Single-Ply Low-Pitch Roof Solution with Velux Upstand Boxes – Woburn Sands | Quality Construction

Background

Starting point

The customer wanted a reliable, properly finished solution at the property in Woburn Sands. The starting point was existing roof was failing dramatically because unsuitable tiles had been used at a low pitch; Velux units are generally limited to a minimum pitch of 15 degrees without specialist solutions. The priority was to correct the issue properly and leave a durable, professional finish.

Existing condition

Existing roof was failing dramatically because unsuitable tiles had been used at a low pitch; Velux units are generally limited to a minimum pitch of 15 degrees without specialist solutions. The existing construction and surrounding details were assessed so the scope could focus on the areas genuinely requiring attention.

Challenges

The main consideration was integrating the new work correctly with the existing property while maintaining weathering, finish and build quality. No unusual additional challenge is recorded for this historic project.

Photography

Completed

Delivery

What we did

Reconfigured the roof using a single-ply membrane with a feature upstand detail and Velux low-pitch boxes to allow the roof windows to function correctly in the flatter roof construction.

Programme

Work stages

Inspection & preparation

Assess the existing substrate or prepared deck, remove failed material where required and clean the area thoroughly. QC focus: preparation, correct sequencing and quality of the inspection & preparation stage.

Repairs / build-up

Complete any structural, deck, DPM, insulation or upstand work required before waterproofing. QC focus: preparation, correct sequencing and quality of the repairs / build-up stage.

Waterproofing installation

Install the specified EPDM, single-ply or liquid-applied waterproofing system with careful detailing around edges, outlets and penetrations. QC focus: preparation, correct sequencing and quality of the waterproofing installation stage.

Trims & interfaces

Complete perimeter trims, wall details, fascias, gutters or adjoining roof interfaces. QC focus: preparation, correct sequencing and quality of the trims & interfaces stage.

Final inspection

Check continuity, laps/details and the finished appearance, then photograph and leave the area clean. QC focus: preparation, correct sequencing and quality of the final inspection stage.

Specification

Products & materials

Velux roof window / flashing system

Selected to introduce natural light while integrating with the roof covering using a purpose-made flashing system.

On site

Problems solved

Issue

The main consideration was integrating the new work correctly with the existing property while maintaining weathering, finish and build quality. No unusual additional challenge is recorded for this historic project.

How we fixed it

Quality Construction recommended a targeted, properly prepared installation rather than a temporary cosmetic repair. The agreed approach was to reconfigured the roof using a single-ply membrane with a feature upstand detail and Velux low-pitch boxes to allow the roof windows to function correctly in the flatter roof construction. with attention to preparation, detailing and long-term performance.

Outcome

A technically appropriate low-pitch roof solution replaced the failing tiled arrangement.

Standards

Planning, quality & handover

Quality control

Quality checks focused on preparation, alignment, weathering/detailing, fixings and the finished appearance relevant to this single-ply low-pitch roof solution with velux upstand boxes – woburn sands. Photographs should be used to evidence visible and hidden-stage workmanship where available.

Project management

The works were organised around a planned sequence and completed over 3 days. Materials, access and individual work stages were coordinated so the project could progress efficiently with minimal unnecessary disruption.