Pool covers
Advice on use and maintenance

Discover our terrace shelters
Tips for use and maintenance

Opening and closing the retractable shelter

Make sure that there are no obstacles that will hinder the opening or closing of the shelter. The ground surface must always be clean, flat and even to allow the shelter to function properly.

To open, unscrew the anchors that hold the shelter to the ground (except those of the fixed element).

The opening of the retractable shelter generally requires the use of 2 people, regardless of the type of shelter. In the case of a wall-mounted shelter (which slides along a wall), you will be equipped with an additional pole.

Perfect guidance does not exist in this type of installation. Therefore, it is likely that your shelter will not line up exactly opposite its initial anchors when it is attached to the ground. Simply manipulate the shelter to match the mounting holes to the anchors.

We recommend the use of a small floor guide profile under the first sliding element of your shelter to optimize its guidance.

Cleaning – maintenance

VERANDAIR® shelters are designed to last for many years provided they are properly maintained.

The frequency and intensity of cleaning is determined by the nature of the surrounding pollution (rail traffic, industrial zone, proximity to the sea, surrounding construction sites, etc.) and is left to the discretion of the customer. In practice, we advise you to clean your shelter at least two to four times a year.

The conditions under which the cleaning operations of your shelter are carried out must not cause any damage to the structure and its environment. Check that the products used do not harm the materials that make up your shelter. If you use a ladder, be sure to protect the support ends of the ladder. We recommend that you use a ladder without direct contact with the structure.

Preferably use clean, slightly damp microfiber towels. Avoid using a scraper, especially a metal one, if possible. However, if you cannot do otherwise, make sure that no rigid metal parts come into contact with the glass, the seals and the aluminum profiles, and that no dusty particles get stuck under the blade of the scraper.

Do not use detergents. Never use solvents or scouring agents. Use neutral soap flakes (pH value between 6 and 8). Then, rinse thoroughly with a jet of water directed from top to bottom. Do not wipe dry (risk of scratching).

Cleaning should not be carried out at outdoor temperatures above 25°C and below 10°C. Do not clean the shelter in direct sunlight.

Using a silicone spray, lubricate the rails, slides and locks whenever necessary to facilitate the general operation of the system.

Clean the gutters of the house regularly to prevent water from overflowing onto the roof of your patio cover. It is strictly forbidden to walk on or place any heavy object on the shelter (risk of deformation, scratches).

The use of a high pressure cleaner or steam cleaner is not recommended. There is a significant risk of water infiltration in the cells of the roofing plates and of degradation of the silicone joints.

Condensation inside the patio cover

Condensation can occur in your patio/pool house. Condensation is nothing more than moisture seeking a way out in the cooling process of the warm air. The warm air will deposit the excess moisture in the coldest part of the room. In most cases, this will be on the vertical glass walls and/or the polycarbonate roof.

Better ventilation reduces humidity. The humidity of the ambient air should be between 45 and 55%. Above this humidity level, the room must be ventilated to bring in as much fresh, healthy and dry air as possible.

Modern homes are often equipped with a crawl space. This is located under the floor of the building and prevents the risk of humidity, especially in case of heavy rain. The ventilation of the crawl space is mandatory. However, to avoid condensation caused by rising damp, you should insulate the crawl space from the volume of your shelter.

Electrical equipment in the patio enclosure

To ensure your safety inside your patio enclosure, only electrical appliances and other equipment with a minimum IP64 protection rating (international standard) are allowed inside the enclosure.

Furniture and other fittings in the shed

Only outdoor furniture and materials intended for outdoor use are suitable for your shed.

Never place furniture or other accessories against the windows.

Maintenance tips for pool enclosures


You have just purchased a pool cover manufactured by VERANDAIR®.

The particularity of your pool enclosure, composed of mobile elements, is that it is telescopic and can be opened manually. It falls into the category of light structure pool covers, the whole being considered as removable and dissociable from the existing structures and considered as a movable asset.

In addition to off-season bathing, it will improve the cleanliness of your pool and its immediate surroundings and will ensure the safety of your children when closed.

This manual describes the use, safety, maintenance and warranty of VERANDAIR® enclosures.


The precise characteristics and dimensions are listed in the order confirmation before production begins.


3.1. Your shelter, given its width, can support a maximum snow weight of 60 kg per m². In order to withstand such an overload, the shelter must be anchored to the ground. In case of heavy snowfall, it is essential to remove the snow, especially since the snow may be “wet” and/or frozen. It is also possible, to avoid snow accumulation, to maintain a constant temperature of 12° inside the shelter.

3.2. Your shelter is designed to withstand a maximum wind speed of 100 km/hour, provided that the openings are locked and the ground anchors are secured. In case of wind speed higher than 100 km/h, it is recommended to use cables, straps, … to fix the shelter to anything that resists these wind speeds (wall, house, rock, …). We remind you of the importance of taking out insurance against the risks of storms, snow, hail and natural disasters.

3.3. The ground anchors must imperatively be fixed in a concrete footing with a minimum depth of 15 cm.


The pool can be a serious hazard for your children. Drowning can happen very quickly. Children near a pool require your constant vigilance and active supervision, even if they can swim. Learn life-saving techniques.

Memorize and post first aid numbers near the pool.

For France :
Firefighters : 18
SAMU : 15
Or 112
The number of the poison control center in your area

For Belgium :
The number of the poison control center in your area

4.1. Pool enclosure in the closed “safety” position

Your shelter is designed to protect children under 5 years of age from drowning, but it is not a substitute for common sense or individual responsibility. It is not intended to replace the vigilance of parents and/or responsible adults who remain the essential factor in protecting young children.

In closed position the shelter will be inaccessible to children provided that :

  • the access doors are locked and the keys removed from the locks.
  • the tilting or folding façade is locked.
  • the first mobile element (usually the smallest) is locked to the floor with knurled screws and knobs.
  • the last fixed element (usually the largest) is fixed to the floor with fixings that can only be removed with a tool.

4.2. Opening the pool cover

The opening of the retractable pool enclosure or veranda ALWAYS requires the use of 2 people. Without motors, it is impossible to guarantee the opening/closing of the pool enclosure by one person, regardless of the type of enclosure.

Make sure that the guide grooves in the lower rails of the enclosure and/or the guide rails on the floor are clean and clear of the inner and outer floor surface near the enclosure walls. The floor surface must be flat and even to allow for proper operation of the enclosure.

Unscrew all knurled knobs that hold the shelter to the ground (anchor points) except for those on the fixed element.

Generally speaking, it is much easier to open or close a pool enclosure when the door(s) are open to release the air inside.

If there are obstacles around your pool under the enclosure (ladder, diving board, buoys, table, chairs, deckchairs, …), you must unlock and tilt the front panel provided for this purpose. Please make sure to lock the front in horizontal position or open it in case of accordion front.

Do not allow anyone to lean, hang or swing on the front.

After opening (or tilting) the front, two adult persons push on the two uprights of the movable element furthest from the fixed element with equal force so that the elements align with the fixed element. Make sure that no obstacles will interfere with the maneuver. Also make sure that there is no one in the area of the moving shelter.

If the front panel is in the tilted position, it must be returned to the vertical position. You can then, if you wish, telescope it to the bottom of the elements which will free up space inside the enclosure.

You can now fully enjoy your pool, but be careful with children playing around the pool because in the case of a folded cover, it no longer ensures the safety of the pool.

As soon as your swimming is over, close your cover, it only takes a few moments and your pool is safe again.

4.3. Closing the pool cover

Return the front panel to the front of the element if it has been telescoped, tilt it if necessary to avoid obstacles and always lock it properly.

Make sure that no obstacles will hinder the maneuver.

Two adults hold onto the vertical posts of the first mobile element and pull it with equal force to the right and left of the shelter so that the element does not get in the way.

When all the elements are deployed on the pool :

  • return the front panel to the vertical position or close the folding front panel
  • Secure the enclosure with the floor fasteners provided for this purpose. Put the safety locks on the front panel in place
  • lock the doors
  • remove the keys and store them in a way that is inaccessible to young children

Do not allow anyone to walk on the shelter. Do not place heavy objects on the shelter (risk of deformation, claws).


To keep your shelter in good condition and to ensure its longevity, we recommend that you perform two maintenance operations per year. This consists of washing the interior and exterior walls. We advise you to use a telescopic broom with cotton bristles and a mild liquid soap. Then rinse thoroughly.

Avoid abrasive products, which may damage the surfaces of the shelter materials. The use of a rubber scraper may create scratches if it is in poor condition.

Use a silicone spray to grease the locks whenever necessary to facilitate the operation of the keys.

If you use a high pressure system to clean the shelter, be sure to direct the spray according to the instructions below to avoid introducing water into the roof plate cavities.



Wearing parts (guide rollers, castors, locks, etc.) must be checked regularly (once a year). Spare parts must be original.

If a malfunction occurs that prevents the pool from being closed and secured, or if the equipment is temporarily unavailable, take all necessary measures to prevent access to the pool by young children until the shelter is repaired.


After the shelter has been maneuvered, the mounting brackets do not fall in front of the ground anchor holes.

This is due to the lack of synchronization of the two people who maneuvered the shelter. To remedy this problem, simply start again by correcting the trajectory.

Tip: when moving the shelter, use the edge of the curbstone or a row of slabs as a reference.

Note that if the weather conditions allow it (no wind, snow), it is not necessary to put all the ground fasteners back in place every time you move. Those of the 2 end elements can be sufficient but are necessary.

I have condensation inside my shelter

This phenomenon is quite normal, it comes from the contact of the hot and humid atmosphere inside the shelter with the more or less cold wall in contact with the outside. It should be noted that all materials and components of the shelter are designed to withstand a humid atmosphere.

Transparent panels tend to bulge inside the shelter

The polymethylmethacrylate fillings that make up the transparent parts of your shelter are “hydrophilic”, they take up water according to the relative humidity of the air and therefore expand or shrink according to this humidity. This phenomenon can also be increased by the difference in expansion in the thickness of the material when the outside and inside temperatures are different. These phenomena are normal.

Are the roofing sheets resistant to hail?

The roofs of our shelters are made of alveolar polycarbonate, a material that is both flexible and extremely resistant to impact. However, we remind you that it is necessary to take out insurance against damage caused by exceptional weather conditions.

I have moisture at the end of the roofing sheets.

It is possible that the polycarbonate cells at the ends and at the junctions fill up with a little water or form droplets. This is a natural phenomenon due to the porosity of the polycarbonate and the condensation of the water contained in the cell air. This phenomenon is normal.

Is my pool cover waterproof?

The purpose of the pool enclosure is to create, when desired, in addition to the security of access, a space sheltered from rain, wind, dust, insects, and allows to obtain a pleasant air temperature and avoid the cooling of the water of the pool. The water and air tightness is not 100% guaranteed due to the sliding of the elements and it is not necessary to ensure the purpose of the pool cover.

Green or brown stains are forming on the inside of my enclosure.

Due to the high humidity inside the enclosure, and without sufficient ventilation, algae may appear in some places on the aluminum profiles, especially during the winter. This does not affect the quality of the product.

Tip: Before winter, spray the profiles with a mixture of water and anti-algae product.

Special note on sun protection products

Sun protection products are harmful to translucent materials and damage the plexus. Whitish halos appear. It is therefore important to avoid contact with such products on the plexus.

Special note concerning the pH of your pool

An unbalanced pH can cause various problems:

  • Deterioration of the material: fixings, lining, water filtration system, etc., and more particularly of the cover’s screws. In an acidic environment, stainless steel screws and bolts can show signs of oxidation (rust). These signs of “rust” do not imply a deterioration of the parts concerned but can be unsightly.

To prevent this, remember to regularly check your pH level to keep it neutral.

Vérandas VERANDAIR® : Our strengths
Why choose a veranda made by VERANDAIR® ?

An affordable price

Enjoy your terrace all year round

A veranda adapted to your own dimensions

Reliability & robustness

Aluminium structure 15 year warranty

Use of 100% renewable materials

100% Belgian production for over 31 years

Delivery and installation of your veranda by professionals

The Verandair® quality
Discover our others models

Retractable Verandas

Professional Verandas


Pool shelters

Satisfied customers

years of guarantee*

Dedicated staff

Years of experience

Opinions and testimonials
What our customers say about us


We put our trust in VERANDAIR and we do not regret it at all. Our pergola was installed by competent, careful people. The after-sales service is impeccable.



The result exceeds the buyer’s expectations… Meticulous and precise work, the follow-up from the manufacturing plans to the final assembly and even the small corrections afterwards, it is very professional!
Congratulations to all the teams who contributed to this.



Top team, boss available. Happy with my investment…



We had no idea how much the addition of a patio cover (45 m2) would improve our quality of life. The Verandair staff guided us to the most suitable solution. There were no nasty surprises. The installation team is as nice as they are efficient (they put in a lot of hard work!). We recommend them 100%.



Very happy! Beautiful finish…quality, seriousness and cleanliness from the placement team! All in a friendly manner and with good advice! Belgian company based in Wallonia, eager to meet our expectations throughout our project! To be recommended!


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