In addition to causing destruction, water damage also has an adverse affect to indoor air quality of your home.
Damage from water can cause wood rot, insect infestation and mold .
The obvious causes of water damage are leaking roofs, windows, doors, foundation cracks and visible plumbing leaks.
These are fairly easy to detect, enabling a quick repair before maximum damage occurs.
The not-so-obvious culprits are moisture behind finished basement walls that are insulated with fiberglass; poor grading around foundation walls and air leaks that occur between living space and attic.
Insulating finished basement walls with fiberglass is not a good idea.
Fiberglass will absorb water and not allow it to travel through wall, preventing a drying effect. Some people think installing a plastic barrier in wall is answer, but this approach only traps moisture.
A better way is to use rigid insulation (also known as blue board). This insulation is semi-permeable and allows moisture to travel through wall, allowing it to dry.
Water can also enter basement if grade of land is pitched toward house.
Grading soil away from house and adding rain gutters will guide rainwater away from house.
Openings from house to attic and poor ceiling insulation in houses located in colder climates can lead to ice dams that cause water to back up into house.
Air leakage from house to attic will carry moisture in form of humidity into attic that can form water on underside of roof leading to rotting and mold.
Typical leakage points between house and attic are:
* leaky attic hatches * holes drilled for plumbing pipes and electrical wires that penetrate attic and are usually not sealed * Recessed light fixtures that are not airtight type * Exhaust fans that vent directly into attic