At Friedman & Chapman, we have seen how a seemingly “minor” problem such as water leaks, damp walls, or damaged window frames can turn into a serious threat to your health, your belongings, and the structure of your home. Proper waterproofing of the roof, exterior walls, windows, and doors is not a luxury, but a legal obligation of the landlord under California’s Warranty of Habitability.
When these elements fail, your home becomes exposed to the weather, allowing water, mold, drafts, and extreme temperatures to enter. Today, we explain why this type of protection is essential, what the law says, and what you can do if your landlord does not comply.
Waterproofing: Essential Protection
A home without proper waterproofing can suffer leaks, persistent humidity, wall stains, roof deterioration, peeling paint, and mold growth. Beyond structural damage, these conditions can directly affect your health.
The California Department of Public Health warns that moisture and mold can cause allergies, breathing difficulties, inflammation, and affect especially children, older adults, and people with asthma or chronic illnesses.
What Does California’s Warranty of Habitability Say?
Civil Code §1941.1 requires that all rental housing be maintained in conditions suitable for human occupation, which includes being free of excessive moisture, leaks, and structural issues that allow rain or outside air to enter. This obligation falls solely on the landlord, not the tenant.
If the roof has leaks, windows do not close properly, walls show filtration issues, or doors allow water or drafts to enter, the landlord is failing to meet their legal duty.
What Happens If the Problem Is Not Addressed?
- Toxic mold that affects your family’s health
- Structural damage to walls, ceilings, and frames
- Strong odors, persistent humidity, and unsanitary conditions
- Damage to furniture and personal belongings
- Increased pests attracted by moisture
These conditions not only deteriorate the home: they can turn it into an unsafe and uninhabitable environment.
What Should You Do If You Face Leaks or Lack of Waterproofing?
- Document the problem with photos and videos.
- Notify your landlord in writing describing the damage.
- Keep copies of everything sent and received.
- Allow reasonable entry for repairs, but always at appropriate times.
- Contact a habitability attorney if the landlord does not respond.
At Friedman & Chapman, we defend tenants living in conditions that put their safety and health at risk. If your landlord ignores leaks, humidity, or deterioration of the roof or walls, you may have a valid legal case.