Proper ventilation is key to protecting your roof and attic space.
Insulating a home roof with a closed attic.
If you do not use the attic much it is pointless heating this area.
Thus the air in the attic is connected with the air in the house.
If you leave the insulation in the attic floor after insulating the roofline the attic will be cooler in winter than if you remove the insulation.
A finished attic should be insulated much like the rest of the house with insulation in the walls and ceiling.
The r 13 faced batt insulation is comprised of the r 13 faced batt insulation is comprised of pre cut widths to fit between the studs and joists in your home.
In particularly cold climates you might go up to r 60.
Insulating in and around your roof attic space also prevents long term damage from moisture build up or ice damming which results from the warm air trying to escape through the apex of the roof but instead heating up the snow.
In addition ecotouch insulation delivers comfort helps homes stay cooler in the summer and warmer in the winter.
Additionally insulation serves as a way to enhance sound proofing on the uppermost envelop of your house.
With a finished attic insulation must help keep the attic areas comfortable.
Look for water stains on the roof sheathing or damp or moldy spots on attic joists and existing insulation as a clue to where leaks might be.
At the same time the areas below the roof benefit from increased comfort both during the winter and the summer.
How to insulate a finished attic.
It creates a breeding ground for mold and mildew and ruins the air trapping pockets that block heat flow.
It has been said that insulating with spray foam insulation at the roof line will lead to moisture problems with the roof sheathing.
Whereas too little spray foam insulation can leave for thermal bypass because of the complete lack of insulation in the attic.
Box out light fixtures.
If there is inadequate ventilation or insulation you re looking at plenty of issues with your attic and roof that can range from mould rot ice damming and more.
But a common reason to put spray foam on the roofline is to avoid having to air seal the attic floor.
Insulating the attic floor.
So insulating the floor of the attic is not only the best solution but it is also the simplest and cheapest.
When the attic becomes part of the home to be heated and cooled open wall gable vents and roof vents are no longer feasible but the underside of the roof the sheathing and rafters can still.
Owens corning ecotouch insulation is soft to the touch easy to cut and install.
In general an attic s r value should be between r 30 and r 49.
Image courtesy of the holmes group.
That means insulating the attic floor only not the walls and having vents in the roof.