Measure the length.
Insulate walls or attic first.
Probably in more place than you think.
Measure the area needing insulation.
If you do have insulation find out the type and compare it to.
As for attic vs.
Wall insulation always go for the attic.
There are two ways to insulate around wires.
Tear the sheet across the width instead of tearing it lengthwise.
Determine if and where you already have insulation.
Achieving greater r values in exterior walls in exterior walls add insulating sheathing to achieve a greater r value in your wall system.
If the wire is too tight to the wall to make that easy you have a second option.
You can achieve better thermal performance in your attic by adding an additional layer of insulation.
You would stop heat loss from natural convection and block solar gain an increase in heat in the.
The worst part is getting the fiberglass batts up into the attic.
In addition if you re building a new home or remodeling make sure any attic decking that provides additional storage space or a platform for a heating and or cooling unit or hot water tank is raised above the ceiling joists to leave room for adequate insulation.
While not an easy or fun project you can insulate your attic by yourself.
Calculate additional insulation needed.
Always cover the tops of the ceiling joists to make sure the insulation is deep enough to reach your target r value and.
Walls typically have lower r value requirements but check local codes to be sure.
R 38 is the industry standard and.
Once the batts are up there it is a tedious task of laying the batts between ceiling joists.
Measure the depth of your current insulation.
First you can tear or cut the insulation sheets in half and lay half behind the wire and half in front.
The higher the r value the better the thermal performance of the insulation.
The largest pay back will be seen here.
How to install insulation.
For low slope roofs or houses with roof truss construction it s standard to insulate the ceiling before.
The batts install the same way.
And if there s any knob and tube wiring where insulation should go that needs to be replaced first.
In addition to walls and attics insulation should be installed in ceilings with unheated spaces basement walls floors above vented crawl spaces cathedral ceilings floors over unheated garages or porches knee walls and in between interior walls especially bathrooms as well as ceilings and floors.
Wires vents and non ic recessed lights complicate the task.
Walls or ceiling first.