When working in humid or demanding conditions—such as in construction, trailers, or outdoor finishing—standard plywood is often not sufficient. It can delaminate, warp, or rot quickly. That is why, in these situations, warranty plywood is often chosen, a high-quality, durable panel that has been specially developed for the right application.
Warranty plywood is an extra strong and waterproof plywood panel with a phenolic top layer. This top layer provides:
The panels consist of multiple layers of tropical hardwood glued together under high pressure using waterproof adhesive (WBP | Water Boil Proof). This creates a board that is much stronger than standard plywood and can withstand harsh conditions for a long time.
Plywood was originally developed for making concrete formwork, where the panels need to be reusable without damage. Nowadays, plywood is used in applications such as:
There are many types of concrete plywood, but not every sheet meets the same quality standards. Solid John stands out thanks to a number of important advantages that make all the difference, especially in damp conditions.
Solid John plywood is produced using high-quality WBP gluing. This keeps the board stable, even when exposed to moisture for long periods of time. Whereas standard plywood will rot or delaminate over time, Solid John retains its shape.
Solid John stands out thanks to the 10-year warranty that comes with its panels. The ROOF panel even comes with a comprehensive warranty that covers not only the panel itself, but also any consequential damage and labor costs should a problem arise. This means 100% peace of mind for the client, architect, roofer, and distributor.
Strenge Solid John is not a generic board, but a brand that stands for consistent and proven quality in the use of tropical hardwood. Only selected wood layers are used in production, and strict checks are carried out on:
So you are guaranteed to get a record you can rely on.
Solid John panels have a smooth, hard phenolic resin film that:
This makes them ideal for visible work or intensive use in roofing, trailer construction, or outdoor structures.
Because the panels are water-resistant, rot-proof, and come with a 10-year comprehensive warranty, you can use them in virtually any environment, from construction sites to stables, and from garden sheds to professional roof edges.
Where a plywood panels needs to be used in humid conditions, it is best to choose Solid John.
✔ High water resistance
✔ WBP-Glued
✔ Sustainability class 2
✔ 10-year warranty
And within that range, Solid John stands out as a premium choice. Thanks to its high-quality materials, strict quality control, and proven durability, Solid John offers the assurance that your projects will withstand moisture, stress, and intensive use—year after year.
