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Why Do Hip Roofs Contain Mold? A Home Inspection I Performed in Averill Park NY: Hip Roofs

A Home Inspection I Performed in Averill Park NY.

I decided to write this blog after performing back-to-back inspections for 3 days in Averill Park NY and discovered mold within the attic of all 4 structures and they had a few things in common. The homes were all located within a 3-mile radius in Averill Park NY and contained hip roofs, all of the attics contained mold and all of the homes I performed home inspections on the attic did not contain adequate ventilation. I came to realize most hip roofs I inspect contain mold, so I put together this blog to go over hip roofs and the pros and cons of hip roofs and the reason mold growth is prevalent in attics that contain a hip roof.

Hip Roof

What is a Hip Roof and the Advantages?

A hip roof general design is ideal for protection against severe weather. The design of the roof has an advantage in areas that contain high winds reason being all sides of the roof are angled toward the ground reducing the exposure to upward drafts. Most hip roofs are walkable, do not contain valleys which makes them a little easier and cost efficient to repair or replace.

What Are the Disadvantages of a Hip Roof?

Generally speaking, in upstate New York & Averill Park NY roofs typically start venting from the soffit (outside air enters the soffit) and exhaust through the ridge (the peak of the roof). The ridge vent runs across the peak of the roof and pulls the air through the soffits and exhausts through the peak. The design flaw I see with homes I have inspected is the lack of ridge vent - which is the vent that runs across the peak of the roof that allows air to escape from the attic. See a picture below of a general venting setup.