Internachi Attic Ventilation

Internachi inspection narrative library and other inspection related products.

Internachi attic ventilation. This course is free to all internachi members and can be taken again and again without limit. If the system is out of balance it s better to have more ventilation lower in the roof by way of larger intakes. Identify and describe each system and related components of the attic insulation ventilation and interior. Light w switch at hatch.

Learn how to perform an attic insulation and ventilation inspection during a home inspection. The entire space figures into the nfva calculation including the eaves porch covers garages etc. As you inspect the attic make sure that the soffit vents are not blocked by insulation. Attic insulation ventilation.

Page 7 of 170. The inspector shall inspect. 1 like rdeleon5 robert deleon april 13 2020 9 04am 6. Without adequate ventilation your home will encounter problems such as rapid shingle deterioration from melting mold build up throughout the attic wood rot and delaminating sheathing mildew peeling exterior paint rusty nails energy losses and many other problems that are often the direct result of inadequate attic ventilation.

And describe to clients defects observed at those syste ms and components. Subscribe and i ll update you on new video uploads at https. Even houses with unvented attic assemblies require ventilation for the isolated attic space over the unconditioned garage. Moving air through the attic will absolutely reduce the temperature in this cavity.

24 inch wide unimpeded walkway. 30 inch wide platform all the way around the appliance. Room ventilation fans that terminate in the attic especially under insulation. Ventilation of unfinished spaces including attics crawlspaces and foundation areas.

You may see individual vents each serving a rafter bay or continuous vents as you see here. Drip pans with proper discharge and overflow. 0 items 0 00. Insulation in unfinished spaces including attics crawlspaces and foundation areas.

Most homes have passive attic ventilation in the form of a ridge vent at the peak of the roof soffit vents in the eaves and gable vents at the top outside gable ends of the home or some combination of these vents.