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The extension with a new seamless rubber roof and a glass rooflight

Project 04 · Roundhay, Leeds

Extension flat roof & rooflight

Ponding felt replaced with a seamless EPDM membrane, new insulation and a lantern rooflight – two days.

System
EPDM rubber membrane
Area
24 m²
On site
2 days
Guarantee
Example: 20 yr membrane

01Before / After

The extension with a new seamless rubber roof and a glass rooflight
Rear extension with a worn, mossy felt flat roof and puddles

02Scope

  • 01Strip felt and rotten decking
  • 02New OSB3 deck with a proper fall
  • 03Warm-roof insulation boards
  • 04One-piece EPDM membrane
  • 05Glass lantern rooflight fitted
  • 06New trims and gutter

03Timeline

  1. Day 1

    Strip, new deck and insulation, watertight by evening

  2. Day 2

    Membrane, rooflight, trims and gutter

04Materials

Membrane
1.2 mm EPDM, single sheet
Deck
18 mm OSB3
Insulation
PIR warm-roof boards
Rooflight
Double-glazed lantern
Trims
GRP edge trims
Next projectStone semi, full re-roofHorsforth, Leeds
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