Patio furniture
Not one thing. A frame, a cushion and a cover made of three different materials, weathering outdoors at different rates and wanting three different answers.
Precautions
- Check the manufacturer's instructions
- Test on an inconspicuous area first
- Rinse thoroughly afterwards
In detail
Patio furniture is the clearest case here of an object whose name hides the thing that decides the answer. A single chair is commonly a coated metal frame, a foam or fibre cushion, and a woven cover — and guidance for one is wrong for the others. The frame is usually aluminium with an organic or anodic finish, and the finish rather than the metal is what is at risk. What is inside the cushion is the part nobody can see, which is why the fabric maker's instruction for washing a cover begins by telling you to ask the FURNITURE maker first. Outdoors changes the problem in two ways indoor furniture never faces. Growth is the main one, and the fabric maker's position is that mildew grows not on the fabric but on the dirt, pollen and debris that settled on it — which makes routine washing preventive rather than cosmetic. The second is temperature: the aluminium finish guidance is emphatic that a sun-heated surface must not be cleaned, because reactions on hot metal run fast and unevenly. The honest rule is about sequence, not product: work out what each part is made of, clean in the shade, use the mildest thing that works, rinse, and let it dry.
Related
- Patio furniture has the component Outdoor cushion
- Patio furniture is made from Coated aluminium
Sources for this page
Sources
AAMA 609 & 610-02: Cleaning and Maintenance Guide for Architecturally Finished Aluminum
American Architectural Manufacturers Association (AAMA), 2002 · Standards body
Relied on for: That finished aluminium should be cleaned in the shade and never when sun-heated, that mild detergent and water is the starting point, and that aggressive acid or alkaline cleaners and abrasives must not be used on the finish. (states this directly)
Verification: a person has read the passage relied on.
Read on — Read in full. Sections 3 General, 4.1 light surface soil, 4.3 organic coatings, and 5 Cleaning Precautions. Supports the claim as stated.
Sunbrella Upholstery Care and Cleaning
Glen Raven, Inc. (Sunbrella), 2023 · Manufacturer documentation
Relied on for: That the fabric does not promote mildew growth and that mildew grows instead on dirt and other foreign substances left on it, and that the furniture manufacturer must be consulted before removing a cushion casing. (states this directly)
Verification: a person has read the passage relied on.
Read on — Read in full: Outdoor Upholstery (removable and non-removable), Mold and Mildew, Indoor Upholstery, Helpful Hints, Retreating and Professional Cleaners. Supports a wider statement — our claim was widened. CleaningHQ expected a fabric manufacturer to prohibit bleach, as the wool guidance in this register does. This one specifies it, at a stated concentration, for its own fibre and for a reason — solution dyeing — that does not transfer to fabric dyed any other way. The catalogue therefore models the permission as a property of solution-dyed acrylic rather than of outdoor fabric, and the mildew-grows-on-the-dirt statement became the prevention answer for the whole family.
What CleaningHQ cannot answer yet
These are recorded questions about this subject that we have not yet researched to a standard we would publish.
- Removing algal growth from outdoor furniture without damaging the finish
- Whether hypochlorite is safe on moulded and coloured plastic outdoor furniture
Last reviewed by a person on .