Tearing a roof during a storm or after hail can lead to significant water damage if not addressed quickly. Tarping a leaking roof is a practical emergency step to protect interiors, minimize damage, and buy time until professional repairs can be completed. This guide provides clear, actionable steps, safety precautions, and material recommendations to effectively tarp a leaking roof in a variety of situations.
Preparation And Safety
Before you start tarping, assess your surroundings and gather the necessary supplies. Prioritize safety: wear sturdy boots, gloves, eye protection, and avoid working on slick, wet, or windy roofs. If the roof is structurally compromised or the weather is severe, evacuate the area and call emergency services or a licensed roofer. Keep children and pets away from the work zone.
Key safety considerations include:
- Avoid stepping near skylights or vents that can shift under weight.
- Use a stable ladder and secure it on level ground. Have a helper hold the base if possible.
- Avoid working alone; have another person assist with handling the tarp and equipment.
- Wear non-slip footwear and use a rope or tether if the roof edge is exposed.
Assessing The Leak And Materials
Identify the leak location and determine the size of the tarping area needed. Look for active drips, water stains on ceilings, and any obvious gaps around chimneys, vents, or flashing. Document the leak with a quick note of locations to guide roof access and tarp placement.
Typical materials for tarping a leaking roof include:
- Heavy-duty polyethylene tarp, at least 6 mil thick; larger dimensions (10×12 ft or 12×16 ft) cover more area with fewer seams.
- Rope or bungee cords to secure the tarp edges, and rope to anchor the tarp to a sturdy structure.
- Roofing nails or capped screws, a hammer or drill, and plastic sheathing or roofing nails with washers to prevent tearing the tarp.
- Roofing spray or sealant for temporary edge sealing around penetrations.
- Roofing tarps can be weighted with bricks or bags of sand if wind is a concern.
Inspect vertical surfaces and overhangs to determine where to anchor the tarp. If wind is a factor, plan for additional tie-downs on the upwind side to prevent the tarp from billowing.
Step‑By‑Step Tarping Process
Follow these steps to tarp a leaking roof efficiently and securely. Keep the tarp flat and avoid creating tension points that could tear the material.
- Position the tarp so it fully covers the leak and extends beyond the perimeter by at least 2 to 3 feet on all sides.
- Roll or fold the edges of the tarp to create a neat, reinforced border and prevent wind from catching loose corners.
- Place the tarp over the lowest edge of the roof first to prevent water from pooling at the edge, then work toward the highest area.
- Secure the tarp along the edges using roofing nails with washers or capped screws, placing fasteners every 12 to 24 inches depending on wind exposure.
- Anchor the corners with rope or bungee cords and tie to solid structures such as ridge beams, weathered wood, or large gutter sections. Do not rely on light fixtures or fragile edges for anchoring.
- Use additional rope lines along the sides to create a taut, drum-tight installation. If gusts are anticipated, add weight along the lower edges to prevent fluttering.
- Seal around penetrations with a compatible sealant or overlapping layers of tarp to minimize water intrusion. Apply a bead of sealant along the joints where the tarp corners meet the roof.
- Test for gaps by gently pressing the tarp and listening for wind-driven movement. Adjust fasteners and add more ties if necessary.
- Inspect the tarped area from the ground and from a safe vantage point to ensure full coverage and secure attachment.
Securing And Finishing Touches
Finishing touches improve durability and reduce the risk of wind damage. After tarping, ensure edges are sealed and anchored properly to resist weather changes.
- Re-check the tarp after the first 30 minutes and then hourly during the first few hours of a storm to catch loosening fasteners.
- Place additional weights along the lower edges or use sandbags to reduce movement in high winds.
- Where feasible, create a rain diversion by angling the tarp slightly away from doors, windows, and entryways to prevent water from entering the structure.
- Keep an eye on interior water intrusion and dry up any active leaks inside to limit secondary damage such as mold growth or ceiling collapse.
- Document the tarp setup with photos to assist with insurance claims or future repairs.
Preventive And Aftercare Steps
Once the temporary tarp is in place, plan for permanent repairs as soon as possible. A tarp is a stopgap, not a fix. Schedule a professional roofer to assess and repair the roof’s underlying damage, including flashing, shingles, and structural components.
- Request a written estimate, including inspection, removal of damaged materials, and replacement of affected sections.
- Review your insurance policy for coverage on storm damage and temporary repairs. Keep receipts for tarp materials and labor if applicable.
- Follow up on weather forecasts and adjust or replace the tarp if weather conditions change or wind increases.
- Consider permanent upgrades such as better flashing, reinforced roof-to-wall connections, or a temporary roofing membrane for repeated storms.
Common Mistakes To Avoid
Being aware of frequent missteps can save time and reduce damage. Common errors include underestimating wind load, using thin tarps in windy conditions, improper edge sealing, and failing to secure corners adequately. Avoid working on wet, slippery surfaces, and never place tarps over electrical equipment or exposed wiring. Always prioritize safety and call a professional for roof sections that require scaffolding or roof access from dangerous angles.
When To Call A Professional
A professional roofer should be engaged when the leak is large, the roof structure appears compromised, or tarping cannot safely cover the area. If the leak persists after tarping, or if there is significant interior damage, contact a licensed roofer immediately. For high winds, heavy rain, or complex roof geometry—such as multiple penetrations or steep slopes—expert assistance is advised to ensure a reliable temporary fix and a durable permanent repair.
Frequently Used Tips For Effective Tarping
- Choose a tarp size that affords ample coverage with extra room for secure anchoring.
- Anchor every edge and corner to eliminate flutter and reduce wind uplift.
- Seal around penetrations to prevent water from seeping beneath the tarp.
- Keep a maintenance check schedule to re-secure the tarp after weather changes.
- Document conditions and communicate with the insurance provider when filing a claim.