No roof venting to install complex roof are inherently difficult to vent sealing may be the solution may increase the usable area of a house.
Pros and cons of unvented attic.
Adding unvented attic insulation like spray foam seals the building envelope and stops airflow.
These roofs can lower your heating costs in the winter.
This reduces latent air conditioning loads and provides further reductions in energy consumption.
The pros unventilated attics are common where roof assemblies are complex and it s difficult to create a sealed ceiling plane.
If water or air ducts run through your attic space they are less likely to be affected by extreme temperatures and this can save you money on utility costs.
Poorly insulated ducting can cause heat loss in colder months and the loss of conditioned air in the summer in vented attics.
This air seal will help to make your home more energy efficient.
The hot humid air belongs outdoors and you need an air barrier between the hot humid air and the interior of your house as well as your attic.
When properly installed unvented roofs perform well and cause no excess moisture accumulation.
Making the attic a conditioned space means the space will be the same temperature as the rest of your home.
This is especially true if you plan to install any ducts in your attic.
Pros of building the sealed attic.