A standard soffit should provide an air access. However, many houses have soffits that were not cleared. Les Entreprises J.M.Simard are specialized in normalizing this situation to enable attic ventilation.
Image 1 - Starting point: we had to remove the gutter and the fascia to gain acess to the soffits.
Image 2 - Once we removed the soffits, we found plywood, which we also removed to gain access to the attic and enable air circulation.
Image 3 - Finally, we used high-performance soffits and then put everything back in place (gutter, fascia). We then added two Maximum ventilators to let heat and humidity out of the attic.
Quite popular in the 1970s, mansard roofs are today the cause of many problems. Indeed, mansard roofs have no cornice, and thus no air entry. The resulting ice barriers in winter cause water infiltrations and the excessive heat in summer causes premature shingle wear-and-tear. To rectify this situation, Les Entreprises J.M.Simard have special soffits manufactured, in the form of a four inch extension with an air intake. This specially made soffit is essential for the good functionning of the attic ventilation.
Image 1 - Starting point: we create an opening between the roof and the mansard.
Image 2 - Second step: the opening provides an access to the attic.