Moisture Damage

Avoiding Moisture Damage

The following information was obtained from the TARION website. Today’s energy-efficient homes are built tightly to seal out the cold weather in winter and seal in the air conditioning in summer. Because of this it is possible that a new home can be severely damaged by lack of ventilation or excess moisture. It is important to remember that moisture damage to your home caused by the improper or inadequate use of your home ventilation system, or other kinds of preventative maintenance, is not covered by the new home warranty.

What Causes Moisture Damage?

Your home can be damaged when weather-related water is allowed to enter and remain in the structure. Water from leaking pipes or fixtures that is not immediately cleaned up, and indoor humidity levels that are not properly controlled, can have serious consequences. Sometimes this damage is easily seen; at other times the damage is hidden inside wall and roof spaces. Regardless of where it occurs, moisture damage can lead to serious problems, such as rot and structural failure.

How Can I Control Moisture?

Always use your home ventilation system to control moisture. In a typical home, over 20 litres of water are added to the indoor environment every day. That’s 7,300 litres in a year, enough to fill a medium-sized swimming pool. Bathroom fans, kitchen range hoods and packaged ventilators such as heat-recovery ventilators are specifically installed in your home to help you control moisture and contaminants. Regular use of your home ventilation system will exhaust excess airborne moisture caused by bathing, showering, doing laundry and cooking.

What Else Can I Do To Control Moisture?

Here are some extra tips you can follow to help prevent moisture damage to your home.

Outside the home

  • Keep flowerbeds or landscaping at least six inches or 150 mm away from the top of the foundation. Placing soil near or above the top of the foundation allows moisture to come into direct contact with the structure of the building.
  • Clear eavestroughs of debris regularly and extend downspouts so that water is directed away from the building. Water flow can erode the ground near the foundation and create depressions where water collects. Standing water near the foundation can force its way into the basement.
  • Fix the caulking around windows and doors and on the roof if it becomes cracked or separated.
  • Have your roof inspected regularly to ensure shingles, flashing and chimney caps are in place and sealed properly.

Inside the home

  • In the winter, keep the relative humidity in your home in the range of 30-45%. Lower humidity levels may affect your health and cause things made of wood to shrink. Excess humidity can cause condensation on windows and damage the surrounding wall. When using a humidifier, follow the manufacturer’s instructions.
  • In the summer, dehumidify the basement to avoid condensation build-up on the cool foundation walls. Relative humidity levels should not exceed 60%.
  • Repair leaky pipes and fixtures immediately. Clean and completely dry any areas that are dampened or wet within 48 hours.
  • Store organic materials such as newspapers and clothes away from cool, damp areas. Keep storage areas tidy so that air circulates freely.
  • Purchase a “hygrometer” to monitor the relative humidity in your home.
  • If you are adding a hot tub to your home, or have a large collection of plants, consider the amount of moisture they will add to your indoor air and ventilate accordingly.
  • Never vent your clothes dryer inside your home. If you have a gas or propane-fired dryer you may also be venting carbon monoxide inside your home!
  • Investigate and identify any musty smells and odours. They are often an indicator that there is a hidden moisture problem.

Pre-Delivery Inspection

Your new home has been inspected by our staff at every stage of construction. Further inspections have been carried out by municipal building inspectors, electrical and plumbing inspectors. Now it’s your turn to go over every aspect of your new home in detail. At some time you will, together with RVL’s representative,inspect your home. This pre-delivery inspection is mandatory. You will be contacted to set up an appointment for this inspection.

At this time you will complete a NEW HOME WARRANTY PROGRAM Certificate of Completion and Possession, which will enrol you in the New Home Warranty Program. This will be provided to you by RVL. This lists any defects discovered during the pre-delivery inspection, but your Warranty is not limited to these items. Your RVL Builder’s Warranty provides for the correction of any defects reported within one year of occupancy.

Furthermore, your New Home Warranty will protect you against major structural defects reported during the subsequent six-year period. If you miss anything during your pre-delivery inspection, items of concern can still be reported to RVL during your first year of occupancy. To help you with your pre-closing inspection, we’ve provided a usefulchecklist.

Seasonal Care

Four Seasons Home Maintenance

To keep your new home in prime condition over the years, a program of preventive maintenance is required. By thoroughly inspecting your home once a season, you can detect and repair problems before they become emergencies. This can save you time, worry and often money. The following information was obtained from the TARION website.


RVL Homes takes pride in building quality homes and equal pride in the after-sales service that will make living in your new home a pleasant experience.
Tarion Seal

Spring Care

  • Clean furnace filter and heat recovery ventilator (HRV)
  • Check attic
  • Check sump pump (if installed)
  • Clean humidifier
  • Remove snow and ice from overhang and vents
  • Check and reset ground fault circuit interrupter (GFCI)
  • Test smoke alarms and carbon monoxide detectors
  • Check eavestroughs and downspouts
  • Clean furnace filter and HRV
  • Clean humidifier
  • Inspect basement or crawl spaces
  • Check roof for loose or cracked shingles
  • Check driveways and walks for frost damage
  • Check water heater for leaks
  • Turn on exterior water supply
  • Plan landscaping to avoid soil settlement and water ponding
  • Check and reset GFCI
  • Test smoke alarms and carbon monoxide detectors
  • Inspect fences
  • Check caulking for air and water leaks
  • Lubricate weatherstripping
  • Check exterior finishes
  • Check windows and screens are operating properly
  • Check septic system (if installed)
  • Check and reset GFCI
  • Test smoke alarms and carbon monoxide detectors

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