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HomeInstallHow To Install A Cupola On A Metal Roof

How To Install A Cupola On A Metal Roof

Can You Put A Cupola On A Metal Roof


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Simply so, how do you attach a cupola to a metal roof?


  • Determine Your Roof Pitch – Screw two boards together so they pivot.
  • Subsequently, question is, how much does it cost to install a cupola? Cost: Regularly-priced cupolas usually start at about $700, and increase depending on size and style. Installation: We recommend purchasing professional installation for your cupola, as proper setup will ensure a product that looks great for many years.

    Correspondingly, what is the point of a cupola?

    Cupolas were originally designed to add natural light and ventilation to the area under a roof. They sit on the ridge of a roof and can be found in many shapes, including square, round, and octagonal. On barns, they’re meant to allow a continuous flow of air into the hayloft, helping to dry the hay.

    How do you light up a cupola?

    Take one 120V “keyless” lamp base with a 50W PAR20 Halogen lamp in it. mount it on the bottom of the inside of the cupola shining up into the hat of the cupola. The light bounces around and radiates out softly and no visible glare.

    Attach The Vent Housing To The Saddle

    The barn cupola isn’t terribly heavy: The three parts weigh about 80 lbs. altogether. But they are large and clumsy. If you’re not comfortable carrying them up a ladder, rent scaffolding. For a typical garage, you’ll need only one section of scaffolding. For a one-story house, you may need two sections.

    Fasten the vent housing to the saddle by driving 3-in. screws through the sill into the 2×2 rails inside the saddle. Be sure the housing is centered on the saddle before you drive any screws.

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  • Recommended Reading: How To Install Snow Stops On Metal Roof

    First Decide Where The Cupola Will Go

    For the most part, cupolas get placed squarely in the center of a roof ridge, although thats definitely not a hard-and-fast rule. Its not uncommon to see it placed in an asymmetrical arrangement, either, particularly if you have a door to one side of your home. Additionally, some homeowners will even go for two or three cupolasalthough theyll need to be properly proportioned across the roof.

    Once you figure it out, its time to climb up on the roof. A word of caution here: it sounds totally obvious, but you should never get up on a roof thats wet or icy. You can walk on your roof, but take it slowly, and use your hands to help keep your balance if you need to.

    Run a tape measurer across the length of the ridge and make a mark in the center, or at whatever point youve decided to the cupola. Divide your cupolas base width in half, and measure that distance out both in front and in back of your first mark. Mark each of these spots.

    Carefully remove the ridge shingles in this area with a utility knife. Make sure not to cut into the sheathing below.

    How To Install A Cupola

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    You will find copies of our cupola installation guide on this page. When purchasing one of our cupolas, you will also receive a copy of our cupola installation guide when your cupola is delivered. If you are unsure of your roof pitch, you can use the roof pitch calculator diagram on this page. If youre still uncertain of your roof pitch, feel free to contact one of our professionals.

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    Screw The Saddle To The Roof

    If your roof is too steep to comfortably walk and stand on, you’ll want to use roof bracket and/or a safety harness. And remember that rooftop safety also includes keeping away from power lines.

    If you don’t want ventilation, simply mount the saddle, without doing anything to your roof. If your shed cupola will be used for ventilation, you’ll have to cut a hole in your roof. The hole should be about 16 in. wide at the ridge and extend 10 to 14 in. down from the ridge, depending on the pitch of your roof.

    You can cut the hole with a circular saw or jigsaw, but be careful to cut only through your roof’s sheathing and not into any of the structural lumber underneath. Cutting through asphalt shingles will ruin a saw blade. So either use an old blade or first cut away the shingles with a utility knife.

    Fasten the saddle to the roof with 2×2 cleats. First, lay a bead of roofing cement on the roof along each sloped side of the saddle. Then fold the four flaps down over the cement . Drive 2-in. screws through the 2x2s into the saddle and 3-in. screws into the roof. Seal the gap at the ridge with roofing cement and caulk around the upper edge of the saddle. But leave the two low edges of the saddle unsealed so any water that gets in can drain out.

    Screw The Sheathing To The Rafters

    Fasten the 3/8-in. plywood to the rafters with 1-1/4 in. screws. Begin at the middle, driving the screws at an angle. There should be a gap between the pieces of sheathing. When the sheathing is done, center the roof on the vent housing and drive four screws up through the soffit into the roof’s base. You can remove the roof later to make it easier to carry. Important: Be sure to cut the roof sheathing so that the grain runs horizontally across each piece. Plywood bends more easily across the grain than with the grain.

    Read Also: How To Replace Asphalt Roof

    How To Install A Cupola And Weathervane

    Here are some tips on how to install a cupola and weathervane. If youre not an experienced carpenter the angles you will need to deal with when installing a cupola can be confusing, to say the least. We will do our best to provide you with the knowledge you need to install a on a pitched roof.

    The first step: a sturdy ladder to begin installing your cupola and weathervane. Theres a great video of how to install a cupola on a pitched roof. All you need are two boards and a screw. Form a pattern by marking the boards, then trace that pattern on the base of your cupola. Easy! Right?

    Get someone to help you install your cupola! You may think its a one-person job, but you will discover a cupola is not only bigger than you may think its also hard to keep your balance when walking on a pitched roof carrying your cupola. Dont attempt it yourself!

    Familiarize yourself with the parts of your cupola before you install it on your pitched roof. There are three main sections the base, the midsection, and the roof.

    As Dad used to say be careful you dont cut twice and still be short! If you followed the video instructions you should have the correct angle of your pitched roof and the cut on your base should be perfect.

    With the help of your neighbor carefully take the base of your cupola up to the top of your roof. As instructed in the video, short 2×4s can be screwed directly onto your pitched roof. The base can then be fastened to the 2×4s.

    How Do I Install A Decorative Cupola On My Roof

    How to install Metal Roofing 3ft panels-ASC Building Products

    Love decorating? Why focus all your attention on your homes interiors? A cupola adds a classic and unique twist to exterior surfaces, making it a loving update that really shows the world just how much you care about your home. Plus, its easy enough for a moderately experienced carpenter to install one, too. Read on for the full details below.

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    Then Find Your Roofs Pitch

    For this next part, youll need to create a hinge tool to measure the angle of your roofs pitchand to help you get it right when you cut your cupolas base to fit. To do this, screw two 24-inch boards together at their ends, keeping the screw loose enough that the boards can be worked back and forth.

    Lay the hinge tool across your roof ridge and adjust the boards until it fits snugly. Screw the two boards together tightly and bring your hinge tool down with you off the roof. Youll use this to find the angle when you cut out your cupola base.

    And Finally Attach And Seal Your Cupola

    Screw the cupola wall against the outside edge of each mounting board. Once its firmly in place, apply silicone sealant against each seamthis will prevent moisture infiltration in your roof. Then, head down off the roof and take in the beauty of your homes new accent piece from the ground!

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    Locate The Cupola Location:

    Measure and mark the center of where the cupola will be installed. If the roof is longer than your tape measure pull two tape measures from opposite ends and determine where the center of the two opposing tapes meet. Measure left and right to determine the outer sides of the cupola. Remove only the roof ridge shines. I cut the center shingle out and then use a nail puller or a flat bar to remove the roofing nails and ridge cap shingles. The goal is to try to remove them in one piece so you can use them later for patching, if needed.

    Cut and remove ONLY the ridge shingles and / or ridge vent up to the outer edge of where the cupola will sit. You may need to use the utility knife to trim the shingles back. Use care not to expose the roof sheathing. If you do you will need to patch this spot with Vycor rubber flashing tape or flashing and shingles to prevent water intrusion.

    Bend Trim Ends Closed

    • Before you install the trim, cut and bend the leading end to wrap it around the corner. Make a series of one-inch cuts with aviation snips at each bend to create tabs. Fold the tabs in with a hand seamer to meet a wall or a corner, or to close a gap created by the trim. Each trim is a different shape, requiring unique cuts and bends.
    • Install the eave trim tight to the fascia and fasten it to the roof deck over the underlayment with one-inch roofing nails. In warmer climates, the eave is attached before the underlayment. In northern Wisconsin, where ice dams are common, we install these atop the underlayment to protect the entire roof from dams.

    Also Check: Where To Buy Metal Roofing In My Area

    Metal Cupola Installation Guide:

    Please read installation guide thoroughly before starting. If base has a factor cutout skip steps 1-3.

    1. Prepare Roof – There is no preparation necessary to your roof if your cupola is to be installed for decoration only. If a ridge vent or cap is present, then remove to fit over cupola flashing. Additional cap flashing may be installed over ridge on the inside of the cupola.

    Prepare Roof – If your cupola will be used for ventilation or accessibility, cut an opening in the roof, that is at least 12″ smaller than the cupola base or 5″ – 6″ smaller than the very inside measurement of the cupola. The sill above the cupola base is typically the smallest inside dimension. For example a 60″ cupola has an inside sill measurement of approx 49″, so the opening in the roof should be no bigger than 44″. Make sure that the main roofing material pertrudes into the cupola, up to the roof opening. Remove roofing & sheathing only. Do not cut ridge or rafters.

    2. Determine Your Roof Pitch – Screw two boards together so they pivot. Straddle the roof with each board as shown, making sure each side is flat against the roof and the center is at the center of the peak. Mark the boards & apply another screw. This becomes your cutting template.

    Cupola Installation Instructions And Tips

    Roof Cupolas are mostly installed for looks, but sometimies, to provide an additional ventilation in your attic.

    The very first step in any cupola installation is determining & purchasing the right size of cupola. Unfortunately, there is no precise rule of thumb that you can follow to determine the size of cupola to install. Some cupola manufactures suggest to use 1″-1′ ratio . Other manufacturers suggest to use 1.5″-1′ ratio. At the end, it’s really up to each individual to come up with the right size of cupola that will look best on their roof. Keep in mind that on long roofs you will need to install 2 or more cupolas instead of one large cupola for best looks. on bottom.

    The second step in any cupola installation is to properly cut out your cupola base. To do this, you must first determine roof angle or make a pattern using two boards .

    First, remove ridge cap where cupola will be installed. Take two 1×4 boards, lay them on edge pushing them tight against your roof and fasten together. Use bottom of this pattern to mark cupola base on two sides. Cut the base with jig saw, circular saw or regular hand saw.

    To prevent any leaks, installation of metal or aluminum flashing is recommended. Remove few extra courses of ridge cap and install flashing on roof ridge, so it’s about 12″longer on each side of cupola.

    Note: If you have aluminum ridge vent, cut out just enough, so cupola fits tight in between.

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    How To Install A Decorative Cupola

    A decorative cupola differs from a functional cupola in that the roofing material and roof sheathing does not need to be cut away to create a vent hole. these types of cupolas should be installed with step flashing to prevent leaks.

  • Jig saw or hand saw
  • Drill with 1/8 pilot bit
  • Drill driver or screw driver
  • 2-1/2 stainless screws and 4 structural screws.
  • Two 24 pieces of pine or strapping and a screw to make a roof angle finder
  • Exterior wood putty or plugs
  • Silicone caulking and caulking gun
  • Touch up paint
  • Roofing nails and roofing caulk
  • 2×4 material for mounting to roof sheathing
  • Cupola and weather vane if applicable
  • Snap A Square Reference Line

    How To Install Corrugated Metal Roofing. 1st Sheet Installation Square Roof Eave/Ridge Overlap
    • A square reference line is important for installing roofing panels evenly. Use the 3-4-5 method to establish a reference line 90 degrees to the eave.
    • First, make a mark along the eave three feet from the corner. At that mark, measure four feet toward the ridge. Then, from the original corner, measure five feet and mark where it intersects the second mark.
    • Snap a line from the first three-foot mark through the intersection of the second and third marks. Since the Getaway roof is larger, I measured to 21 feet, 28 feet and 35 feet to make my square reference line.

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    Build The ‘witch’s Cap’ Roof For The Shed Cupola

    The curved roof is the most time-consuming part of this project. Here are some tips to make the job go smoothly:

    • Use a jigsaw to cut the curved rafters. Don’t worry about making the curves perfect. The roof sheathing will smooth over bumps and dips.
    • The gaps between the pieces of sheathing at the ridges will allow the ridge cap shingles to curve gently over the ridges. If you place the sheathing pieces tightly together, you’ll get a sharp ridge and the shingles will crack when you bend them.
    • Cut full-size shingles into 4-in. wide strips with a utility knife, using a framing square as a guide. Each of the three tabs on a full shingle is about 12 in. wide., so you’ll get nine small shingles from each full shingle.

    How Do You Light A Cupola

    Take one 120V keyless lamp base with a 50W PAR20 Halogen lamp in it. mount it on the bottom of the inside of the cupola shining up into the hat of the cupola. The light bounces around and radiates out softly and no visible glare.

    What is the purpose of a cupola?

    Cupolas were originally designed to add natural light and ventilation to the area under a roof. They sit on the ridge of a roof and can be found in many shapes, including square, round, and octagonal. On barns, theyre meant to allow a continuous flow of air into the hayloft, helping to dry the hay.

    Read Also: Does My Home Warranty Cover Roof Leaks


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