Remove the old covering
Establish the condition, priorities and access before work is specified.
Built-up felt roofing
Layered bitumen felt systems for domestic and commercial flat roofs.
Built-up felt roofing.
JDL installs built-up bitumen felt roofing over a sound, prepared deck. Multiple layers and a high-performance mineral felt finish form the completed waterproof covering, with green and red finishes shown in the project gallery.
- Layered roofing system
- Hard-wearing mineral finish
- Garages and extensions
- Commercial flat roof applications
High-performance mineral felt roofing.
Green and red mineral felt finishes on JDL’s flat roofing work, with the roof edges and weathering details shown up close.
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The roof decides the specification.
Condition, roof shape, exposure, drainage, access and the surrounding details all affect the work required. JDL inspects those factors before confirming the scope.
How the work is completed.
The detailed method follows the agreed specification. These are the main stages.
Inspect and prepare the deck
Confirm the system, materials and practical arrangements in writing.
Apply the layered system
Complete the agreed work methodically and keep the property protected.
Finish edges and outlets
Inspect the completed work and confirm the applicable terms.
Your written terms
10-year guarantee.
10-year guarantee on eligible built-up felt installations.
The written quotation confirms the system, included work and the complete guarantee terms for the specified project.
Read the guarantee informationCommon questions.
What is a built-up felt roof?
It is a layered bitumen felt system installed over a sound, prepared deck. Multiple layers and a high-performance mineral felt finish form the waterproof covering.
What preparation is included before the felt is applied?
JDL removes the old covering, inspects and prepares the deck, then applies the layered system and finishes the edges and outlets. The agreed specification confirms the work for that roof.
Can photographs help with the first assessment?
Yes. Ground-level or safely taken photographs can provide useful context. A final specification may still require an on-site roof survey.
How soon will I receive my roofing quote?
After the site visit, JDL sends your written quotation within 48 hours. Most are sent within 24 hours.