Louvered Roof Pergolas

Want to spend more time relaxing or entertaining outdoors but don’t have a shady space that makes it comfortable or practical? Add a pergola to a deck, patio, porch or balcony, put a FLEXfence louver roof on top, and transform a sun-soaked space from a sweltering sauna into an open-air oasis in a snap.

Get Climate Control at Your Fingertips With a Louver Roof

Pergolas constructed solely with parallel rafters or beams on top create some climate control, but a louvered roof pergola packs an even bigger punch when it comes to managing the conditions below by allowing you to decide whether to let a little or a lot of sun shine through.

Design a Louver Roof That Lets Your Personality Show Through

Check out the ideas our customers have cooked up for their louvered roof pergolas using our FLEXfence Louver System hardware kits.

From louvered roof pergolas strung with lights or sporting painted slats to ones that vary the layout of overhead louver sections to create a modern checkerboard design – you’re bound to find inspiration for your own project.

Choosing Materials for Your Louvered Roof Pergola Project

Cedar or Redwood? Which will it be?
The wood you choose for your louvered pergola project will depend on a variety of factors, including:

The materials already in place

If you’re adding a louver roof on top of or between the beams of a pergola that’s already there, it’s probably a good idea to stick with the same type of wood for your louver roof to create continuity in terms of colour and grain.

The level of durability you want and the price you're willing to pay for it

Both Redwood and Cedar softwoods are popular options for outdoor building projects. While Redwood’s density makes for a more durable type of timber, the extra cost compared to Cedar could be a dealbreaker for your budget. Both kinds of wood tend not to warp and are naturally rot- and insect-resistant; ultimately, the choice is up to you.

The level of durability you want and the price you're willing to pay for it

Because it’s grown in the United States, Redwood may not be as available as Cedar at the supply stores serving the Canadian region where you live. Ask your contractor or an experienced sales consultant at your local hardware or lumber supply centre for information about material availability before you plan your project.

Deciding Between DIY or a Contractor-Installed Louver Roof

If you’re confident about your construction skills, you can use our FLEXfence Louver System hardware kits to create a louvered roof pergola that’s customized for your home. You’ll find helpful video tutorials and downloadable plans for both flat and gabled louvered roof pergolas in the DIY section of our site.

If you’d rather leave the design and construction to a professional, you can direct your architect and contractor to the Dimension Guide and Calculator tools on our website, so they can better design and estimate the materials you’ll need and price out your work accordingly. They can also view our FLEXfence line of recommended accessories for roof and post brackets and braces.

Where to Buy

Ready to buy your FLEXfence Louver System hardware kits and build your new louver roof? You’ll find a selection of retailers and regional outlets that stock our FLEXfence Louver System hardware kits in Canada (by province) and the USA (by state) on our Where to Buy page, but you can also view a list of nearby suppliers by simply entering your city and country in our location tool.

FAQs About Louvered Roof Pergolas

Does constructing a pergola with a louver roof require a building permit?

Permitting processes vary by municipality across both Canada and the USA.

To find out if your project will require a permit, it’s best to visit the Building Permit Department of your local City Hall or research the process on their website WELL IN ADVANCE of your anticipated project start date.

If you require a permit, you may need to do a property survey, collect and submit architectural plans, provide a tree inventory or more, plus pay the necessary fees. Once submitted, your permit application could take four to six weeks to be reviewed and approved.

If you decide to skip getting a required permit, you risk:

  • A fine that’s often double the original permit fee
  • Stoppage of all work while your new permit application is processed
  • The possibility of having to disassemble and remove all work that was done prior to obtaining the new permit as part of the penalty for non-compliance.

If you didn’t construct the deck, porch, balcony or pergola you want to add a louver roof to, don’t assume the previous structure has a permit – or even if it did – that it’s up to date with current municipal zoning, bylaw and building code requirements.

Lastly, even if a permit isn’t required for your louvered pergola roof, ensure you or your contractor comply with all municipal zoning, bylaws and building codes.

When constructing my louver roof, what is the recommended max span for the slats?

We recommend shorter spans to help prevent sagging. Spans greater than 4′ are NOT recommended. The wood species also affects the wood span. Pressure-treated (PT) lumber has a tendency to warp and/or twist when wet, whereas Cedar and Redwood are more stable. PT spans greater than 4′ are NOT recommended.

Can FLEXfence Louver System hardware kits be used with composite boards?

Composite boards are NOT recommended for overhang applications. Because of the load, they will sag over time, which could affect your ability to open and close individual portions of your louvered roof.

Can I paint various parts of the FLEXfence Louver System?

YES! But you’ll need to use plastic-compatible paint.

Has the FLEXfence Louver System been performance tested?

YES! FLEXfence has been independently tested for quality control. We post product test results for snow loads and wind on our website, and if you scroll down to just below these results, you’ll find information about our manufacturer’s warranty as well.

We select only the highest-grade materials and adhere to manufacturing best practices to ensure our FLEXfence Louver System hardware kits are strong and durable.