Insulate Walls Or Attic First

How to install insulation.

Insulate walls or attic first.

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. Wires vents and non ic recessed lights complicate the task. And if there s any knob and tube wiring where insulation should go that needs to be replaced first. Insulate and air seal any knee walls vertical walls with attic space directly behind them in your home as well.

Measure the depth of your current insulation. There are two ways to insulate around wires. You would stop heat loss from natural convection and block solar gain an increase in heat in the. As for attic vs.

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. If the wire is too tight to the wall to make that easy you have a second option. If you do have insulation find out the type and compare it to. Wall insulation always go for the attic.

Calculate additional insulation needed. The largest pay back will be seen here. First you can tear or cut the insulation sheets in half and lay half behind the wire and half in front. Achieving greater r values in exterior walls in exterior walls add insulating sheathing to achieve a greater r value in your wall system.

You can achieve better thermal performance in your attic by adding an additional layer of insulation. Once the batts are up there it is a tedious task of laying the batts between ceiling joists. Probably in more place than you think. R 38 is the industry standard and.

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 area needing insulation. Determine if and where you already have insulation. Always cover the tops of the ceiling joists to make sure the insulation is deep enough to reach your target r value and.

For low slope roofs or houses with roof truss construction it s standard to insulate the ceiling before. The higher the r value the better the thermal performance of the insulation. Measure the length. The batts install the same way.

Walls or ceiling first. 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. Tear the sheet across the width instead of tearing it lengthwise.