The conventional design of the top insulation of the cold storage often adopts the 200 mm thick rigid polyurethane foam sprayed along the roof beam plate, referred to as the polyurethane insulation layer, and the surface of the insulation layer is painted with polymer mortar (steel wire mesh) and other structural practices.

The characteristics of this practice: the amount of polyurethane material is large, the difficulty of upward spraying construction is relatively high, the layered spraying construction is difficult, the thickness and surface flatness are not easy to control, and the difficulty of polymer mortar painting is also higher, and the appearance and health of the finished product do not match with the food storage, and it is difficult to arrange and fix the pipelines and lamps.

After multi-party technical comparison, the top insulation of the cold storage adopts the construction technology of polyurethane insulation combined with cement pressure board for the indoor thermal insulation ceiling of the cold storage, which solves the problems left by the traditional design better.

The main construction process is to embed the connector in the cast-in-place concrete slab, install the insulation boom on the connector of the embedded part, install the steel wire mesh on the insulation boom, and the insulation boom is connected with the adjustable hanging piece; Installing the upper layer C-shaped keel is connected with the adjustable hanging piece, and installing the lower layer C-shaped keel is connected with the upper layer C-shaped keel through the upper and lower layer keel connectors; Use stainless steel self-tapping screws to fix the FC plate on the lower C-shaped keel; Spray and fill polyurethane insulation material between the steel wire mesh and FC plate.

Its construction quality, construction efficiency, economy, appearance, performance and safety performance are better than the traditional design scheme, and can be used in a wide range in the future construction process.

Qichen can not only provide spraying blended polyol for cold storage indoor roof insulation, but also provide construction and technical guidance for this innovative technology, Please feel free to consult us.