2x4 Attic Joists

Put insulation meant for 2x4 framed walls between the joists which will be the same height as the joists then lay a perpendicular layer of attic insulation maybe r 30 on top of them.

2x4 attic joists. Positioning the new joist adjacent to the existing preserves precious ceiling but it does come with some potential complications. Chances are your attic is composed of 2x4 rafters and floor joists. Here s how to make undersized and o. Hot summers and cold winters.

Often existing joist bays are filled with electrical and heating ducts that will need to be relocated. Can it support an attic ladder and have some plywood put down and used as a storage area. While this is not the optimal setup it is acceptable to have ceiling joists covered with plywood or osb to use for light attic storage of dead loads. I live in the pittsburgh area.

Option 2 has the benefit of preventing any thermal bridging via the ceiling. You may walk along a plywood pathway and feel a little bounce in the floor and think hey maybe that s ok you may have plenty of head height up there in the middle and think it could work as a room maybe a home office with a desk and bookshelves where the. Some amount of thermal transfer will still occur through the joists themselves. Each joist is strong enough to support my weight 175lbs concentrated in a 1 segment of the joist and.

I d like to double my ceiling joists to make my attic space easier to work in for electrical plumbing and for lightweight storage. Depending on the existing attic structure a contractor might be able to sister the current joists by attaching new joists of the same dimension beside them. Sistering installing new larger joists next to the existing ones is one way to bring your attic floor up to code. Is an attic with only 2x4 joists holding up the ceiling strong enough to use for storage.

Please read disclaimer at end of description sorry this is my first video and i do a terrible job explaining but. There is a wall under part of the attic which helps support the studs at approximately midspan. In attics built purely for storage purposes you may find 2x6 ceiling joists or in some cases even 2x4 joists.