Thermo Ayous S4S Cladding – Smooth 4 Sides
Thermally modified Ayous cladding, planed smooth on four sides for a clean, contemporary face. Heat-treated at 212°C with no chemicals, so it stays dimensionally stable and naturally resistant to rot and insects, indoors or out.
Specifications & highlights
- Species: African Ayous, thermally modified at 212°C
- Profile: S4S — smooth four sides, square edge
- Sizes: 1x4, 1x6, 1x8, 1x10, 2x2, 2x4, 2x6
- Clear, knot-free architectural grade
- 100% chemical-free — heat and steam only
- 20-year residential warranty, Class B fire rating
- Recommended fasteners: 304/316 stainless steel trim head screws
Frequently asked questions
- How long does this cladding last?
- Thermo Ayous is Class 2 durable, with an expected service life of 30+ years. This performance is backed by a 20-year manufacturer's residential warranty against rot and decay.
- Does it require maintenance?
- If left untreated, it will age into a beautiful silver-gray patina. To maintain the original caramel tone, apply a UV-protective oil once a year.
- Is it resistant to termites?
- Yes. The thermal modification process removes the natural sugars (hemicellulose) that insects feed on, making it naturally pest-resistant without toxic chemicals.
- Can it be used in fire-sensitive areas?
- Yes, it holds a Class B Fire Resistance rating, suitable for premium residential and commercial projects.