Porch Roof – How to build a porch roof?

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A porch is a covered area next to entrance of house and it usually have separate roof. A porch in front of entrance of house have large benefits especially when we have a mobile home. We can shift a home to a beautiful place and sit in porch and can enjoy beautiful scenery in the evening or early morning.

How to install a porch roof? A porch in mobile house is a good way to add some extra sitting space. This room can be used as an enclosed porch, sun room and a place to relax and enjoy the beautiful view.

But if we do not have a porch roof then we cannot enjoy beautiful scenes due to interruption of rain, sunrays and other things that might not give a good view. That is the reason why porch roof is so important.

If someone wants to add porch roof with his mobile home, then he can do it correctly and by himself if he has some knowledge of carpentry with some experience and skills. Therefore, it is necessary to check on the entire procedure of porch roof construction to make it sure that he can do it everything properly by himself.

Important factors for installing a porch roof

There are some factors which should be consider before installing a porch on mobile home.

  • The porch should be of enough height from ground surface. So, in case if there are any flood like situation or high waves in streams or river it will not cause any damage to a structure. Also, the high porch remains protected from termites and pests.
  • The porch area should be strong enough to take the load of roof without sagging or causing failure under the post or column. A metal rods and plates can also be used. This can give additional strength due to material property that wood alone won’t have.
  • Windows are not recommended on porch roof in mobile home. The reason is if in case of any accident someone who is taking rest beneath the roof will be at risk of casualties. But if the requirement of window in porch roof is compulsory then it should make sure that windows are made of safety glass or Plexiglas so that no one face any injury due to breaking of glass accidently.
  • The porch roof should be installed in such a way that porch roof and home roof are connected without any gap between them. This will help in preventing rain water from getting in and causing damage and it also make sure that ceiling does not get damaged by falling debris or leaves.

Also Read: What is a Ballasted Roof System?Basic Benefits

Easy Steps for installing porch roof

The steps which should be followed for installing porch roof are given below.

Step No. 1-Checking of building codes of that area

Before starting a porch roof installation verification of local building codes is necessary. Different areas have different construction rules and regulations according to their climate, location and region. Before starting any construction, authorization is sometimes required. If there is need in this case too then make sure that authorization from administration is obtained before starting a porch roof.

A blueprint should be made for the roof which we want to construct, and all the dimensions will be written on it. Then all the required material for roof should be calculated. After calculations material for installation and all the required tools should be purchased from market. This will make the process of designing much easier.

Also Read: Roof Vent leak during heavy rain – Why it happens? Here’s how to fix

Step No. 2-Examination of structure of home and roof before installation

Plan and design your porch roof. Before you start building, it’s important to have a clear idea of what you want your porch roof to look like. Sketch out your design, including the size, shape, and pitch of the roof, as well as any additional features such as skylights or ventilation.

Before installing a porch roof, it is necessary to check the present condition of home roof because some of the load will be taken by home roof and remaining load will be transferred to ground through posts or columns. The condition of whole structure should be observed carefully to prevent any future damage. If the condition of structure is not good enough for porch roof, then first renovation and maintenance should be done. After that installation for porch roof can be started. This step is most important and should not be missed. Make sure to thoroughly assess home and existing roof.

Step No. 3 – Checking Building Permits

Obtain any necessary building permits. Depending on your location, you may need to obtain a building permit before starting your porch roof project. Contact your local building department to find out what requirements apply to your area.

Step No. 4 – Gather Materials and Supplies

Gather your materials and tools. You’ll need a variety of materials and tools to build your porch roof, including:

  • Lumber: You’ll need dimensional lumber for the rafters, as well as for the header and any other structural elements.
  • Roofing materials: Choose a roofing material that’s appropriate for your climate and compatible with your home’s existing roof. Options include asphalt shingles, metal roofing, or rubber roofing.
  • Fasteners: You’ll need nails, screws, and other fasteners to hold everything together.
  • Tools: You’ll need a variety of hand tools, such as a hammer, drill, saw, and level, as well as some power tools, such as a circular saw and miter saw.

Step No. 2-Checking the level of Porch and Mark Locations.

Then check the level of porch it is even or not. For the installation of sturdy porch roof, the level of porch must be uniform. If it is not corrected before installation, then it can endanger the entire project.

Measure and mark out the location of the porch roof. Use a tape measure to mark out the exact location of the roof on your porch, including the width and length of the roof. Use a level to ensure that the roof will be level when it’s completed.

Step No. 5-Construction of Supporting pillars

The porch roof transfers some of its load to an existing roof and the remaining load should be transferred to ground through columns or posts. Without supporting column or posts it is very difficult to build porch roof. A large amount of load is transferred to ground through these posts. Therefore, the posts or columns should be of good material which can take the load of roof and transfer the load to a ground safely without failure.

Step No. 6-Put the valley board in Place

Porch roof can be installed in different designs. Depending upon the design the requirement of valley boards is decided. In order to avoid any leaks valley boards should be connected to current roof by roofing cement. A roofing cement is different from ordinary cement, and it is exclusively used for roofing.

Step No. 7-Put the rafter Boards

A rafter board is wooden member which provide a support to porch roof covering. It is connected to a ridge board on one side and connected to a plate and supporting pillars on other side with suitable spacing so that uniform distribution of load takes place.

Also read: Overlapping metal roof lengthwise

Step No. 8-Protect the roof with plywood and shingle coverings

Now full roof frame has been installed. Only covering of porch roof is left. The material for covering porch roof is Plywood sheet and shingles layer by layer.

For attractive appearance first cover the roof with half inch thick plywood, then put shingles to a sheathed roof.

Further Read: Colored Roof shingles – Roof shingles colors most popular

That’s it! With a little planning and some basic carpentry skills, you can build a functional and attractive porch roof. Good luck with your project!

Do’s and Don’ts of building a porch roof

As a roofer with many years of experience, I’ve built my fair share of porch roofs. In my experience, the key to a successful porch roof project is careful planning and attention to detail. Here are a few things I’ve learned along the way:

  • Start by designing your porch roof to ensure that it will be functional, attractive, and in keeping with the style of your home. Pay particular attention to the size, shape, and pitch of the roof, as well as any additional features such as skylights or ventilation.
  • Gather your materials and tools before you start building. Make sure you have everything you need, including dimensional lumber, roofing materials, fasteners, and a variety of hand and power tools.
  • Follow the manufacturer’s instructions for installing your chosen roofing material. Different roofing materials have different installation requirements, so it’s important to follow the manufacturer’s recommendations to ensure that your roof is properly installed.
  • Pay attention to safety considerations. Building a porch roof can involve working at heights, so it’s important to take precautions such as wearing a hard hat, using fall protection equipment, and having someone to assist you.
  • Don’t rush the project. Building a porch roof is a complex process that requires patience and attention to detail. Take your time, and be sure to double-check your work as you go to ensure that everything is properly aligned and securely fastened.

Overall, building a porch roof is a rewarding DIY project that can add value and functionality to your home. With a little planning and some basic carpentry skills, you can create a functional and attractive addition to your home.


  1. How much does it cost to build a porch roof?

The cost of building a porch roof can vary widely depending on a number of factors, including the size of the roof, the materials used, and the complexity of the design. In general, you can expect to pay anywhere from a few hundred dollars for a basic porch roof to several thousand dollars for a more elaborate design.

  1. Can I build a porch roof myself?

If you have some basic carpentry skills and the right tools, you may be able to build a porch roof yourself. However, it’s important to keep in mind that building a porch roof can be a complex project that requires careful planning and attention to detail. If you’re not confident in your abilities, it may be a good idea to hire a professional contractor.

  1. What materials do I need to build a porch roof?

To build a porch roof, you’ll need a variety of materials, including dimensional lumber for the rafters, a header, and any other structural elements, as well as roofing materials such as asphalt shingles, metal roofing, or rubber roofing. You’ll also need fasteners like nails and screws, as well as a range of tools, including a hammer, drill, saw, and level.

  1. How long does it take to build a porch roof?

The amount of time it takes to build a porch roof will depend on the size and complexity of the project, as well as your level of experience. In general, you can expect it to take several days or even a week or more to complete a porch roof.

  1. Do I need a building permit to build a porch roof?

In many cases, you’ll need to obtain a building permit before you can start building a porch roof. Contact your local building department to find out what requirements apply in your area.

  1. What are some common mistakes to avoid when building a porch roof?

Some common mistakes to avoid when building a porch roof include:

  • Not obtaining the necessary building permits
  • Failing to properly plan and design the roof
  • Using poor-quality or inappropriate materials
  • Not following the manufacturer’s instructions for installing roofing materials
  • Not paying attention to safety considerations, such as wearing protective gear and working at a safe height.

David Noah

Howdy, I’m Noah Although I don't like all this internet thing but I love sharing my stories on the roof here. With my years of experience in number of roofing contractors across various boroughs of Florida, I'm here to answer all your roofing questions. I'm really honored to have you on my website browsing through our articles and hope you'll enjoy your visit and find my content helpful in every situation. You can contact me right away to discuss any of your roofing problem.

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