Where’s the job?

Overview

• Installing modern flat roofing systems using advanced insulation, waterproof membranes and sustainable materials.

• Skill level: 4 / 5 (requires precise material layout, alignment of waterproofing layers and safe working at height).

• Typical duration: 2 – 4 days, depending on roof size and design intricacy.

Safety First

• Use appropriate fall protection, secure scaffolding and ladders when working at height.

• Always check that safety harnesses, head protection and edge restraints are in place.

• Confirm that all materials and tools are securely fastened to avoid falling hazards.

• Adhere to local building codes and manufacturer guidelines for product installation.

Tools & Materials

Step-by-Step

1. Prepare the roof deck – clear debris, repair any damage and confirm a level surface.

2. Lay a vapour barrier or primer where necessary to support adhesive bonding.

3. Fit insulation boards over the deck to enhance thermal performance.

4. Install the waterproof membrane, ensuring proper overlaps and secure fixing with adhesives or fasteners.

5. Apply roof felt or secondary underlay for extra moisture defence.

6. Install flashings around edges and roof penetrations to ensure a watertight finish.

7. Complete final checks – inspect for proper adhesion, seals and verify drainage is unobstructed.

Completion Checks

• Roofing surface is uniform, with all layers correctly aligned and sealed.

• Successful water tightness test and proper drainage confirmed.

• All flashings, seals and fixings meet local building regulations.

• Final surface is cured, neat and ready for any additional treatments such as gravel or protective coatings.

When to Call a Pro Instead

For complex flat roofing projects, steep roofs, or if the work involves structural alterations and detailed waterproofing under rigorous building codes, it is best to engage a qualified roofing specialist to ensure longevity and compliance.