Flat Roofing Cambridge

Cambridge Roofers were asked to carry out a survey and provide recommendations for the refurbishment of a failed asphalt flat roof on Hills road Cambridge.  The client had instructed previous contractors to refurbish the roof with a liquid overlay but there was no evidence of this and it had clearly failed.

The client was given a full explanation of their options and decided to recover the roof with a single ply EPDM and 120mm insulation board.  Due to the low position of the window sill, a gulley had to be formed to ensure that a minimum 150mm upstand could be maintained.

DESCRIPTION OF WORKS:

To supply and install new 1.52mm EPDM single ply membrane:-

• Manufacturer: Firestone.
• Material: EPDM.
• Thickness: 1.52mm.
• Colour: Charcoal.
• Perimeter: uPVC
• Warranty: 25 years.

To supply and install new timber decking.

• Decking thickness: 18mm Oriented Strand Board timber

To supply and install new 120mm foam board insulation with protective 18mm capping timber.

• Manufacturer: Ecotherm (or similar)
• Thickness: 120mm
• Composition: foam board
• Timber capping: 18mm OSB
• Building regulations compliant: Yes.
• U-Value: 0.26 W/m2K

Completed October 2017