The big disadvantage with spray foam is cost.
Insulating an attic with rolled insulation.
Proper attic insulation is the best way to prevent heat loss in the winter and retain cool air in the summer.
Having the correct amount of attic insulation can help you maintain a comfortable temperature throughout your home and help save money on your energy bills plus prevent major issues like ice dams in the winter.
In this video this old house general contractor tom silva and host kevin o connor explain how to insulate an attic.
Click the button to calculate the amount of insulation in square feet and man hours wall and ceiling fiberglass insulation needed for this job.
It s generally 3 to 4 times what you ll pay for blown cellulose or fiberglass.
Rolled or batt insulation when installing insulation in your home there are several important decisions to make.
Insulate water heaters to prevent costly energy loss.
While wearing dust mask and gloves carry r 38 batts of unfaced fiberglass insulation into the attic.
For diy attic insulation you ve got two choices.
This old house general contractor tom silva and host kevin o connor demonstrate the proper way to insulate an attic.
This includes information on how to work around existing insulation or what materials you ll need to start from scratch to ensure moisture stays out of your attic.
Both can be added to uninsulated attics or layered over existing material.
Input length and width of area to be insulated.
Adding insulation to your water heater can reduce standby heat losses by 25 to 45 percent.
I d blow insulation on the attic floor after air sealing of course.
These decisions will determine how effective the insulation will be in keeping your home comfortable throughout.
Insulate your attic outer walls and crawl space first as these areas have the most heat transfer.
There are other materials and systems that you can use to insulate your attic.
In this video we ll talk about how to insulate an attic with pre cut fiberglass batts and rolls along with all the tools and precautions you ll need along the way.
Once you ve decided which type is best for you examine the material options and prices to home in on the right product.
See below for a shopping list and tools.
So it s time to pay close attention to what s happening up there.
Lay the batts across the ceiling joists covering the existing insulation.
Look for insulating pre cut jackets or blankets with an insulating value of at least r 8.