Attic Insulation in Saint-Jean-Sur-Richelieu,QC
Challenge
During the inspection, our specialist noted extensive mold growth across several sections of the attic, a clear indication of persistent humidity and inadequate ventilation. Mold proliferation in such areas is typically driven by the accumulation of warm, humid air that cannot properly escape due to insufficient ventilation, often exacerbated by air leaks and deteriorated insulation. The existing insulation had significantly degraded, compromising its thermal barrier function and allowing uncontrolled thermal exchanges between the interior and exterior, thereby diminishing the overall energy efficiency of the home. Furthermore, numerous leaking points for external air—especially around ventilation ducts, plumbing, and electrical conduits—facilitated moisture ingress, exacerbating the humidity problem.
Solution
The attic renovation commenced with the removal of the existing insulation, enabling full exposure and remediation of mold-affected areas. Following this, air leaks were systematically sealed using ZypFoam, effectively stabilizing indoor temperatures and mitigating moisture accumulation. To complete the process, TruSoft cellulose insulation was installed, offering enhanced fire resistance and mold resistance while achieving a high thermal efficiency with an R-value of 60.
