That means insulating the attic floor only not the walls and having vents in the roof.
Proper way to insulate an attic.
R value is a measure of insulation s ability to resist heat traveling through it.
In this video this old house general contractor tom silva and host kevin o connor explain how to insulate an attic.
Before insulating seal any air leaks and make roof and other necessary repairs.
With a finished attic insulation must help keep the attic areas comfortable.
Lay the batts across the ceiling joists covering the existing insulation.
So it s time to pay close attention to what s happening up there.
The higher the r value the better the thermal performance of the insulation.
A finished attic should be insulated much like the rest of the house with insulation in the walls and ceiling.
If it is located in a conditioned part of the house also remember to insulate and air seal your attic access.
Insulate and air seal any knee walls vertical walls with attic space directly behind them in your home as well.
Insulating the attic is a surefire way to warm your home this winter.
But other home maintenance tasks can also defend your house and all of its inhabitants from chilly weather and blustering winds.
It s a diy project you can tackle in a weekend and the savings you ll get add up every year says toh general contractor tom silva.
Many garages have an attic above them.
If you re finishing your attic insulating it to the proper r value can cause a dramatic loss of headroom if you limit yourself to fiberglass batts.
Proper attic insulation is the best way to prevent heat loss in the winter and retain cool air in the summer.
Insulating the garage door is the easiest and cheapest thing to do.
How to insulate a finished attic.
While wearing dust mask and gloves carry r 38 batts of unfaced fiberglass insulation into the attic.
Additionally you can also purchase a new pre insulated door.
To meet all three goals insulating your finished attic ventilating the roof and maximizing headroom use a combination of dense batt insulation rigid foam sheeting and air chutes.
Insulation level are specified by r value.