Shed Roof Re-felting service in Sawbridgeworth

A shed is often one of the hardest-working structures in a garden, protecting tools, bikes, lawn equipment, and sometimes even serving as a workshop or storage space. Yet the shed roof is frequently overlooked until a leak appears. One of the most common and effective ways to maintain a shed roof is re-felting. This article explains what shed roof re-felting is, why it’s important and what happens if you neglect it.

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What Is Shed Roof Re-Felting?

Shed roof re-felting is the process of removing old, worn roofing felt and replacing it with new felt. Roofing felt is a waterproof material, usually bitumen-based, that forms the main barrier between your shed roof and the elements.

Over time, felt can:

Crack due to sun exposure
Tear in high winds
Lift or blister as it ages
Allow water to seep through

Re-felting restores the roof’s waterproof layer, helping your shed remain dry and structurally sound.

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Why Is Shed Roof Re-Felting Important?

Re-felting your shed roof is essential because the roof is your shed’s first line of defence against rain, snow, and moisture. A well-maintained shed felt roof:

Prevents water leaks and damp
Protects stored items from damage
Extends the lifespan of the shed roof structure
Helps avoid costly shed roof repairs or full replacement

Regular shed roof maintenance and repair, including re-felting when needed, is far cheaper and easier than replacing rotted timber or buying a new shed.

What Happens If You Don’t Maintain Your Shed Roof?

Ignoring a damaged or aging shed roof can lead to several problems:

1. Water Leaks

Small tears or cracks in felt allow rainwater to seep in, especially during heavy or prolonged rainfall.

2. Timber Rot

Moisture trapped inside the shed can rot shed roof boards, support beams, and wall panels. Once rot sets in, repairs on your shed roof become more complex and expensive.

3. Mold and Damp

A damp shed encourages mold growth, which can damage tools, garden equipment, and anything stored inside.

4. Structural Failure

Over time, weakened shed roof boards may sag or collapse, making the shed unsafe to use.

How to Re-Felt a Shed Roof: Step-by-Step Guide

Re-felting a shed roof is a manageable DIY project for most homeowners. Here’s how to do it safely and effectively.

What You’ll Need

New roofing felt (shed or mineral felt)
Hammer or staple gun
Galvanised clout nails or staples
Stanley knife or utility knife
Tape measure
Roofing adhesive (optional but recommended)
Ladder
Protective gloves

Step 1: Remove the Old Shed Felt

Carefully peel off the old shed felt from the roof. Use a claw hammer to remove old nails or staples. Take your time to avoid damaging the wooden roof boards underneath.

Step 2: Inspect and Repair the Roof Boards

Check the timber decking for signs of rot or damage. Replace any soft, broken, or warped boards before continuing. A solid base is crucial for the new felt to last.

Step 3: Measure and Cut the New Felt

Measure the shed roof and cut the felt to size, allowing a slight overhang (about 50–75mm) on all sides. This overhang helps rainwater run off rather than soak into the edges.

Step 4: Lay the First Sheet of Felt

Start at the lowest edge of the shed roof, working upward. Lay the felt flat and smooth, ensuring there are no wrinkles or air bubbles.

Step 5: Fix the Felt in Place

Secure the shed roof felt along the top edge using galvanised clout nails or staples, spaced about 100–150mm apart. Avoid nailing through the lower exposed sections where water will run.

Step 6: Add Additional Layers (If Needed)

If your shed has a sloped roof or requires multiple sheets, overlap each new layer by at least 75mm. This overlap prevents water from penetrating between layers.

Step 7: Secure the Edges and Trim Excess Felt

Fold the shed roof felt neatly over the roof edges and nail it underneath the fascia or edge boards. Trim off any excess felt with a sharp knife for a clean finish.

Step 8: Seal for Extra Protection (Optional)

For added durability, apply shed roofing adhesive under overlaps or along edges. This step is optional but recommended in areas exposed to strong winds or heavy rain.

Final Thoughts

Shed roof repairs are an essential shed roof maintenance task that can dramatically extend the life of your shed. By replacing old or damaged shed roof felt, you protect the structure from water damage, prevent rot, and keep your belongings safe and dry. With basic tools and a bit of time, most homeowners can successfully re-felt a shed roof themselves, saving money and avoiding bigger problems down the line.

Regular inspection and timely re-felting ensure your shed remains a reliable and weatherproof part of your garden for years to come.

Areas covered

Sawbridgeworth (CM21) – including High Wych, Lower/Upper Sheering, Spellbrook
Bishop’s Stortford (CM23) – including Thorley, Havers, St Michael’s Mead, Birchanger
Nearby towns & villages across East Herts & West Essex

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Carrying out any shed roof repairs on your own can be difficult if you've never done it before, call me and you can be assured of a professional, re-felting job.