SIA “TERMOLAT” Completes Large-Scale Reconstruction of the LU Botanical Garden Palm House

As part of a "Design & Build" contract, the SIA “TERMOLAT” team has completed a comprehensive renovation of the Palm House. The project involved the full replacement of wall and roof cladding, the restoration of structures damaged over time, and the installation of modern heat supply, misting, multifunctional LED lighting, and air exchange systems—all managed by automated climate control. Additionally, heated gutters were installed to collect rainwater year-round for plant irrigation. These technologies ensure optimal growing conditions, improve the environment for staff, and reduce CO₂ emissions.

History and Transformation

The history of the University of Latvia (LU) Botanical Garden Palm House dates back to the 1930s. Originally nine meters high, the roof was later raised to 12 meters. However, in the late 1960s, when the crown of a large-leaf fig tree reached the ceiling, the decision was made to construct a new building in its current dimensions: an area of 550 m² and a height of 24 meters. This building opened its doors in 1972. Since then, the Palm House had not undergone such extensive and comprehensive renovation work until now.

A Landmark Project for SIA “TERMOLAT”

SIA “TERMOLAT” proudly adds this challenging and rewarding project to its portfolio of completed works. Raimonds Ķeirāns, Chairman of the Board, reflects on the achievement:

“There is a true sense of satisfaction in what we have achieved, especially seeing the plants ‘thrive’ following the renovation. This project was full of challenges, as we had to work in harmony with the existing plants that could not be moved. We made every effort to maintain the best possible conditions for them throughout the process. I am pleased that we found the most effective solutions, particularly the innovative, multifunctional LED lighting. It provides the necessary light spectrum for the plants while offering a specialized mode for photography and filming, complete with light show elements. Furthermore, energy-efficient technologies are vital—such as the automated shading system and the innovative air turbulators, which have received the German Innovation Award. My sincerest thanks go to our employees for their hard work and to the representatives of the LU Botanical Garden for a productive and growth-oriented collaboration.”

A Rich Collection

The Palm House is home to the majority of the subtropical collection—more than 200 different plant species, including 25 different palm species and varieties. Visitors can view plants from every continent, including rare and endangered species from around the world, as well as more than ten plants listed on the IUCN Red List.

The Palm House has reopened its doors to visitors—we invite you to experience the results of our work and find a little warmth during the winter chill!