How do I cover my pergola in the rain?

Covering a pergola is important to protect it from rain and extend its lifetime. There are several options to cover a pergola depending on your budget, the pergola’s size and design, and how much rain your location receives. The most common choices are using a tarp, canopy, retractable awning, or installing a permanent rooftop. You’ll also need to consider factors like ease of installation, durability, and aesthetics when deciding on the best rain cover solution for your pergola.

Why is it important to cover your pergola in the rain?

There are several reasons why it’s important to cover your pergola when it rains:

• Protects against damage – Uncovered wood pergolas can become damaged, warped and weathered from excessive rain exposure. A cover shields the wood from moisture.
• Prevents rot and decay – Water pooling on a pergola accelerates rot, splits and cracks in the wood. Covering it prevents this deterioration.
• Extends its lifetime – A pergola cover protects the integrity of the structure, allowing it to last many more years than if left uncovered.
• Keeps furniture dry – Outdoor furniture under a covered pergola stays dry, preventing damage and mold growth.
• Allows use in bad weather – A covered pergola can still be enjoyed even when it’s raining.
• Provides shade – Some pergola cover options like canopies also provide shade and UV protection.

Properly covering your pergola is one of the best ways to protect your investment and get the most out of the structure.

What are the options for covering a pergola?

There are several options to cover your pergola from rain, either permanently or temporarily:

Tarps

A heavy duty tarp is an inexpensive and quick option to cover a pergola. Tarps are made of durable polyethylene or vinyl-coated polyester fabric. They can be secured using bungee cords, ropes or weighted bags on the corners and edges. Tarps are waterproof and UV resistant. They’re easy to install and remove as needed. However, tarps can sag, flap around and look unattractive in windy or stormy weather. They also need to be removed and stored when not in use.

Canopies

Pergola canopies consist of a fabric cover stretched over a metal frame that attaches to the pergola. The fabric is typically made from acrylic or polyester canvas, providing sun protection and water resistance while allowing air flow. Canopies come in retractable and non-retractable styles. They’re easy to install and provide an elegant finished look. However, they are a more expensive cover option and the fabric may need to be replaced eventually due to sun damage.

Retractable Awnings

Retractable awnings are motorized systems that allow you to extend and retract the awning cover at the push of a button. They’re usually constructed from aluminum and covered with acrylic canvas. Retractable awnings provide excellent protection from both sun and rain. When not in use they retract neatly against the side of the house. The biggest downside is the high installation cost. Professional installation is recommended.

Pergola Roof Panels

For permanent rain protection, solid roof panels can be installed on top of the pergola. Fiberglass, polycarbonate, metal, and even glass panels are options. Panels don’t only protect from rain but also provide shade and reduce UV damage. Roof panels require professional installation and are the most expensive option, but they provide long-lasting rain coverage and completely transform the look and function of a pergola.

Plexiglass Roof

Plexiglass or polycarbonate sheets are durable, transparent covers that can be installed above a pergola. They allow light to filter through while providing excellent protection from rain. Plexiglass is lightweight and easy to work with. It can be cut to size and attached to the pergola’s framing. The transparent sheets maintain views of the outdoors while keeping the structure dry. However, plexiglass can become brittle and discolored over time when exposed to sun and weather.

What factors should I consider when choosing a pergola rain cover?

There are several important factors to think about when deciding the best way to cover your pergola in rainy weather:

• Pergola size – Measure the length, width and height of your pergola to ensure the cover will properly fit the structure.
• Weather conditions – Frequent heavy rain, wind, snow, and storms require a more durable waterproof cover that won’t blow away or collapse from a deluge or snow load.
• Budget – Covers range dramatically in price from about $100 for a basic tarp up to $5,000 or more for a high-end retractable awning or roofing system.
• Appearance – Aesthetic preferences like color, fabric patterns and transparent vs. opaque covers may impact your choice.
• Features – Consider benefits like sun protection, retractability, insulation value, and ease of installation.
• HOA rules – If you belong to a Home Owners Association, ensure the type of pergola cover you choose is allowed.

Taking measurements, assessing your climate, and considering costs and appearance will help you select the ideal pergola rain protection solution for your specific needs and preferences.

How should I measure my pergola for a rain cover?

Measuring the pergola correctly is crucial to get a properly fitting rain cover that adequately protects the structure. Follow these steps:

1. Measure the length and width – Note the longest and widest points of the pergola in feet and inches.
2. Measure height at tallest point – This is usually at the peak of the gable or roofline.
3. Note overhang size – Overhangs at the eaves require added coverage.
4. Write down post sizes – Diameter and placement of posts will affect how cover secures.
5. Sketch outline – Draw an outline from the top with overall dimensions noted.
6. Account for hardware – Make sure bolts, lights or other fixtures don’t interfere with the cover.
7. Add several inches – Give at least 3-6 extra inches of coverage for a better fit.

Having detailed measurements and an outline drawing will allow retailers to customize the ideal rain cover for your pergola.

What materials are best for a pergola rain cover?

The most suitable materials for pergola rain covers include:

• Vinyl – Waterproof and durable yet flexible and lightweight.
• Polyethylene – Water resistant with excellent tensile strength.
• Canvas – Made from acrylic or polyester fabric, provides UV protection.
• Aluminum – Lightweight metal for structural framing that won’t rust.
• Polycarbonate – Plastic sheets are shatter-resistant and transparent.

Avoid absorbent fabrics like plain cotton which sag and retain moisture. Vinyl, polyethylene and canvas fabrics resist water, block UV rays and stand up to weather exposure. Polycarbonate, fiberglass and aluminum provide sturdy structural coverage from the rain.

How difficult is it to install different pergola rain covers?

Installing pergola covers varies in difficulty:

• Tarps – Easy. Can be installed temporarily with basic tools.
• Canopies – Moderate. Some metal frame assembly required.
• Retractable awnings – Difficult. Wiring and programming motors requires expertise.
• Roof panels – Very difficult. Requires carpentry skills to install panels.

While tarps are the easiest cover to install, more permanent options like roof panels and awnings may require professional installation. Canopies offer a compromise in providing solid coverage while still being DIY-friendly for most homeowners.

How much do different pergola rain covers cost?

Costs for pergola covers can range significantly:

Cover Type	Cost
Tarp	$100 – $500
Canopy	$800 – $2,500
Retractable Awning	$2,000 – $8,000
Roof Panels	$3,500 – $10,000

Tarps provide the most economical solution at around $100-$500. On the high end, permanent roofing panels typically cost $3,500-$10,000 depending on the materials, size and professional installation fees. Canopies and awnings fall somewhere in the mid-range.

How much maintenance do pergola rain covers need?

Most pergola rain covers are low maintenance:

• Tarps – Occasional resealing if tears develop. Take down and store when not needed.
• Canopies – Periodic cleaning. Re-waterproof fabric every 2 years.
• Awnings – Motorized parts may require annual lubrication.
• Roof panels – Clear debris like leaves to prevent water pooling. Re-apply protective sealant every 3-5 years.

Basic upkeep like cleaning and checking for wear extends the life of covers. Tarps need the most attention to prevent water pooling from tears or sagging. Solid panels and awnings are more durable and mainly need occasional cleaning and safety checks.

Conclusion

Covering your pergola is an important maintenance task to protect it from rainfall and moisture damage. There are several options like tarps, canopies and permanent roof panels that vary in cost, appearance, durability and ease of installation. Measure carefully, consider your climate and maintenance needs, and choose a rainproof material like vinyl, canvas or polycarbonate when selecting the ideal cover. With proper coverage, your pergola can stay looking beautiful and fully functional for many years of enjoyment, rain or shine. Investing in the right cover today will save you from much more expensive repairs down the road.