How to mount pole on the roof

7 min read
Last Updated: Jun 16, 2024
BY: Matt Keepnes

Do you need Roof Bars?

You'll need some roof bars to fit these boxes. We recommend you order these directly from your vehicles manufacturer.

Pole mounting on the roof is a great way to add some extra living space to your house. Whether it’s for a patio, sunroom or gazebo, this project can be done by almost anyone with some basic tools and know-how. It’s also a relatively inexpensive option compared to adding another room in your home.

How to Secure a Long Pole on a Roof

  • The best way to secure a long pole on a roof is with brackets. Brackets are typically made out of steel, and they attach to the side of the pole with screws. You'll use lag bolts (long screws) to affix these brackets to your flat-roof surface.
  • Make sure that you mount your bracket as close to the bottom of the pole as possible for maximum strength and stability.
  • When mounting hardware onto your roof, make sure that you have enough space between each hole so that there is no risk of corrosion from water runoff over time.
how to mount a pole on a roof video proof

Roof Poles

Roof poles are used to support antennas and satellite dishes. Roof poles are made of galvanized steel and come in different lengths, diameters and styles. The pole should be placed on a roof that is flat, level and has no obstructions within the area where the antenna will be mounted.

Measure the Width of the House

The first step to installing a flag pole on your roof is to measure the width of your house. The initial dimensions you'll need are:

  • The width of the house, usually measured from corner to corner and including any overhangs or porches
  • The width of the roof, measured horizontally at its widest point
  • The width of your flagpole, which will depend on the size and style of your flagpole bracket. For example, if you're using a square-shaped bracket with mounting points at each corner, it will be wider than one that has only two mounting points in the middle. If you're not sure about how wide yours is (or want more space for windy days), err on the side of caution by choosing something too wide rather than too narrow!

Mark the Roof

To mark the roof, you have a few choices:

  • Chalk line
  • Level
  • Laser level (a laser pointer)
  • Plumb line (a weight and string)
  • Spirit level

Mark the Front of the Brackets

  • Mark the front of the brackets. You'll need to mark both sides so that you have a matching pair.
  • Mark the front of the bracket on the roof. The best way to do this is with a sharpie, but you can use any sort of marker or pen that will make a clear mark.
  • Mark the front of each bracket on your house (if it's visible from where you're standing). If you don't see your house from where you're standing, then just make sure that when someone walks by they can see them facing outwards when mounted in place!
  • Mark each side facing outwards on either side of your pole (or whatever else it may be) where they will be mounted. It's important to note whether something like an antenna mast is perfectly vertical because if it isn't then some things won't mount well into place due to lack space available below them (like most dishes).

Drill Screw Holes in the Brackets

  • Drill a pilot hole through the bracket.
  • Use a drill bit slightly larger than the screw you'll be using to mount your pole. This will help prevent any damage to the brackets, and it will make driving in the screws much easier. Make sure that when you're drilling into your brackets, you're at an angle similar to where the bottom of your pole will sit on top of it; this ensures that when it's all said and done, everything will line up properly!

If you want to get fancy, there are other things that can make this process easier as well--like pre-drilling holes in your roof so that everything goes smoothly from start to finish (and no one gets hurt). However, if you don't have access or time for pre-drilling holes in roofs (or if you just want some practice), then go ahead and skip ahead here:

Put in Lag Bolts

Put the lag bolts in place. You’ll need to make sure you have the right size and type of lag bolt for this step, as well as some sort of wrench or screwdriver to tighten them once they are in place.

Here’s how to do it:

  • Put some brackets on either side of where you want your pole to be mounted on the roof (in our case, we placed one on each side). The brackets not only help support the weight of your mount but also make drilling holes easier.
  • Use a drill bit that is slightly larger than the diameter of your lag bolt shaft (the part that sticks out). Drill into both sides at an angle so that when you put your nut onto it later, it will be straight when fastened back together again without having any wobble or play in it

Attach the Pole to the Brackets

Now that you've added the brackets to your roof, it's time to attach your pole. You'll need a level, plumb line and some roofing nails if you're going to be nailing from inside the attic. If you're using lag bolts, then skip this step and go straight for mounting the bracket onto your roof instead!

Begin by attaching one end of a bracket to each side of your new post, making sure that it is parallel with and perpendicular to that side of your house. Then use lag bolts (or wood screws) at least every 12 inches along each edge of both brackets; these will provide stability and prevent any movement when someone leans on them from below.

Next comes leveling: there should be no more than ¼" difference between any two points across or around its entire surface area—so adjust accordingly until they are all equal!

Caulk Gaps in Bracket Edges and Pole Base

The next step is to caulk the gaps between the pole base and your roof, as well as between each bracket and your roof. I used a caulk gun (like this one), but you can also use caulking tubes if you have them on hand.

Use enough silicone that it oozes out of all sides of the gap between pole base and roof, but not so much that it will run down into your house or onto anything else below!

Mounting a pole on a roof is easy when you know how.

Mounting a pole on a roof is easy when you know how. It’s important to measure the width of the house before you start, so take measurements all around your house and mark the roof with chalk. Mark the front of your brackets so that they line up with where you think they should go, then drill screw holes in them.

Mounting a pole on a roof doesn't have to be difficult or stressful! With these tips from and other DIY experts, you can get your project done in no time—and feel secure knowing your investment will last for years to come!


Now that you've read through this tutorial and know what it takes to mount a pole on your roof, maybe you're ready to get started. Before you do anything else though, make sure that your roof is strong enough for the weight of a long pole on it! If not, then it's best to hire an expert or get advice from someone who knows what they're doing.

Also be sure not to damage any part of your house while mounting this kind of equipment because if there is any kind of damage done during installation then we wouldn't want anyone else getting hurt by accident later down the road when trying out new things around here (especially if those new items include hot tubs/pools).



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Matt Keepnes

Matt Keepnes, travel enthusiast and creator of I share expert tips on car storage solutions for seamless travels, combining personal experiences with practical advice.

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