Our Plans

School/Education Center Improvements

Roof Replacement

We will replace the majority of the school roof, including all areas not completed in September 2019, using the same 50-year shingles and new, top protective layer.  

• The new top protective layer material is Thermoplastic Polyolefin or TPO. This is a reflective, single-ply membrane made from blending two tough materials: polypropylene and ethylene-propylene rubber. It’s single layer membrane, .08” thick, carries a 20-year warranty and is designed to be tough enough to hold up to our northwest wind and rainstorms. 
• The white color will reflect heat to reduce our new HVAC’s cooling load.  
• An extra layer of rigid, R-20 insulation over the wooden roof sheathing and beneath the TPO membrane will help reduce heating costs. 

Seismic Retrofit

Our plan includes seismic upgrading to the building areas where the roof will be replaced as it is most cost effective to do as part of the reroofing work. Steel reinforcements will strengthen the attachment of the roof to the walls and provide extra stiffening so the roof will help the walls better absorb the shock of an earthquake.  

At each phase of our school and education center’s major renovations, we have taken extra steps to upgrade and stiffen the structure to meet the newer seismic code requirements.  

• Following the master plan, roof reinforcements were added to the school roof’s middle portion when the new HVAC system was installed.  
• When the science room was constructed, additional wall reinforcements strengthened the building’s center.  
• The most cost-efficient way to seismically upgrade the roof structure is to do so while doing the reroofing. Postponing this seismic work will require costly and wasteful replacement of the new roofing materials around the building’s perimeter.