Flat Roofing, Underslating & Shingles - Good Idea Leaflet 64

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Calculate the flat area of your roof in metres.

Timber kerbs are firmly fixed to the deck along an edge of a roof to prevent water run-off.

The lower edge of the flashing strip will overlap the top edge of roofing material to ensure a weathertight seal.

The welted drip is formed out of Easy Seal Capsheet, firmly fixed timber battens and hardboard strips.

Diagrams of welted drips at eaves or verge and junction of drip edge and check kerb.

Welted drip at internal corner.

Welted drip at external corner.

Wall and upstand extrernal angle.

Junction of welted apron and wall upstand.

Wall and upstand internal angle.

Torch-on products are installed using a purpose made roofing gas torch.

Torch-on products can be torched directly onto sound, unchipped, clean and dry existing waterproofing.

The membrane should be cut so that when laid, the side and end laps are staggered.

Diagram and specifications of a typical two-layer roofing system inc. felt and underlay.

Diagram and specifications of a typical three-layer roofing system inc. felt and underlay.

Wickes High Performance Polyester System.

Diagram to help you identify roof parts; gable, ridge and eaves.

Fold and nail corners to make a neat appearance.

Overlapping sheets of cold applied roofing felt adhesive.

Cold applied roofing felt adhesive to finish the roof ridge.

For a professional finish, fix timbers strips to the gable ends.

For roofs with pitches above 20&deg;, lay a single layer of Wickes High Performance Polyester Underlay.

For roofs with pitches above 20&deg;, lay the single layer of Wickes High Performance Polyester Underlay.

Apply Wickes Shingles Detailing Strip 300mm wide. Allow 50mm for turnover.

Place one fixing nail 25mm from each end and one fixing nail directly above the centre line of each cut out.

For additional security, use Wickes High Performance Felt Lap Adhesive.

Working from the bottom corner, fix the first whole Shingle strip and continue with whole shingles.

Adjust the last few courses of shingles so that the ridge capping will adequately cover the top courses equally.

Adjust the last few courses of shingles so that the ridge capping will adequately cover the top courses equally.