2x4 Attic Joists

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.

2x4 attic joists.

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. With the 2x4 joist what insulation should i use since i do want to put some flooring down for storage. 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.

Hot summers and cold winters. In attics built purely for storage purposes you may find 2x6 ceiling joists or in some cases even 2x4 joists. Often existing joist bays are filled with electrical and heating ducts that will need to be relocated. I live in the pittsburgh area.

There is a wall under part of the attic which helps support the studs at approximately midspan. Positioning the new joist adjacent to the existing preserves precious ceiling but it does come with some potential complications. Here s how to make undersized and o. 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. Is an attic with only 2x4 joists holding up the ceiling strong enough to use for storage. The studs in question span 16. Sistering installing new larger joists next to the existing ones is one way to bring your attic floor up to code.

Option 2 has the benefit of preventing any thermal bridging via the ceiling. Chances are your attic is composed of 2x4 rafters and floor joists. Each joist is strong enough to support my weight 175lbs concentrated in a 1 segment of the joist and.