The roof is made of pre-fabricated 12-1/4 inch SIPs(structural insulated panel) with a R-47 value. A team member of subcontractor Earth Bound Homes prepares to fit an Insulspan SIP for the roof. (Photo courtesy Bryan Mekechuk)

The roof is made of pre-fabricated 12-1/4 inch SIPs(structural insulated panel) with a R-47 value. A team member of subcontractor Earth Bound Homes prepares to fit an Insulspan SIP for the roof. (Photo courtesy Bryan Mekechuk)

The roof is made of pre-fabricated 12-1/4 inch SIPs(structural insulated panel) with a R-47 value. A team member of subcontractor Earth Bound Homes prepares to fit an Insulspan SIP for the roof. (Photo courtesy Bryan Mekechuk)