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How To Build A Tin Roof

What Is The Purlin Spacing For 29 Gauge Metal Roofing

How To Build A Shed – Part 4 Installing Sheet Metal Roof

When using 29 gauge metal roofing, your purlins should be 1.2 meters apart when using 0.7mm roofing sheets and no more than one meter apart when using 0.5mm roofing sheets. Note that you can have more or fewer purlins, depending on other factors. However, its a good place to start when working on purlin spacing.

Metal Surfaces Reflect Heat

Metal reflects radiant heat from the sun, minimizing midday heat gain. This reflective characteristic means you save energy needed for air conditioning during the day. In fact, federal rebates are offered for metal roofing that has appropriate pigmented coatings that meet EnergyStar requirements. You can get a 10% tax credit up to $500 .

Regarding the insulation value of metal roofing in both heat and cold: Though the material itself is low in insulation R-value, metal roofing can be applied over foam insulation that has very high R-values. In addition, many systems utilize a dead-air space between the metal surface and roof deck beneath it to minimize heat transfer, increasing energy efficiency.

Install Your Metal Panels Or Shingles

Now you can start installing the metal panels or shingles. To do this, first attach galvanized steel frame strips to your roofs edge for stability and then use nails, screws, or staples to secure them in place before moving onto the next row of material.

If youre installing metal shingles, then youll want to install screw-on brackets. These help keep the roofs shape secure and also attach any pre-cut lengths that might be available .

Recommended Reading: Extending A Roof Overhang

What Is Metal Roofing

Metal roofing, as the name suggests are made up of metals like, aluminum, copper, steel, tin, and zinc. They come in the form of corrugated metals, slate roofs, or tile roofs.

Having a metal sheet up on the roof can prove advantageous if you are looking for a long term investment because of its longer life span, sturdiness, low maintenance, and great return on investment. It is a one time investment which can last up to 50-80 years depending upon the metal type.

How To Arrange Purlins When Roofing

Metal Roofing On the Rise

Traditionally, roofing purlins are arranged depending on the roof slope, horizontal to the slope.

You need to make sure that your purlins are spaced evenly to ensure they support the trusses. Additionally, avoid placing purlins close to each other as this encourages bending that may distort the shape of the roof.

One way to achieve this is to place the purlins at the nodes of the trusses rather than on the members themselves for an even arrangement and a straight roof.

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How To Square A Metal Roof

Fortunately, theres an easy way to do this. The 3, 4, 5 triangle method will allow you to quickly snap a true squared reference line on your metal roof. This will ensure that all of your metal roofing panels are installed straight.

At Western States Metal Roofing, we manufacture the metal roofing, but dont install the metal panels. However, we know that you still need help with the installation of your metal panels. Weve been selling metal roofing panels manufacturer direct to homeowners and contractors for over 25 years. Our goal is to make your metal roofing installation as simple and hassle free as possible.

In order to make your roofing installation as painless as possible weve created step by step written instructions and pictures that illustrate each step. Weve even made you an instructional video.

This article is intended to support the video. Follow the instructions within the video and refer back to this article if you need a written copy of the instruction.

What Is A 3 4 5 Triangle

The 3, 4 ,5 triangle is based upon the Pythagorean Theorem. It’s a true right angle triangle that starts out with measurements of 3 out, 4 up, and 5 across. Hence, the name of 3 4 5 triangle.

For larger roofs, the math is simple. Just use any multiple of 3, 4 and 5 to get your answer. For example, doubling the size of your roof would brings you values of 6 over, 8 up, and 10 across. Quadrupling it would be 12, 16, 20.

Also Check: Metal Roof Extension

The Difference Between Metal Shingles & Metal Standing Seam Roofing

Understanding how metal shingles and standing seam roofs are different is fairly simple on a basic level standing seam metal roofing material comes in continuous lengths and has a built-in mechanism that allows for expansion and contraction during weather changes, and the fasteners for the individual roofing panels are built-in, while with metal shingles they are nailed on.

Metal standing seam roofing is normally more complicated to install and requires more specialized labor, while metal shingles of any kind steel, aluminum, and other options can be less complex to install.

Of course, that all depends on your individual property, and the decision process can be made easier with some advice from an expert metal roofing contractor.

You should always consult your metal roofing contractor or roofing company that you are working with for advice as to the ideal type of metal roof for your property, regional climate, and budget.

Attaching The Porch Roof To The House

Metal Roof Installation for a Shed

One of the most critical components of the porch roof is its ledger board. The ledger board takes advantage of the house’s strength to support the highest edge of the porch roof. The ledger board supports half of the porch roof’s weight. Metal drip flashing installed between the porch roof and the house siding prevents water leakage.

A ledger board is any type of dimensional lumber installed horizontally on a structure to provide partial support for another, smaller structure, such as a porch roof, patio roof, or deck.

Read Also: How Do I Know If My Roof Is Leaking

Selecting Materials To Build A Patio Cover

While looks are important, you want to make sure that the materials fit the structure. Since my patio cover was going to have a slight slope, shingles were out. A tar roof would work, but it would be a heavy smell like a BP oil spill. I decided on corrugated metal roofing because its resistant to high winds, is lightweight, and is structurally sound.

Using corrugated metal also allows me to reduce the degree of slope, or roof pitch needed to a mere 10 percent, or a 1-to-10 pitch. This meant the patio cover could start at the edge of the houses roof at a height of eight feet and slope down to seven feet, leaving a clearance of more than six and a half feet between the lowest part of the frame’s headers and the ground at its outer edge.

Lightweight Design Relieves Pressure On Homes Structure

If your home is older or isnt built to withstand such heavy weight on the roof, it can be detrimental to your homes integrity and foundation. Luckily, metal roofs are incredibly lightweight compared to other roofing materials. For example, some roofing materials such as slate, clay, or even premium asphalt shingles can weigh 2 to 6 pounds per square foot, while metal roofing might weigh around 1.5 lbs.

Also Check: Rv Vinyl Roof Repair

Tips For Purchasing Materials

  • Be flexible. I had originally planned on using 4×4 beams and joists, but local codes wouldnt allow for them, so I used 10×2″ headers and 6×2″ joists, which worked out just fine. Also, be prepared to modify your plan at the store when youre getting your materials, as doing so can save you money. For instance, I chose drywall screws instead of nails because, for some reason, they were less expensive, and they wont try to work themselves back out after a few years. Another substitution I made was choosing three- and four-inch deck screws instead of framing nails. Although more costly, they hold much better than framing nails outdoors.
  • Shop around. Shopping around for the best prices for materials was absolutely necessary. In the same town, in an area of fewer than 10 miles, the difference in prices was enormous. Total material costs ranged from $2,200 down to $800.
  • Beware the store associates. Some are aggressive and want to push customers into an insane buying frenzy, bringing up a storm of confusing nonsense that somehow equates spending more to saving more. The lumber store I bought from had an associate who simply made sure I bought the correct materials for the job by looking over my plan and suggesting shorter screws for the joist hangars and a lower grade of lumber for the areas of the patio cover that would not be exposed to the weather. The associate also arranged for delivery, which cost $25.
  • Can You Install Metal Roof Over Shingles


    Yes, you can install a metal roof over shingles. The shingles will act as underlayment for your metal roof and provide a solid foundation provided they are not completely disintegrating.

    Some will opt to place battens and underlayment over existing roof shingles. The reason for this is to ensure proper connection of the roofing panels to the roof. Old asphalt shingles may not provide enough holding strength for part of a roof screw, so screwing battens to roof rafters or trusses on top of shingles ensures the integrity of the metal roof.

    Also Check: How Much Does Shingle Roof Cost

    Metal Roofing Is Becoming More Popular Among Homeowners Get Answers About Your Metal Roof And How It Affects Indoor Temperatures During The Summer

    With the heat of summer in full swing, homeowners may wonder how their metal roof affects the temperature inside. Those who plan to install a metal roof should pause to consider how metal compares to shingles when battling the elements of summer.

    Choosing a roofing material that protects your home from seasonal elements, including the hot summer sun, is always a primary concern when roof shopping. There is nothing more important for keeping a home comfortable than the type of roof over your head.

    Will a Metal Roof Heat Up My Home?

    A common misconception is that metal roofs become hot in the summer and create an overheated living space because metal quickly heats up to the touch. However, this is a myth. Metal roofs do not make a house hotter than any other kind of roofing material. In fact, they can actually help to keep the home cooler during the summer months.

    Metal roofing is one of the most energy efficient materials available to homeowners and can help lower the energy used to cool off your house. Instead of absorbing all the suns heat, metal works to keep the hot air out, which in turn reduces how much air conditioning you need.

    Therefore, if your metal roof is properly installed, you should not have to worry about it causing unnecessary heat in your home.

    Cooling Factors of Metal Roofing

    Building A Basic Gable Roof

  • 1Understand the steps involved. Once youve chosen your style, design, and materials, its time to actually build your roof. The process can be broken down into four main steps, and they are:
  • Framing: this is the construction and installation of the roof frame, which can be done with premade trusses.
  • Sheathing: this is the layer of material that goes on top of the frame and provides the surface of the roof.
  • Underlayment installation: this is a protective layer that covers the sheathing. This step may also include the installation of an ice barrier on top of the underlayment.
  • Roof cover installation: this layer goes on top of the underlayment and protects the roof from the elements.
  • 2Mount the trusses. To complete this step, the wall frames of the building must already be level, plumb, and square. Use ladders or scaffolding if you are building the roof onto a building that is still a frame. Hoist the trusses onto the roof. This can be done either with many pairs of hands, or with the assistance of a crane.
  • Trusses are often spaced 12, 16, or 24 inches apart.XResearch source Your spacing will depend on building codes and how much weight the roof will have to hold.
  • Without a crane, it will be easiest to hoist the trusses up onto the roof lying flat, and once there they can be raised into position.
  • Once all the trusses are installed, install permanent bracing as per the truss manufacturers instructions.XResearch source
  • Repeat the same process for the other side of the roof.
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    How To Install A Tin Roof On An Outbuilding

    Tin sheets are an affordable alternative to adding shingles to the roof of your outbuilding, and they are much faster to lay than shingles. The tin is a durable roofing option, often lasting for decades. The tin roof brings a rustic feel to the look of your outbuilding, adding an interesting design element to your yard. Tin roofs are typically corrugated, and the dips and swells of the tin come in different widths and shapes to help meet your needs and design ideas.


    Put on heavy gloves and safety goggles.


    Measure the length and width of your roof, measuring both sides if your outbuilding’s roof has a peak. Cut roofing felt to fit with a utility knife, then lay the felt horizontally along the plywood deck of the roof the tin will lie vertically, so the horizontal alignment creates different seam lines and helps waterproof the roof. Attach the felt with roofing staples and a staple gun or a hammer and roofing nails. Overlap each layer by at least 4 inches.


    Add at least 4 inches to each side of your roof measurement to add an overhang with your tin panels. You may want a slightly larger overhang on one side, such as where the door is located, to help deflect rainwater.



    Lay another piece of tin beside the first piece along the bottom edge of the roof. Overlap the first piece of tin by at least one rounded corrugation. Drive screws on the overlapped edge and bottom of the second piece.







    Eht Explores Some Basic Roof Framing Techniques From Layout To Installation

    How to install a tin roof

    Roof framing is one of those carpenter skills that appears quite complicated, and indeed, some roof designs are difficult. Roofs are basically five types: shed, gable, hip, gambrel and mansard. Another common design in the Northeast is the saltbox, which is a gable roof with one longer side. These days cut-ups, or roofs with a lot of valleys, dormers and other features, are increasingly popular. In many cases with purchased house plans, the details of the roof construction, including rafter design, are included. Pre-constructed trusses have also become increasingly popular. They are constructed at a factory to match your building and delivered on site. They do, however, require extra manpower and lifting equipment to install in place. You can also build your own trusses if you have the equipment, or can rent the equipment to install them. Piece-by-piece rafter/roof construction, however, is still the more common construction method for many buildings. Simple roofs, such as a shed or the common gable, are fairly easy to construct, even without plans, if you understand the basics and a little geometry.

    Roofs are framed in five basic designs: shed, gable, hip, gambrel and mansard. The gable is the most common, and it can be complicated with multiple roof lines, including valleys and dormers.

    Also Check: Corrugated Roofing Overhang

    What Are The Many Benefits Of Metal Roofing

    Metal roofs are one of the strongest, most durable, and longest-lasting roofing materials you can use for both residential and commercial roofing. They have many benefits that put them leaps and bounds beyond any other roofing material. Aside from slate and clay, metal roofs can last for a long time without the hefty price tag, thus, are a growing choice for homeowners, today. Benefits of a metal roof include:

    Where The Patio Cover Attaches To The Roof

    More detail about joining the patio cover to the existing roof.

    Jed Fisher

    This article is accurate and true to the best of the authors knowledge. Content is for informational or entertainment purposes only and does not substitute for personal counsel or professional advice in business, financial, legal, or technical matters.

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    How To Cut Tin Roofing With Three Best Methods

    Tin roofing is considered to be one of the most versatile and lightweight materials for steel roofing. The edge and the middle parts of each sheet are usually made of small ridges. The ridges are there to make sure that the joints are tightly sealed.

    However, not all of the sheets match onto your roof, so you have to cut them. The easiest way to cut tin roofing is actually depending on what sort of cut you want to make and how experienced you are dealing with roofing materials.

  • How to Cut Corrugated Tin Roofing
  • Installing A Metal Roofs

    How to Install a Tin Roof

    a. Materials and Tools Required for Installing Metal Roofing

    • A stepladder and an extension ladder
    • A measuring tape
    • A chalk line, including lots of orange chalk.
    • A dependable electric drill along with three types of bits: a regular bit a 5/16-inch bit for a screw head and a ¼-inch screw head bit.
    • Screws for the metal roofing: 5/16-inch lap screws made of metal and ¼-inch screws made of wood.
    • A heavy-duty hammer and half a pound of 1 ¼ -inch sized roofing nails.
    • About 10 pounds of 3-inch long head screws
    • Snips, used for cutting metal. These look like large scissors and have a straight edge. They are available at regular hardware stores.
    • A nail bag made of cloth that you can wear in which you can put the screws while working.

    b. Process in installing a Metal RoofMeasure the Roof Height:There are two basic kinds of metal roofing that are suitable for installing on residential homes:Remove old shingles and prepare a new base:Install the roofing sheet:Installing the metal trim:Closures:

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