Here are six common ways that floor joists and girders in crawl spaces can be damaged.
1. "Wet" Rot On Floor Joists & Girders: Also called "soft rot", this fungi is known to break wet wood down into cellulose, which will significantly weaken and decompose the material. When choosing between replacing and reinforcing joists that have been damaged, look carefully at the color of the wood. Advanced damage will show up as darkening and shrinking of the wood. It will have a soggy, spongy appearance, and will show signs of prolonged moisture exposure. Often, replacement of this wood will not be necessary. Instead, installing a sister beam
Serving All of North Alabama
Free Estimates Available 24/7
Call us: 256-337-8441
Email us: firstname.lastname@example.org
and sturdy joist supports may be more than enough to address all present damage, and restore your structure to a stable condition. Compared to other sources of structural damage (frost heave, foundation settlement, bowing foundation walls, etc.) it's relatively easy and inexpensive to reinforce joists and girders in a structurally damaged crawl space. Girder and joist jacks can be installed at key locations along the structure. Once in place, the floor can be "jacked up" in an attempt to lift the floor back to a level position. If a contractor finds a joist is severely damaged, a sister beam can be installed alongside the normal one for extra strength.