Home ceilings are usually insulated in order to seal off the extreme temperatures in your attic.
Insulate attic rafters illinois.
The higher the r value the better the thermal performance of the insulation.
Make sure it is flush against the wood as even a 1 inch gap can cause a 20 percent heating loss.
This is an important step as you may find roof problems or rafter damage which a roofer should correct before you install new insulation.
The will hold open an air gap of approximately 1 inch to allow airflow past a layer of insulation.
Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces.
Extend insulation into joist space to reduce air flows.
Between the studs and rafters of exterior walls and roof.
If you re considering turning your attic into conditioned storage or living space it s worth changing tactics to insulate between the rafters and wall joists instead of the floor.
Attic baffles also known as rafter vents go along the sides of your attic and keep your soffit vents from being blocked by insulation.
Then feed the rolled insulation under wires and pipe if either is present.
For rolled insulation place it between roof rafters.
In finished attic rooms with or without dormer insulate 2a between the studs of knee walls 2b between the studs and rafters of exterior walls and roof 2c and ceilings with cold spaces above.
2d extend insulation into joist space to reduce air flows.
You can buy air ducts that staple to the inside of your roof above the eave vents and fit between the rafters.
In finished attic rooms with or without dormer insulate.
Between the studs of knee walls.
You can achieve better thermal performance in your attic by adding an.
Place the plastic sheeting on top of the rolled insulation.
Walls between living spaces and unheated garages shed.
Hire a pro to install spray foam insulation.
Ceilings with cold spaces above.
Achieving greater r values in attics.
All exterior walls including.
You can use rigid foam panels or do as tom silva does with nearly all houses these days.
Together with an expert you should inspect and consider the condition of your attic s current insulation if it has any.