The Challenge:

Tillsonburg, ON

As part of a Phase II renovation for Siemens’ Energy Blade Plant, Grassmere was contracted to add a Boiler Room addition to the existing plant as well as construct a Curing Building used in the process of manufacturing wind turbine blades. We designed a building envelope that met their stringent technical requirements, including high insulating values and heat-resistant materials.

The project took place within an active manufacturing environment which meant there was limited space to work and safety was a high priority.

The Grassmere Solution:

For the Boiler Room addition, Grassmere proposed a pre-engineered Butler Building as an alternative to the original conventional design during the tendering process.

In order to achieve the high insulating values required for the curing process in the Curing Building, we utilized eShadowall™ wall cladding with R20 insulation and the Butler TLS Roof System™ with R40 insulation.

The Result:

The pre-engineered Butler Building alternative solution resulted in a $58,000 cost savings and both the Boiler Room and Curing Building were completed on time and on budget while ensuring a safe work environment for all personnel within the site.

Basic Specifications:


Siemens Canada Limited


Tillsonburg, ON

Project Description:

Boiler room addition and construction of a new curing building

Construction Services:

Project Management

Sector Served:


Completion Date:

October, 2013

Total Square Feet:


Structural Systems:

Butler Pre-Engineered Building

Roof System:

MR-24® and Butler TLS Roof System

Roof Insulation Type and Thickness:

6"/R20 Metal Building Insulation (MBI) and R40 Roxul insulation

Wall System:


Wall Insulation Type and Thickness:

6"/R20 Metal Building Insulation (MBI) and 8" Roxul insulation

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