Story

A visual transformation has occurred at Haworth of Holland, Michigan with the renovation of their office facility and the addition of the Haworth Center, earning LEED accreditation.

Catching your eye as you arrive at the facility is the 49,100 square foot vegetative roof covering on the Haworth Center. 

The original specification was a hot fluid applied roof system with a “conventional” vegetative roof covering, but due to the steep slope erosion of the growth media was a concern.  After consultation, the owner decided on an E.P.D.M. Roof System utilizing “LiveRoof” module plant containers as ballast.  This would minimize possible erosion and provide the owner with an “instant” green roof. 

Installation of the roof included placing a sound deadening batt system in the “Epicore” acoustical deck.  Over this, 3 ½ inches of rigid roof insulation, “R” = 21.1, was mechanically attached. 

A Firestone 60 mil adhered membrane was installed to provide a watertight enclosure so interior construction could continue while the “LiveRoof” plants matured. 

A Firestone 45 mil E.D.P.M. protection sheet was installed for the 21,226 “LiveRoof” modules to be placed on. The modules were constructed of recycled plastic, much of which came from Haworth.  The modules contain eleven varieties of sedum, chosen by the owner, for their “evergreen” color, fine texture, low growth height, and minimal maintenance.

A highly skilled labor force was able to keep the project on schedule, allowing for interior trades to work in weatherproof conditions.

TOTAL COST: $1 Million +

SUPERVISION: Dale Nykamp