Plain-English definitions of the roofing terms Coventry homeowners come across most often — from nail sickness to lead flashing. Call 0247 798 1271 for a free survey.
The progressive corrosion of galvanised steel roofing nails, causing tiles to lose their grip and slip. It affects most of Coventry’s post-war estates built between 1945 and 1980, where the original fixing nails are now at or beyond their 50–70 year service life. It is the single most common cause of re-roofing across CV postcodes.
Lead sheeting that waterproofs the junction between a roof and a vertical feature such as a chimney, party wall or valley. On Coventry’s Victorian properties, original flashings 100+ years old fail through decades of thermal movement. Correct replacement uses code 4 lead for chimneys and code 5 for valleys under BS 6915.
The tiles capping the apex (ridge) and sloping external angles (hips) of a pitched roof, traditionally bedded in mortar. On Coventry’s 1930s hipped semis these mortar beds are exposed on multiple faces and erode faster than elsewhere, making ridge and hip re-bedding one of the most frequent repairs in the area.
Glass Reinforced Polyester — a flat roofing system applied as glass matting and resin that cures to a single seamless waterproof surface with no joints to fail. It has a design life of 25+ years, far outlasting felt, and is the primary flat roof specification we use on Coventry extensions and garages.
A vapour-permeable underlay fitted beneath roof tiles that allows water vapour to escape the roof space while keeping rainwater out. It significantly reduces condensation compared to the traditional bitumen felt found on older Coventry properties, and is specified as standard on every re-roof we carry out across CV postcodes.
A free inspection assessing the extent of fixing-nail corrosion across a roof to determine whether targeted repair or full re-roofing is the cost-effective solution. Because Coventry’s post-war estate housing shares a construction era, nail sickness tends to advance across whole streets at similar rates, making early assessment valuable.
The fascia is the vertical board at the eaves carrying the guttering; the soffit is the horizontal board sealing the rafter void beneath it. They are replaced together, almost always in uPVC on Coventry properties. Ventilated soffit is essential to maintain the 25mm eaves airflow that prevents loft condensation and timber rot.
Membership of the National Federation of Roofing Contractors, the UK’s principal roofing trade body founded in 1892. Membership requires demonstrated competence, minimum £2m public liability insurance and adherence to a Code of Practice. It can be verified directly at nfrc.co.uk and provides a dispute-resolution route for Coventry homeowners.
Free surveys across all CV postcodes. Written quotes, 10-year guarantee, NFRC registered.
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