Cracks, Holes, and Stains: Understanding Drywall Problems

According to the Gypsum Statistics and Information report, an average home needs over 7 metric tons of gypsum, the material used to make drywall.

It's not just a surface for painting or wallpapering; it's an essential part of your property's structure and aesthetics. However, even the most expertly installed drywall is susceptible to damage over time. 

Residents in Vancouver and beyond face various drywall issues, from minor cracks and holes to more severe problems like water damage and sagging. Understanding these problems and how to address them can save you time and money. This also calls for a trustworthy drywall repair Vancouver. 

Types of Drywall Damage and How to Repair Them

Cracks

Often a result of structural changes or moisture, cracks need immediate attention. Prevent widening by using joint compound and mesh tape for reinforcement.

How to Repair Cracks in Drywall

Holes

Size dictates the repair approach. For small punctures, spackling paste suffices. Larger holes may require a patch and joint compound for a smooth finish. Consider the following: 

Small Holes Repair

1. Cover the hole with a self-adhesive mesh patch. 

2. Apply spackle or joint compound. 

3. Sand smooth after drying. 

4. Paint to match the wall.

Large Holes Repair

1. Cut out the damaged area to create a clean edge. 

2. Install a support piece behind the drywall. 

3. Attach a drywall patch to the support. 

4. Apply self-adhesive mesh tape over the seams. 

5. Cover with joint compound, sand smooth, and paint.

Stains 

Indicative of water damage, stains require moisture source elimination followed by priming and painting to restore wall aesthetics.

• Identify the Source - Locate and fix the water leak source in areas like roofs, plumbing, windows, or HVAC units. Consider professional assistance if needed.
• Cleaning - Use a 10% bleach and water solution or a 50/50 vinegar and water solution. Apply, let sit, then dab off excess.
• Drying - Dry the treated area using a hairdryer or microfiber towel, or allow it to air dry.
• Priming - Apply an oil or shellac-based stain-blocking primer over the treated area.
• Painting - Paint over the primed area with a matching color. If necessary, consider repainting the entire wall or ceiling for uniformity.

Water Damage

Perhaps the most detrimental to drywall, water exposure can lead to warping, staining, and mould growth. Immediate action is required to dry out the affected area and replace any soggy drywall. 

• Remove Damaged Area - Cut away water-damaged drywall sections to create a clean edge for repairs.
• Dry the Area - Utilize fans, dehumidifiers, and natural ventilation to thoroughly dry the exposed studs.
• Repair/Replace - Patch minor damages using joint compound. For larger damages, measure and cut new drywall to fit, and secure it with screws.
• Finishing Touches - Apply joint compound over seams and screws, using mesh tape for seams. Sand the dried compound smooth, then prime and paint to match the wall.
• Mould Prevention - Use chemical sanitizers to discourage mould growth. Avoid using bleach as it is not effective in preventing future mould growth.
• Prevention - After repairs, fix leaks and improve drainage to prevent future water damage. Use moisture-resistant materials in areas prone to water exposure.

Sagging

Drywall ceilings can begin to sag over time or due to moisture. This usually requires replacing the affected sections and ensuring the ceiling joists are not compromised. 

Step 1: Identify the Cause

Determine if water damage, poor installation, or structural issues are responsible for the ceiling damage.

Step 2: Stabilize the Ceiling

Use support jacks to prop up the sagging area and stabilize it.

Step 3: Remove Damaged Material

Carefully remove any damaged or weakened materials from the ceiling.

Step 4: Address the Underlying Issue

Fix leaks causing water damage or perform necessary structural repairs to resolve the root issue.

Step 5: Replace Ceiling Materials

Install new drywall or other materials as required, ensuring proper attachment and leveling.

Step 6: Finish the Surface

Apply joint compound to smooth out uneven areas, sand the surface smooth, and paint the repaired area for a finished look.

Mould Growth

Mould can grow on and inside drywall in damp conditions. Removing mould-infested drywall and addressing the moisture source are critical to preventing health hazards. 

Step 1: Identify and Assess Moisture Damage

• Identify and repair the source of moisture.
• Assess the extent of the mould damage.

Step 2: Personal Protection

• Wear protective gear such as gloves and masks.
• Isolate the work area to prevent mould spores from spreading.

Step 3: Cleaning the Surface

• Vacuum loose spores using a HEPA filter vacuum.
• Clean the area with a mould-killing solution and scrub thoroughly.
• Ensure the area is dried completely.

Step 4: Remove Moldy Drywall

• Cut out and remove sections of drywall affected by extensive mould.
• Clean exposed framing before replacing drywall.

Step 5: Seal and Paint

• Apply a mold-inhibiting primer to the cleaned surfaces.
• Repaint using mold-resistant paint.

Step 6: Prevent Future Growth

• Maintain indoor humidity below 50% using dehumidifiers and fans.
• Regularly inspect and maintain areas prone to moisture to prevent mould growth.

How to Prevent Drywall Damages 

• Regular Inspections: Regularly inspect your drywall for any signs of damage, especially in areas prone to moisture or heavy traffic.
• Proper Installation: Ensuring your drywall is installed correctly can prevent many issues. This includes proper spacing between panels, correct joint compound application, and adequate frame securing.
• Moisture Control: Use dehumidifiers and ensure good ventilation in high-moisture areas like bathrooms and kitchens to prevent water damage and mould growth.
• Immediate Repairs: Addressing small issues promptly can prevent them from evolving into more significant problems. Small cracks and holes are much easier and cheaper than larger structural issues.

Frequently Asked Questions