Tuesday, May 24, 2022
HomeBuildHow To Build A Roof Over A Concrete Patio

How To Build A Roof Over A Concrete Patio

Lay The Sleepers And Predrill For Concrete Screws

Building of a roof addition over an existing concrete patio

The sleepers don’t have to be level; they can follow the slope of your patio. But they do need to form a flat plane. If your patio is in good shape, you’ll get a flat plane automatically. If your patio has ridges and sunken areas, you’ll spend lots of time fussing with shims.

To preview the situation, lay a straight board across the patio in a few spots. Look for the highest hump in the patio and fasten your first sleeper there. Then work outward from the high spot, adding sleepers and checking for flatness along each sleeper and across them. Add shims to raise low spots.

Drill through sleepers, spacers and into the concrete with a hammer drill, then drive in concrete screws. Overhang the sleepers along one edge of the patio and trim them to exact length later.

Placement Of Header Determines Level Of Roof

Start With Ledger Board

A ledger/header board is the first step if you are attaching the patio roof to an existing structure. The placement of the ledger/header determines the level of the roof, so be sure it is positioned at the correct height and is horizontal. When fastening ledger/header boards to wood, the ledger should be held securely with bolts through the wall or lag screws.


Metal Patio Roof Ideas

A metal patio roof is easy to install and one of the more affordable options you have. The aluminum will require minimal maintenance and upkeep while also being quite durable. The sheets of metal are strong enough to provide you with lasting protection from the natural elements. Plus, you wont have to worry about it rotting, cracking, or warping. Youll need a frame for the metal to mount on, and that tends to be wood.

Metal conducts heat well, which means it can get hot under your new patio roof. You can combat this by installing fans to help circulate the air. Include see-through panels in your roof to help filter light through and keep your patio space bright and welcoming.

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Fastening To Masonry Walls

How to Build a Patio Cover With a Corrugated Metal Roof ...

Anchor a ledger to a masonry wall with expanding anchor bolts. Begin by marking a line across the wall for the ledgers top edge. Drill holes for the expanding anchors every 16 inches or as specified by local codes, insert the anchors, hold the ledger in place, and tap it with a hammer to indent the anchor locations on its back face.

Remove the ledger, and drill bolt holes where the bolt tips have left marks. Push or hammer the ledger back onto the bolts, recheck for level , add washers and nuts, and then tighten the bolts.

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Flashing A Patio Roof Ledger

Unless it will be protected from rain by the houses eaves or a solid roof, a roof ledger that is fastened directly to a house with wood siding should be capped with galvanized metal Z-flashing that tucks up under siding to prevent water from seeping in behind it.

Where integral flashing isnt possible, such as on a stucco wall, use Z-flashing and caulk the top edge. This is a job you must do before fastening the overheads roof rafters in place.


You can buy L- or Z-shaped flashing or bend it yourself. To bend sheet-metal flashing, make a form by clamping two 2 by 4s together on each side of the metal, and then hammer the metal to create a sharp edge at each fold.

Fit the flashing in place, caulk the top edge, and nail it with galvanized nails long enough to penetrate at least 1 inch into the structural members. Then caulk the nail heads.

If the house is sided with shingles or lap siding, simply slip the metals top edge up under the bottom edge of the shingles or siding as far as possible.

NEXT SEE:

You Can Build A Diy Concrete Patio Step By Step

It’s easy to pour and build a backyard patio made of concrete in this How To article. On a small scale, concrete is fairly easy to work with, but installing an entire patio can be a challenge. It is possible to build an attractive concrete patio yourself, but careful planning and preparation is necessary. Be sure to place all the concrete at once; a big patio can be broken down into smaller manageable sections using 2×4’s.


Once concrete is in place, you’re stuck with it forever; replacement is costly and difficult. Planning is essential for a perfect DIY conrete patio.

Build and install forms, making sure they’re level and properly graded for drainage. To prevent rain puddles from forming, design a 2% slope . Place and level a 4″-6″ bed of gravel; you need a gravel base in areas of poor drainage or freezing temperatures. Be sure to compact the gravel base and rent a compacting machine if necessary.

Check gravel thickness with a homemade template that extends down from the tops of the forms 4″ of the finished patio; when it just touches the top of the gravel, the base is thick enough. A taller slab will be stronger- we recommend 4″ thick. Let the gravel extend under the edges of the forms.

If the patio will abut an existing concrete patio or slab, install isolation-joint strips. Attach the strips flush with the top of an existing slab using hardened concrete nails or construction adhesive.

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Resurface Your Concrete Patio

If youre just looking to give the old patio a refresh and make it look new again, resurfacing is an uncomplicated option. You can buy the needed supplies easily and knock out the job in a weekend.


  • Clean the Patio
  • The first step will be to clean the patio. Use a pressure washer to remove stains, dirt and debris. A little tip just this step alone can take years off the look of your old concrete patio. Removing those old mildew stains and spilled sodas is like a facelift for your patio.

  • Repair the Patio
  • Before you resurface the whole patio, spend a little time patching the cracks and pits. We recommend Sakrete Flo-Coat Concrete Resurfacer. For this stage, mix it to a consistency that lets you apply it easily with a trowel. Let the repairs dry completely before the next step.

  • Resurface the Patio
  • Once your repairs are dry, completely saturate your concrete patio with water, then remove any standing water. Work in manageable sections, as the resurfacer will set up very quickly, and make sure to separate the gaps between workspaces to maintain the spaces between slabs. Mix the resurfacer one work section at a time and apply with a long-handled trowel, then go over it with a push broom or squeegee to get that flat finish.

    Are Roof Decks Worth It

    Design of a roof addition over an existing concrete patio in Bozeman, MT part 1

    Most homeowners will agree that a roof deck is worth the price. Not only will it protect you from the elements when youre outside, but it will also improve your homes curb appeal and resale value if youre looking to sell it in the future. Contact your local roofing contractor to see what they can do to help.

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    How To Build A Gable Porch Roof

    Gable roof is the most commonly found type of porch roof. It has a shape of a triangle with a certain pitch and sloped sides. Whether you are thinking of adding a gable porch to an existing roof or building a new one, it is beneficial to help your shed water and snow.

    Here is the guide on how to build a gable roof over a porch;you may follow:

  • On the ground, dig the holes for every post spot with a width of 12-18 and a depth of 18. Set concrete in cylindrical shape within the hole and then cover with concrete. Arrange post anchors while the concrete hasnt dried up yet. Then let it sit for at least 24 hours.
  • Size and trim support posts in 6 x 6 that suit the dimensions of the roof. Install the support posts on the anchors and set them loosely using bolts and nuts. You need to ensure that the posts are upright by bracing them tentatively while securing the bolts and nuts.
  • Size and trim two lumber pieces in 2 x 8 that suits the distance between each support post. Lift the 2 x 8 lumbar pieces with the help of someone else, and nail one of the 2 x 8 lumbar pieces temporarily to every side of the support post, but make sure the nails can be removed easily later on.
  • Put a mark on roof trusses locations, beginning from the shorter roof side, once every 24 in the center of lumbar pieces. Lift the end of roof trusses with someones help to the location according to your mark and set it by using nails. Brace it for a while and repeat the step for the remaining roof trusses.
  • How To Pour A Concrete Slab

    Thoroughly dampen the gravel. Start placing the concrete at one corner of the form while a helper uses a shovel or hoe to spread it .

    Pour the concrete up against the form and compact it into all corners with a square shovel or mortar hoe; with a hoe, push- don’t drag the concrete. But don’t overwork the concrete, and don’t spread it too far; overworking will force the heavy aggregate to the bottom of the slab and will bring up small particles that can cause defects in the finished DIY concrete patio. Instead, space out your placement along the form, placing each batch against the previous batch to fill the form.

    If you plan to leave the dividers in place, finish, and cure the concrete in alternating sections. Once they’ve cured for at least three days, remove the stakes from inside of the remaining sections and complete them.


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    Translucent Fiberglass Patio Roof

    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.

    How To Attach A Patio Roof To An Existing House Protradecraft

    How To Build A Gable Roof Over A Patio

    28 Dec 20 9 … Two videos cover the design questions and construction process of a post and beam patio roof structure. … Existing patio is outside the dining room on the west side of the house. the patio is essentially unusable on a sunny afternoon in the … The plate is bolted to the concrete with 5/8 inch expansion bolts.Get Price

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    Two Videos Cover The Design Questions And Construction Process Of A Post And Beam Patio Roof Structure

    Video 1: Design a Roof extension over an existing patio

    Existing patio is outside the dining room on the west side of the house. the patio is essentially unusable on a sunny afternoon in the summer.

    This video looks at a couple of design options, including attaching the roof ledger below that of the existing eaves and setting the patio roof atop the existing roof.

    The latter option was chosen because the low roof and roof beam would have blocked the view from the dining area. Did we say that the house is in Bozeman, MT, where the view is worth viewing?

    Work from the view back, not from the house, out.

    • Calculate the sightline clearance height, about 6 feet, 2 inches, in this case.
    • Determine the beam size: 8 inches in this case.
    • Choose a roof pitch and roof structure

    This places the new roof on top of the existing roof. The next question is what to do with the existing eave under the new roof: kick it or keep it?

    To tie the design together, Peter chose to cut the rafter tails off the extend the exterior wall up to the underside of the new roof. As it turned out, the existing roof structure is a truss system, but they were able to contact the original truss manufacturer to verify that cutting the tails off would not jeopardize the structural integrity of the trusses.;

    From the we-hope-this-is-obvious desk: Never alter engineered trusses without the approval of a licensed professional engineer. Ever.

    The next design decision: material selection

    Video 2: Construction process

    How Do I Know What Style Roof To Choose

    Take a look at the style of your home. Your patio roof should look like it naturally belongs to your home. You should also consider the direction your patio faces and the climate where you live. This will help you choose a roof that will shade the right amount of sun and protect you from the rain and other elements.

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    Dont Spend All Your Money On One Cryptocurrency

    Perhaps the most important cryptocurrency tip we can impart is not to spend all your money on a single cryptocurrency. By nature, cryptocurrencies are incredibly volatile. This means that the digital currency could be trading impressively well one day, only to crash the next day or only a few hours later. There have been instances in the past where people have lost their entire life savings during a cryptocurrency crash.;

    You want to try to avoid this happening to you at all costs, which is why its better to split up your investments and buy a variety of different cryptocurrencies. Do your research and choose three cryptocurrencies that you believe are offering the most stability and buy them. Splitting up your investments could maximize your returns or ensure you dont lose too much.;

    How Do I Cover An Old Concrete Patio

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

    An old concrete patio can be the most boring part of an exciting backyard. You dont have to live with that plain concrete patio, though. A little creativity and a liberal helping of elbow grease, and you can breathe new life into that old patio.

    Cover an old concrete patio with a wood or composite deck to bring a warm, organic look to the backyard. Build the new deck with wood or composite decking and attach the deck directly to the concrete patio.

    There are several considerations regarding the kind of deck you build over your concrete patio, as well as a few other options for patio covering. Keep reading to pick up some tips and ideas.

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    Louvered Patio Roof Ideas

    A louvered patio roof is similar to a pergola. Both have posts or columns that support a frame. Then there are wooden beams that are evenly spaced over the frame to create the roof. The difference comes in with the type and installation of the beams. Pergolas are thicker, mounted on the shorter width, and do not move. Louvered patio roofs have thinner planks that are closer together to create the roof. You can then rotate the beams from fully closed to fully open. This allows you to adjust the amount and angle of the light.

    Traditionally, louvered roofs were made of wood and have a manual method for opening and closing them. But modern innovation and technology have made these roofs quite advanced. You now have the option of wood, metal, or vinyl for your roof. You can also have your roof motorized to make adjusting it easier.

    When choosing your patio roof material, look for one that will complement the style and design of the rest of your home. You should also look for one with the greatest amount of rotation. This will give you the most flexibility in how you adjust your roof.

    While getting a state-of-the-art automated system with an app sounds enticing, this may not be the smartest choice. It doesnt take a complicated system to make your roof function properly, so the more complicated it is, the higher the risk for something to go wrong.

    Concrete Roof Deck Issues

  • Concrete Roof Deck Issues
  • COURSE DESCRIPTION:

    The roofing industry has seen an increase in the number of issues with moisture and concrete roof decks, both new projects and existing. Concrete roof decks has been used for many years, so what has changed over the past few years?

    LEARNING OBJECTIVES:
    • Claims for moisture related problems with roofing systems applied to concrete decks increasing.
    • Roofing systems applied to concrete decks are no more prone to leakage than other deck types.
    • Organic material susceptible to mold and decay with prolonged exposure to RH above 80%.
    • High RH within the roofing system prone to condensation when the outside temperature drops.
    • Reduce design water content up to 20%
    • Most concrete incorporate reducers
    • Reduce, but do not eliminate free water
    CURING AND SEALING COMPOUNDS
    • Curing compounds are used to slow or reduce the evaporation of moisture from the concrete to prevent cracks due to drying shrinkage.
    • Applied immediately after finishing while the surface is damp.
    • Curing compounds may affect adhesion of products to the concrete.
    • Sealers are applied after the concrete is cured to protect concrete from exposure to external constraints.;
    • Sealers will allow moisture vapor from the concrete to vent outwards.

    In summary curatives will retard the movement of water while sealers will protect the absorption of liquids. Both cases adhesion may be affected. Neither will prevent moisture migration from the concrete roof in the roof assembly.

    VAPOR RETARDERS

    Also Check: How To Install A Pergola On A Paver Patio


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