Shed roofing felt is a practical, budget-friendly solution for protecting garden buildings from leaks and weather damage. This guide explains the different types of shed felt available through Jewson, how to choose the right product, and practical installation steps. By understanding the durability, weather resistance, and application requirements of each option, homeowners can extend the life of their sheds while avoiding common installation pitfalls.
What Is Shed Roofing Felt And Why It Matters
Shed roofing felt is a flexible, waterproof membrane that covers shed roofs to shed water and protect underlying boards from moisture. It is typically made from bitumen or asphalt-saturated sheets and may include a mineral surface for UV resistance and ease of handling. The main benefits are simple installation, cost efficiency, and immediate weather protection. In regions with heavy rain or freezing temperatures, choosing a durable felt with good tear resistance and adequate thickness is essential to prevent early wear.
Key considerations include weatherproofing performance, durability under foot traffic during maintenance, and compatibility with roof coverings such as roof battening and edging. When selecting felt from Jewson, homeowners should balance price, installation ease, and expected lifespan, as well as whether the shed’s roof pitch meets product specifications.
Types Of Shed Felt Suitable For Sheds
Understanding the main types helps align performance with local climate and roof structure. The following options are commonly stocked and widely used for sheds:
- Bitumen-Impregnated Felt — Traditional, economical option with good waterproofing. Best for low-slope roofs and light-duty sheds.
- Fleece-Backed Or Reinforced Felt — Adds tear resistance and durability, often with a mineral finish for weathering protection. Suitable for moderate climates.
- Self-Adhesive Felt — Pre-glued backing that simplifies installation and reduces the need for heat or open flame; ideal for DIY projects but may have higher material cost.
- Mineral-Surfaced Roofing Felt — A mineral surface improves UV resistance and provides a cleaner finish. Common for longer-lasting protection on exposed sheds.
When selecting from Jewson, consider roof pitch, exposure, and the substrate. Some felts require battens and a drip edge for proper edge protection, while others are designed for quick application on small, flat roofs. For example, a shed with a gentle slope may tolerate standard bitumen felt, while a taller, exposed shed could benefit from reinforced or mineral-surfaced options to extend longevity.
Choosing Shed Felt At Jewson: Availability And Tips
Jewson offers a range of shed roofing felts alongside other roofing solutions. To optimize performance and value, use these selection tips:
- Check Roof Pitch Compatibility — Most shed felts are designed for specific pitches. Verify product data sheets to ensure the chosen felt adheres to the shed’s roof slope.
- Assess Local Climate — In wet, windy, or freeze-thaw regions, opt for reinforced or mineral-faced felts with higher thickness and tear resistance.
- Evaluate Underlayment Needs — Some installations benefit from an additional underlayment or slip sheet before applying the felt, especially on older or uneven roof decks.
- Consider Longevity And Maintenance — For sheds that endure harsh seasonal changes, choose a product with a longer warranty or a surface designed to resist UV degradation.
- Prepare For Accessories — Purchases often include starter strips, edge trims, and weatherproof sealants. A complete kit ensures a more durable finish.
- Ask For Product Data — Jewson staff can provide technical data sheets, application guidelines, and compatibility notes with local regulations.
Prices vary by thickness and reinforcement, so evaluating the total cost per square foot, including labor and accessories, helps avoid overbuying. For American homeowners seeking similar outcomes, note that while product naming may differ, the principles of selecting reinforced, UV-resistant, and properly rated felts apply across markets.
How To Install Shed Roofing Felt Step-By-Step
Proper installation is essential for sealing out moisture and achieving maximum lifespan. The following steps outline a typical installation process for sheds with standard pitched roofs:
- Inspect and prepare the roof deck. Remove debris, repair any damaged boards, and ensure a clean, dry surface.
- Measure and cut the felt sheets to fit the roof. Leave a small overhang at the edges to shed water away from the walls.
- Install the first course along the eaves, aligning the sheet so the nail or staple line lands on the batten, not on the felt’s surface.
- Secure felt using corrosion-resistant nails or staples at regular intervals, typically along the center and edges, following the product’s guidance.
- Overlap subsequent sheets according to the manufacturer’s recommended overlap (commonly at least 75–100 mm). Begin from the bottom and work upward to minimize water ingress at seams.
- Seal edges and penetrations with compatible sealant or adhesive as required. Use drip edges or trim to direct water away from walls.
- Install any reinforcing or mineral-surfaced top layers if specified for your product and roof design. This adds longevity and UV resistance.
- Inspect for gaps or bubbles. Press out air pockets and ensure full adhesion, especially at overlaps and near joints.
Safety note: when using self-adhesive or heat-based installation methods, follow manufacturer safety instructions and use appropriate PPE. For heavily weathered or high-slope roofs, professional installation may be prudent.
Maintenance And Longevity
Maintaining shed roofing felt helps maximize its protective function. Consider the following:
- Routine Inspections — Check for blistering, tearing, or UV degradation at the start of each season. Address small issues before they become leaks.
- Clean Edges — Remove moss, algae, and debris near eaves, which can trap moisture and cause deterioration over time.
- Weatherproof Repairs — Use compatible sealants and patches to repair damaged areas. Avoid heavy solvent-based products that may affect felt integrity.
- Replacement Intervals — Typical shed felt may last 5–15 years depending on climate, foot traffic, and roof exposure. Plan for periodic replacement in harsher environments.
When choosing a replacement or upgrade at Jewson, compare the expected service life, UV resistance, and warranty terms. A higher-performance felt may offer lower maintenance costs over time, even if the upfront price is higher.
Common Mistakes And Pro Tips
Avoid common pitfalls that undermine felt performance:
- Inadequate Overlaps — Ensure sufficient overlaps to prevent water ingress at seams.
- Improper Surface Preparation — A dirty or warped deck reduces adhesion and longevity.
- Over-Tight Nailing — Overdriven nails can tear the felt; use recommended fastener spacing.
- Not Matching Product To Roof Type — A product designed for higher slope may underperform on a flat or low-slope shed roof.
- Neglecting Edge Details — Proper edge trims and closures prevent wind-driven water from lifting the felt.
Pro tip: for DIY enthusiasts, self-adhesive felts can simplify installation on small sheds, while reinforced felts are preferable for larger or more exposed structures. Always review the product’s installation guide provided by Jewson or the manufacturer to ensure compatibility with your shed’s design.
Frequently Asked Questions
What is the best felt for a shed roof? The best choice depends on climate, roof pitch, and budget. Reinforced and mineral-surfaced felts tend to offer better longevity in harsher climates. Is felt waterproof? Yes, when properly installed and maintained, shed felt provides effective waterproofing, though no sheet is entirely maintenance-free. How long does shed roofing felt last? Typical lifespan ranges from 5 to 15 years, influenced by climate, sun exposure, and maintenance. Can felt be installed over existing roofing materials? Often yes, but ensure the substrate is sound, dry, and compatible with the chosen felt.