Proper Insulation Roof Ceiling

Set up a stepladder tall enough to work comfortably from.

Proper insulation roof ceiling.

It s easier to knock out in a weekend and it s more relevant to most people s goals when it comes to insulation. Cathedral ceilings built using 2 x 12 roof rafters allow enough space for the fiberglass batt insulation and a 1 5 gap for ventilation. Before you slap on any headlamps you re going to want to determine what kind of insulation project you need to do. The standard width for joists is 24 inches.

This type of roof assembly is designed so the air can flow up the soffit vent through an insulation baffle pass through the 1 5 gap between the insulation and roof sheathing then exit through a ridge vent. The most proper insulation level to use on ceilings are r 30 batts that are as thick as r 25 batts but fit into a 2x10 framing. For example cathedral ceilings built with 2x12 rafters have space for standard 10 inch batts r 30 and ventilation. 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.

This can be achieved through the use of truss joists scissor truss framing or sufficiently large rafters. Always cover the tops of the ceiling joists to make sure the insulation is deep enough to reach your target r value and. Purchase rolls or packages of insulation that will fit in the spaces between the ceiling joists.