House and Home

Most Common Ways to Attach A Patio Roof to An Existing House

It’s recommended to build a patio roof along with the patio or the whole house. However, a lot of people decide to add this element later on, which is alright. There are several ways to install it easily. You can choose to call a professional for help or attempt to do it yourself according to the steps we offer below.

Your patio will look much better after you learn how to attach a patio roof to an existing house and do it properly. Choose materials wisely and make sure they are of high quality. And if there’s an issue, you can always turn to specialists.

While you’re out to attach a patio roof to your existing house you have to be patient since the process may involve woodworks that will take a while. It’s also important to have proper tools to be used during the process and tools required to attach the patio roof. Before starting the project, collect essential tools including nails, nailer, rafters, planks, utility knife and roofing shingles etc. Having all these things in place before starting the project will make things easier to move and accomplish faster.  

Another important thing to check for is if it’s possible to build a roof directly on the slab. Consult your local authorities and ask for if the local regulations permit you to do so. Make sure that the concrete base of your house is sustainable and thick enough to tolerate the weight of the roof.  

Now measure the sightline clearance height of your house and find out the number of beams and rafters are required to attach a patio roof. Now measure the beams correctly. These beams act as the base of your patio. Find below the details about the steps you should follow to attach a patio roof to an existing house. 

Things You Will Need to Attach a Patio Roof

First of all, let’s see if you have everything for the job:

  • Rafters;
  • Planks;
  • Wooden beams;
  • Screwdriver and some lag bolts;
  • Shingles;
  • Nails and a nail gun;
  • Ledger;
  • Utility knife;
  • OSB;
  • Roofing felt (black).

If you have all of these, proceed to attach the roof, step by step.

Step-by-Step on Attaching a Patio Roof to the Existing House

Do every carefully and meticulously for the best result:

  1. Find out the sightline clearance, starting from the existing roof to the house, not vice versa;
  2. This measurement will show you the size of the beams you will need for the installation;
  3. Think about the suitable form of the roof and its pitch if you haven’t already’
  4. You will attach the new roof on top of the old one a little bit, so it might be wise to remove the eave. If you want to leave it, it’s OK, but in the other case, make sure you don’t damage the existing roof;
  5. Look at your design for the patio roof (you may draw it for a better reference), and see how many details like rafters, beams, etc. you will require;
  6. Make sure you stain every wooden detail for weather protection;
  7. Take some lag bolts and a screwdriver and secure the post bases for the future roof. Make sure they sit deep and steady;
  8. For the rafters to sit properly, cut one of the sides of your beam;
  9. Attach the beam with some nails and a nail gun;
  10. Cut the outer rafters for better positioning on your house roofing;
  11. Attach the rafters you’ve just cut and install a beam to the edge of the current house roofing;
  12. Continue to attach the rafters, cutting the parts that interfere;
  13. After you finish the installation, the roof forming begins; install the planks across the construction you’ve made and create the roof;
  14. If you have a different design than your house roof, proceed to install whatever coverage you choose. If you want to match the shingles with those on your current house roof, put a layer of black felt and an OSB layer on top for insulation;
  15. Attach the shingles.

That’s it! Make sure you have enough nails and log bolts, and check every element for secure attachment. Your roof has to be sturdy and durable to last for years without damage and sagging.

Other Options for Installing a Patio Roof

There are more ways to attach a patio roof to an existing house. You can use any of them if you find it easier or more fun:

  • Making the roof higher. Removing the gutter and placing the new roof’s back channel a bit higher can be a great design decision. You can also install risers if there are specific height wishes. This method allows for raising the roof up to 2 feet.
  • Letting the air in. Sometimes, patio roofs restrict airflow. To eliminate the problem and still have a shield from the rain, you can install some patio sheeting about 30cm above the roof. This is a great idea if you have a patio that’s closed from all sides.

There are many more ways, so let your imagination switch on!

Choose any way you find the most suitable for your house. An addition such as a patio roof will create a great ensemble and protect you from direct sun rays or rain while you’re relaxing on the patio. Making the new roof identical to the existing one will add style to your home and make it wholesome!