Is R30 Insulation Good For Attic

Since you are looking at r38 r30 i assume this is an attic.

Is r30 insulation good for attic.

You also don t see any gaps that allow you to see all the way down to the ceiling drywall. Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces. Some attic floors that already have a layer of insulation could benefit from an additional application over the existing layer. Your attic should have a certain amount of insulation in it and the recommended level of insulation for your attic is dependent on where you live.

Higher priced r30 insulation typically offer more durable material extended warranties and enhanced appearance and finish options. For loose fill cellulose this translates to a total depth ranging from 8 inches. The photo above shows an attic insulated with blown cellulose. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.

Attic existing 3 4 inches of insulation uninsulated floor uninsulated wood frame wall insulated wood frame wall 1 r30 to r49 r25 to r30 r13 2 r30 to r60 r25 to r38 r13 to r19 n a 3 r30 to r60 r25 to r38 r19 to r25 and add r5 insulative wall sheathing beneath the new siding 4 r38 to r60 r38 r25 to r30. First things first you need to go up into your attic inspect the condition of the insulation and calculate the current level of insulation. Wall insulation whenever exterior siding is removed on an. Use unfaced insulation when adding more insulation to an attic that already has some insulation laying the rolls or batts at right angles to the floor joists.

If using batt insulation between the rafters in the attic you probably end up with open space between each batt above the rafters. Notice how you don t see any of the ceiling framing down at the ceiling level. Not a good install. That s because blown insulation is great at filling the gaps and giving you a good complete layer of.

Inspecting your attic insulation. In temperate coastal areas such as zone 3 attic insulation of at least r30 up to a maximum of r60 is recommended. If your attic doesn t have any insulation used faced insulation placing it in the space between the joists with the paper side facing down toward the heated livings space. Depends on type of insulation and how it is installed.

Reduce total project cost by having multiple vendors bid on the same detailed work specification of your r30 insulation project.