If your roof is showing signs of trouble in Braintree, acting early is the difference between a small repair bill and a much larger one.
Call any time. Calls are answered day and night and passed straight to our roofers.
By the time water appears on your ceiling, it has usually been travelling through your roof structure for a while. The entry point and the damp patch on your plasterboard are rarely in the same place. A thorough inspection works from the outside in, tracing the water back to where it is actually getting in rather than just treating where it shows.
Haverhill Roofers covers Braintree and the surrounding area, including villages such as Halstead, Clare, and Steeple Bumpstead. We carry out roof repairs on pitched and flat roofs across the region, matching existing tiles and slates wherever we can so the repair does not stand out.
Slipped or missing tiles are the most visible problem. A single tile out of position leaves the underlayer exposed, and in wet weather water finds its way through quickly. On older roofs, the nibs that hook tiles onto the batten can rot or snap, causing tiles to slide without obvious damage to the tile itself.
Cracked or broken slates are a similar issue. Natural slate is durable but it does delaminate over time, especially on roofs that are several decades old. When a slate splits along its grain, it no longer sheds water properly. One cracked slate is a repair job; a run of them may point to a roof approaching the end of its life.
Ridge tiles are a common source of leaks that homeowners do not immediately suspect. The mortar bedding that holds ridge tiles in place softens and cracks over years of freeze-thaw cycles and thermal movement. When the mortar fails, the ridge tile sits loose and water tracks down underneath it. You might not see a cracked ridge tile from the ground, but you may notice moss building up along the ridge line or, eventually, damp in the top of a loft wall.
Lead flashing around chimney stacks, dormers, skylights and where a roof meets a wall is one of the most frequent causes of leaks. Lead is long-lasting when fitted properly, but it does move with temperature changes. Over time, the pointing that seals the top edge of the flashing into the brickwork mortar joint can pull away, leaving a gap water runs straight into.
On older properties, original lead flashings may be thin or poorly lapped. Sometimes a previous repair has used a mastic sealant as a short-term fix, and once that sealant cracks or peels, the underlying problem remains. A proper repair re-points the flashing into the joint with lead wedges and fresh mortar, rather than just applying another layer of sealant on top.
Step flashings along the sides of chimneys and dormers can also lift at individual steps. Each step piece needs to overlap the one below by a set amount; if any have corroded or been dislodged, the overlap is broken and water gets in at that point specifically.
Flat roofs on extensions, garages and bay windows have their own set of signals. Pooling water after rain is the most obvious. Some ponding on a felt flat roof is normal immediately after rain, but if it is still sitting there 24 to 48 hours later, the falls are not working as they should and the felt is under constant pressure.
Blistering on a felt surface means the layers have separated and air or moisture is trapped beneath. Once a blister bursts, the exposed felt deteriorates quickly. Cracks along seams, especially at the edges and around upstands where the roof meets the wall, are another sign that the membrane is under stress.
EPDM rubber flat roofs are more resistant to these problems but they are not immune. Seams can lift, particularly around outlets and penetrations, and the adhesive at the edges can dry out and pull away from the fascia. A repair on EPDM involves cleaning the area, applying a primer and using a purpose-made EPDM seam tape or liquid adhesive, not ordinary contact adhesive.
Internal signs of a roof problem are worth taking seriously even when no obvious tile or slate is missing.
Daylight coming through does not always mean a tile is missing; it can mean the mortar fillet under a ridge or hip tile has cracked open. Wet rafters are more serious because prolonged dampness leads to rot, and a rotten rafter changes a repair job into a partial rebuild.
Age is the most straightforward cause. Mortar, felt underlays and older tile nibs all have a lifespan. On a roof that is 30 or 40 years old, several things may be reaching the end of their useful life at the same time.
Thermal movement is underestimated. A roof heats up in summer sun and contracts on cold nights. Over many cycles, this movement works mortar joints loose and can crack rigid materials. It is why ridge and hip tiles on a south-facing pitch often need attention before the rest of the roof shows problems.
Vegetation is a slow but steady cause of damage. Moss and lichen hold moisture against the surface and can physically lift tiles as their root systems grow into mortar joints. On flat roofs, leaves and debris block outlets and create the ponding conditions that shorten felt life significantly.
Poor previous repairs are a frequent hidden cause. A bodged repair with the wrong materials, or one that sealed one entry point but left others open, can mean water has been working its way in via a different route for years before it becomes visible internally.
A reliable roof repair starts with a full inspection of the affected area and the surrounding roof surface, not just the obvious damage. Slipped tiles are re-hung on the batten and, where nibs have failed, clipped or re-pointed at the head. Cracked slates are replaced like-for-like using matching natural or fibre cement slate, fixed with copper or stainless clips.
Re-bedding and re-pointing ridge tiles involves raking out failed mortar, cleaning the tile surfaces and re-bedding with a flexible mortar or purpose-made pointing compound. Hard sand-and-cement mixes crack again quickly because they cannot move with the roof; a mortar with some flexibility lasts significantly longer.
For flashing repairs, the approach depends on what is there. Lead that is in reasonable condition is re-dressed and re-pointed. Flashing that has corroded or is too thin is replaced in full, cut and dressed to the correct profile for the pitch and detail.
If you are in Braintree or the surrounding area and you have spotted any of the signs described above, call Haverhill Roofers to arrange a roof survey. We will tell you exactly what is causing the problem and what it will take to fix it properly.
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Call any time. Calls are answered day and night and passed straight to our roofers.
