof Step Flashing Profile
PinterestSave

Popular Porches & Patios Articles
Porch Building

How to Build a Patio With Stone or Brick Pavers

Planning and installing a DIY brick or stone paver patio is a big project. Learn how to build a paver patio from start to finish here.

Porch Building

Shade Ideas for Decks, Porches, and Patios | Decks.com

Create a cool, relaxing haven with these 20 shade ideas. Perfect for decks, porches, or patios, these solutions help you stay comfortable while enhancing your backyard’s style.

Porch Building

How to Build a Porch: Steps for Building a Front Porch Deck

Building a porch can be challenging, but allows you to enjoy your outdoor space year round.Learn the basics about building a porch roof over a deck at Decks.com.

Next Step: Decking Articles
Decking Installation

How to Install Decking Over Existing Concrete Slab, Patio, or Porch

Discover the best techniques to build a deck over concrete, ensuring proper drainage and stability, while creating a beautiful outdoor space.

Decking Installation

How to Install and Fasten Deck Fascia

Installing deck fascia can be easy if you have the proper tools, fasteners, and practical information that you’ll find right here.

Decking Installation

How to Build a Floating Deck

A deck does not need to be attached to a house. Building a floating deck allows you the opportunity to create that perfect outdoor space anywhere on your property. Find out if a floating deck is the best option for your new outdoor oasis.

Get more helpful resources delivered right to your inbox

Explore Articles by Topic

Popular Porches & Patios Articles
Porches

9 Conservatory Design Ideas for Indoor/Outdoor Living

Conservatories are a great way to ensure that you (and your plants) can soak up the sun all year round. Get inspired with conservatory design ideas.

Porch Building

12 Backyard Gazebo Ideas

Gazebos are a great way to create a focal point in your backyard. Get ideas and inspiration before you start your gazebo project.

Porch Building

What is the Average Cost to Build a Front Porch?

The average cost to build a front porch depends on the type of porch and materials you use. Discover the costs of building a front porch at Decks.com.

Next Step: Decking Articles
Decking Installation

What to Consider When Building A Wrap-Around Deck

Looking to add a wrap-around deck to your home but unsure of what the process involves? Check out this guide to learn more about top considerations when building a wrap-around deck.

Decking Installation

Best Time to Build a Deck

People often wonder when the best time to build a deck is. Learn why building a deck in winter or fall might be your best bet.

Decking Installation

10 Common Deck Building Mistakes & How to Avoid Them

Building a deck can be a complicated process. Learn how to avoid falling into common deck building pitfalls with tips and advice from the experts at Decks.com.

Get more helpful resources delivered right to your inbox

Explore Articles by Topic