Insulate Walls Or Attic First

Wires vents and non ic recessed lights complicate the task.

Insulate walls or attic first.

More insulation installation tricks and tips work from the perimeter of the attic toward the door or hatch so that you don t trample all over the insulation you just. Measure the length. Walls typically have lower r value requirements but check local codes to be sure. Measure the area needing insulation.

R 38 is the industry standard and. For low slope roofs or houses with roof truss construction it s standard to insulate the ceiling before. The worst part is getting the fiberglass batts up into the attic. Once the batts are up there it is a tedious task of laying the batts between ceiling joists.

Wall insulation always go for the attic. While not an easy or fun project you can insulate your attic by yourself. Probably in more place than you think. Calculate additional insulation needed.

First you can tear or cut the insulation sheets in half and lay half behind the wire and half in front. 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. You can achieve better thermal performance in your attic by adding an additional layer of insulation. How to install insulation.

Tear the sheet across the width instead of tearing it lengthwise. 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. Measure the depth of your current insulation.

If you do have insulation find out the type and compare it to. An attic that has mechanical equipment in it that will be finished or will be used for storage needs to have spray foam at the roofline or rigid foam under the roofing. Walls or ceiling first. Achieving greater r values in exterior walls in exterior walls add insulating sheathing to achieve a greater r value in your wall system.

The largest pay back will be seen here. As for attic vs. Determine if and where you already have insulation. Insulate and air seal any knee walls vertical walls with attic space directly behind them in your home as well.

There are two ways to insulate around wires. The higher the r value the better the thermal performance of the insulation. If the wire is too tight to the wall to make that easy you have a second option.