Cost-effective: Our panels are reasonably priced for residential as well as commercial solutions. Haohai wall PU FOAM sandwich panels can save on energy bills and provide you with well-insulated and structurally sound building.
These wall panels are with ready made hard skeletons in them Self-Supporting and Framed Panels – metal, ferrocement (concrete)Our Wall Sandwich Panels offer difficult solution for insulation and give the best take of its R-Value. They insulate buildings so that they stay cool in summer and warm in winter, without the need for energy-intensive heating and cooling systems.
Furthermore, our panels are able to provide immense structural support and reduce risks of damage in the case of high winds or from other possible natural disasters. Rest assured that your building will be well insulated and structurally integrity can rest rather easy with these Haohai wall PU FOAM sandwich panels.
The decision to utilize Haohai wall sandwich panels is the strength of choice, and your construction material will have a long life. Manufactured from only the finest materials, our panels are built to be durable and long-lasting, preserving the integrity of your building over years of use.

Superior to traditional materials, our wall sandwich panels are rot-proof, pest-proof and mold resistant; this makes them a great choice for both residential and commercial constructions. Haohai wall sandwich panels have you secure in the knowledge your building will be there for many more years.

Our panel’s sizes and thickness are versatile, able to adapt for different types of projects. Whether you need panels for interior walls, exterior walls or roofing, Trespa has the solution to meet your needs.

At Haohai, we know that every project is special. That is why we have custom options to serve your specific interests. If you are looking for custom-sized, -colored or –shaped panels—we have you covered.