Drilling Floor Joists For Pex

Drill a series of holes through floor joists along one end of the room where you ll be adding hydronic radiant heating.

Drilling floor joists for pex.

Away from the top and bottom. When drilling through a stud be sure that each hole is at the same level so the pipe runs parallel to the floor. Drilling floor joists to run plumbing wiring or ducts can be tricky. Drill holes with a diameter of no more than one third the depth of the joist staying 2 in.

Holes anywhere in the web area of engineered i joists except within 6 in. Drill a series of holes along alternating floor joists on the other end. There are very specific locations and sizes in the code telling you what is allowed. Place the bit up to the stud and slowly start the drill allowing it to build up speed.

If the span requires say a 2x 10 joist spanning 12 the above rules apply. Have a helper feed the line to avoid kinks and snarls. Of walls and rim joists. Where and how to drill joists for electrical cables or.

Engineered floor joists can be drilled only according to their manufacturer s guidelines the code specifies the maximum size of the holes you can drill or the notches you can cut where you can and can t place them and how far apart they can be spaced. Drill through the sill plate and sub floor for each water line. The picture above shows what can happen when an untrained plumber is working on your home. If you re running pex through joists or studs drill 3 4 in.

There is a side to this that i have discussed with inspectors. If you have a 12 span and the joist is a full 12 you can drill a full 4 hole in the first and last 4. The maximum allowable diameter of a hole in any solid lumber joist is one third of. Some manufacturers recommend adding abrasion clips at each hole.