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HomeBuildHow To Extend A Roof Over A Patio

How To Extend A Roof Over A Patio

How To Extend A Roof Over A Patio

Design of a roof addition over an existing concrete patio in Bozeman, MT part 1
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How to attach a patio roof an existing house diy pj fitzpatrick.

Invite over friends and family, have a barbecue and enjoy the products of a patio extended with pavers provides plenty of room for table, chairs, and endless possibilities for.

Building permits, city and neighborhood code restrictions, dealing with subcontractors, liability insurance, and other factors can complicate matters for most homeowners.

Design a roof extension over an existing patio.


How to build a kidney shaped patio and sitting wall.

Existing patio is outside the dining room on the west side of the house.

There are many variables that go into replicating your existing roof to extend it over the patio.

Adding a roof or covered area to your patio will give you more protection from the elements, such as pool season might be long over, but you can still enjoy the water even when the air is frigid.

Adding a patio roof to your existing home can create a nice look that effortlessly flows out from your home’s roof.


Discusses roof tie in and other renovation considerations. Remodeling and general remodeling services in bozeman 59772, livington 59047, belgrade 59714 , manhattan 59741, clyde park 59018, callatin gateway 59730, emigrant 59027, wilsall how to attach a patio or verandah to a house. Design a roof extension over an existing patio.

Extend the roof over your new patio extension. Build an arbor or pergola and cover with vines. Use interesting details like vases, unique plants, etc.

Cut And Install Rafters

Before you install the rafters you will have to make special cuts called “tails” and “bird mouths”. These notches are designed to fit against the rafter board and over the header.You will need a rafter square in order to lay out the cuts on the boards. Building a porch roof requires accurate measurements. Although not difficult, laying out the cuts to fit precisely requires practice and skill.

What Is The Roof Over A Deck Called

The roof over a deck is usually called a patio cover. This attached structure provides protection from sun and rain and can either have a solid or open roof. Pergola is another name for deck or patio roofs. This is typically characterized as an open roof thats supported by posts or columns. They provide filtered shade to outdoor living areas.

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Plan Ahead To Avoid Construction Headaches

You can add this screened in porch to almost any house, but attachment details may vary from what we show here.

  • On most two-story houses, you won’t have to worry about tying into the roof, but you may have to situate the porch carefully to avoid covering a window.
  • The house roof sloped 5 in. per foot and extended 18 in. at the overhang. Your roof may vary from this, and the details of how the porch ties in will vary as well.

These illustrations above show the plans for the screened in porch, deck framing, gable framing, ledger, truss block, side walls and the end wall. To print these how to build a porch plan, see Additional Information at the end of this story.

Building A Porch Roof

Extend Roof Line For Covered Patio

Building a porch roof or screened in porch roof over an existing deck or patio can be fairly straight forward or very complex depending on the type of roof you choose.We show you how two different roofs are constructed so you will know what is involved.Most porch roofs are typically shed roofs or variations of hip roofs.The biggest challenge is determining the rise and run and cutting a “bird’s mouth” at the outer end of the rafters that rests on the header.

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Patio Design & Budget

  • Our patio construction experts make sure that each project turns out;perfectly.
  • We can adjust the size and scope of your shade cover to keep costs within your budget.
  • Our desire is to create the shade addition of your dreams.

When it comes to building quality insulated aluminum;covers, Houston clients will tell you that we are industry experts. Our local construction professionals design and build patio covers Houston homeowners are proud to own.

What additional considerations are there when installing covered porches in the Houston area?

  • Custom stone or brick columns can be installed.
  • Color options to match your home.
  • Screen walls that enable any shade cover to be converted into a fully enclosed screened porch.
  • Drainage is a important so we install gutters on every cover that we build.
  • Since the size of a shade structure impacts price, we can build any size or shape to suit your need.
Actual Client Review:

Price was reasonable and we received a quality product. Work was completed in the time promised. Crew demolished old patio cover and tile patio, removed debris from property and cleaned up work site completely at completion of project. I would recommend this company.

John Walters in Montgomery, TX

How to make patio construction easy to understand?
People also ask:

What is a covered patio called?How much does it cost to put in a covered patio?Is a patio cover or pergola cheaper to build?

Actual Client Review:
  • Sugar Land

Modern Industrial Entry Courtyard

An entry courtyard for a home-based work/art studio designed by;Homes by Monticello;in Missouri features cedar decking and slat walls. A corrugated plastic roof adds rain protection and allows natural sunlight to;filter through. The home is built around a grain silo, giving it a “modern industrial” sensibility.;

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Tips For Joining The Screened In Porch And House Roofs

If you’re not sure how to neatly join the screened in porch and house roofs:


  • We recommend hiring an architect to help work out the details.
  • Another option is to build a full-size mockup of a roof truss out of inexpensive and lightweight 1x4s. Figure out where the top of the wall plate would be if you built the porch according to our plans . Then support the mocked-up truss at this height to see how the porch overhang meets the roof.
  • If you don’t like the way the overhangs intersect, adjust the level of the deck slightly, alter the wall height or change the width of the overhang.
  • Contact your local building inspections department to find out what’s required to obtain a building permit.
  • Start this process at least a month before you plan to build. This will allow enough time to work through potential problems.

Try These To Make Your Roofing Job Easier

Construction of a roof addition over an existing concrete patio in Bozeman, MT part 2

Mary and I discovered these products that we believe will make your porch roof project easier to complete. We may receive a small commission on sales.Please don’t add to the 250,000+ ladder accidents annually.

Ladders are one of the most dangerous tools you’ll use. Take it from experience, falling off a ladder is not fun.I’ve made several home-made gizmos to level my ladder but thought the one we are featuring below is a much better bet. Easy to use, safe, and will level a ladder in seconds. It works on both step and extension ladders. Remember, it’s not the fall that’s hurt you but the sudden stop at the end!

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Plumb And Brace The Walls

Stand the walls and screw the wall corners together. The key to standing the walls is to check and double-check along the way to make sure they’re straight along their top and bottom plates, perfectly plumb and square, and securely braced. Start by positioning the walls with their outside edge flush to the deck and screwing them down. Next, screw the corners together, making sure the top plates of adjacent walls are even with each other. Use a long level to plumb the walls while you attach diagonal braces to hold them in position. Leave the braces in place until after the roofing is complete.

Pay Attention To Flashing And Roofing Details For A Watertight Job

Building the tie-in framing on top of the existing shingles is a good way to keep the house waterproof as you construct the porch, but when it comes time to install the roofing you’ll have to cut the shingles along each of the valleys with a hook-blade utility knife. Then pry loose the cut shingles to make a wide path for the valley flashing.


Cover the tie-in framing with 3/4-in. plywood. Add blocking as needed and fill in the triangular areas between the existing roof and the new roof.

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Install Flashing In The Roof Valley

We won’t go into roofing details here . In general, cover the eaves and valley with strips of a waterproof membrane and install the sheet metal valley. Place roofing nails about 12 in. apart along the edge of the metal valley. Cut a short piece of valley metal to complete the top on each side, overlapping it about 6 in. onto the long piece.

Staple No. 15 building paper to the remainder of the porch roof, starting at the bottom and working up. Overlap each row 3 in. onto the one below. Install shingles to match the house. Follow the manufacturer’s instructions for starting, overlaps and nail placement. Use 1-in.-long galvanized roofing nails to avoid nailing through the tongue-and-groove ceiling.

Fastening A Patio Roof To The House

framing

Expert advice on how to attach a patio roof to a house, with step-by-step instructions and construction diagrams.


A house-attached patio roof takes advantage of the houses structure by supporting one end of the roof on a ledger mounted horizontally to the house. The ledger, typically a 2 by 6, is usually designed to hold one end of the patio-roof rafters. Locating and mounting the ledger is normally a fairly easy process; the ledger should be attached before the foundation is built for a deck, patio roof posts, and other structure.

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Ending Thoughts On How To Attach A Patio Roof To An Existing House

Once youve learned how to attach a patio roof to an existing house, you can get creative. Leave the beams exposed if it fits your homes aesthetics. Use decorative trim or flashing to make the roof look premium.

Hide the nails and metal caps for a neat look. There are no limits once you get a grip on how to build the structure. Plus, once youre done, you can enjoy the outside and recharge your batteries with a dose of nature, regardless of the weather conditions, from the comfort of your home patio.

I hope you enjoyed reading this article about how to attach a patio roof to an existing house that we created with the help of Tidewater Roofing.

If you liked this article, you can also check out these:

  • Contemporary Sofa Designs For Small and Large Spaces

Stylish Beige Patio Roof

This patio roof complements the exterior very well. The soft beige color provides a relaxed ambiance to the patio so that it can be a great place to call it a day.

The pergola style allows natural light pass through which makes the patio shaded partially. You will not miss the warm of the sun when sitting in the patio.

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Staple The Screen To The Walls

The charcoal aluminum screening we used is strong and long-lasting, but you have to handle it carefully to avoid creases and dents. Carefully unroll the screen on a large work surface and cut lengths about 3 in. longer than you need. Reroll each piece and carry it to its location.

Start by tacking the two corners, making sure the screen is square to the opening. Then stretch the screen slightly and staple the sides, top and bottom. Place 1/4-in. staples every 3 in.

Translucent Fiberglass Patio Roof

Building of a roof addition over an existing concrete patio

Fiberglass is very versatile. Therefore, you can use it as the roof of your patio.

Fiberglass is pretty light and flexible. Its flexibility and weight make it quite favorable when it comes to patio roof.

Besides, fiberglass is quite cheap, but it can make your patio look more beautiful just like the one in this picture.

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Redwood Cedar Ipe And Tropical Hardwoods

Higher-end wood decking can run from $3 to $30 per square foot depending on its species. They offer exceptional aesthetic appeal over pine. They should last 15 to 20 years. Some versions of redwood and cedar are naturally rot-resistant, while others will require special stains and treatment to last.

Wood plank prices per square foot:

  • Cedar: $3-$7
  • Tigerwood: $7-$15.

Hill Country Patio Covers

  • We work hand-in-hand with our customers to achieve covered patio building excellence for all of our customers.
  • Our covered porches provide a comfortable space to entertain and enjoy the outdoors.
  • We can build a new outdoor shade structure to attach to any home, install a freestanding porch cover, or extend any existing covered porch roof.
  • Custom lighting options are available to customize any project, including ceiling fan installation, recessed lighting and outlet installation.
  • Our metal awnings & deck covers provide shelter from unpredictable weather conditions.

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Aluminum Patio Construction Benefits

  • Aluminum structures cost less than wood so a metal design will save you money.
  • Our Alumawood covered patios require little to no maintenance.
  • Alumawood covers look and feel like real wood, without the upkeep of genuine wood.
  • Metal and aluminum covers will not mold or mildew, which is important with San Antonios climate.
  • Aluminum porch covers will not crack, deteriorate or require painting.
  • Insulated roof panels will help keep your Austin patio cool.

Covered Porch Design Ideas

  • We will work with you to build your dream covered patio or carport within your budget.
  • Tell us what you desire and we will build a patio structure for your backyard to accommodate your wants and needs.
  • Our metal covered porches are resistant to damaging weather due to the quality of material used.
  • Each patio & deck cover project that we build comes with a lifetime warranty.

Our custom porch shade covers, awnings, carports &pergolas;are custom designed but very affordable.; In fact, our aluminum projects are not much more than a quality pop-up canopy. Also, we install patio enclosures such as screen rooms for an even more comfortable backyard shade experience.

People also ask

How much does it cost to build a covered patio?Does a covered patio add value?Does a covered patio add square footage to a home?Which is cheaper a deck or concrete?Is Alumawood cheaper than wood construction?

Absolutely. It is significantly cheaper. A wood frame cover will be at least twice the cost of Alumawood, if not more.

Do You Know Your Local Codes And Permit Requirements

Luxury Patio Roof Extension Ideas BW04js

Know and comply with your local building codes regarding roof construction in your area. In addition, pull the proper permits as required. Many people, especially DIYers, do not like to get permits due to time and costs.However, doing so ensures that your work is to code in order to protect you, your family, and your property. In addition, many insurance companies may not pay claims in situations where work was not to code. Words to the wise.

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Know These Basic Steps For Building A Porch Roof

The following steps to building a porch roof like the one pictured above shed or hip-type roof) will give you a general idea of how it’s done and what’s involved. We cannot cover every building method as they can vary widely from contractor to contractor.We also do not cover every aspect in detail but we give you sufficient information to assess your own abilities or to be able to ask the right questions of a contractor.Do not use the following information as a “how-to” guide; it is for information only.We highly recommend that if you are not 100% confident you can do the work safely and to code that you consult with a professional licensed contractor.We’ve also listed several books and tools, and products that will make your roof project easier and safer.

What Is The Difference Between A Patio And A Veranda

This term has two forms, verandah also being correct, although the version without an h is usually preferred. A veranda is a roofed platform along the outside of a house. Its level with the ground floor and often extends across both the front and the sides of the structure. It can be partly enclosed by a railing.

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Install The Ridge And Rafters

Cut the 2×8 roof plates. If you’re not good at calculating roof angles, start by estimating the angles and cutting the plates an extra 6 in. long. Then set them in place, remark the angles and recut them until they fit. Screw the roof plates through the roof boards into the rafters below. Next measure for the ridge, estimate the angle and cut it a little long. Trim the angle to fit and screw the ridge rafter to the first truss and roof plates. Complete the tie-in by installing a pair of rafters. The framing should be exactly 3/4 in. above the top of the trusses.

Average Cost To Build A Roof Over A Deck

I built a cover for my patio. How to build a covered patio DIY video.

Unfortunately, we wouldnt be able to tell you how much it would exactly cost to add a roof to your deck without scheduling a consultation and coming to your home. But we can give you an average range of prices that it would most likely fall within. They include:

  • Adding any deck covering or enclosure will typically cost between $1,000 $10,000.
  • Adding a covered roof to your deck will typically cost between $3,000 $10,000.

The cost will vary depending on the professionals hired, materials used, square footage, and weather conditions.

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