SR1 – SR6 · Bitumen felt

Sunderland Bitumen Felt Flat Roof Renewal

A proper torch-on system in Sunderland is three layers: a perforated base sheet, a polyester-reinforced underlay, and a mineral-finished cap sheet. Torched to itself, not to timber, laid with full bond and 100mm laps. Done right, it outlasts most owners' interest in the property. We're regularly on roofs close to the A19, out around Sunderland Enterprise Park, through Roker and Fulwell.

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Three-layer polyester-reinforced SBS-modified bitumen
Perforated base sheet (partial bond) — prevents deck-stress cracking
Underlay and mineral cap sheet fully torched with 100mm laps
Aluminium drip and trim to gutter edge — not felt turn-down
Upstand dressed to 150mm minimum against any abutment
20-year manufacturer's guarantee on the membrane

Why old felt roofs get a bad name

Pre-1990s single-layer pour-and-brush felt on timber deck with no primer failed within 8–10 years and gave felt a terrible reputation. Modern three-layer SBS-modified torch-on is a completely different product — same category, different generation. Coastal terraces in Roker and Fulwell, ex-colliery rows in Hendon and Pennywell, and 1960s semis through Castletown — many with original Welsh slate still in service. A lot of Sunderland garages and single-storey extensions have marginal falls (1:60 or worse). Torch-on with proper primer copes with that; GRP struggles at flat.

What we don't do

Two-layer 'quick' felt roofs, or torching straight to a damp deck. Both fail early. If the deck's wet, we lift and re-board — it's usually £150–£300 of ply, and it's the difference between a 5-year and a 20-year roof.

Coverage

SR1 – SR6 in full, direct access off the A19. We also cover Seaham, Washington, Houghton.

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Torch-on felt flat roofing in Sunderland — FAQs

How long does a torch-on garage roof last?+

20+ years for a three-layer SBS-modified system installed correctly. We've walked on 25-year-old roofs of ours still bone-dry.

Can you overlay onto existing felt?+

Only if the existing is dry, sound and well-bonded. Nine out of ten times it isn't — we strip and re-lay. Overlaying a failed roof just adds weight to a problem.

Is torch-on cheaper than GRP?+

Slightly cheaper on materials, similar on labour, and marginally cheaper overall. Difference isn't big — pick on suitability, not price.

Do you cover Sunderland?+

Yes — SR1 – SR6 in full, and neighbouring towns.

Need Roofing Work You Can Rely On?

Contact Stoker Property Solutions for new roofs, flat roofing, repairs and maintenance across Newcastle, Sunderland and the wider North East.

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