Slate Roofing and Slate Repairs in Malahide

Materials and work covered

We work with natural slate and fibre-cement slate. Natural slate is a split stone and varies in thickness and texture; fibre-cement slate is manufactured to consistent dimensions and is lighter. They are fixed and detailed differently, and they look different on a roof, so replacements are matched to the existing material and size wherever possible.

Slate work can range from replacing individual cracked or slipped slates to renewing ridges, hips and valleys, re-slating a slope or re-covering a whole roof. The scope depends on how widespread the problem is and what condition the fixings and battens are in.

Natural slate and fibre-cement slate are not interchangeable

From the ground the two can look similar, but natural slate is generally heavier, varies slate to slate and weathers differently from fibre-cement. Replacing a single natural slate with fibre-cement, or the reverse, can stand out and may not sit correctly because thickness and size differ.

Where the original slate can be matched, repairs blend in. Where it cannot, alternatives are discussed with their appearance and fit explained. When re-slating, the choice between the two is a decision about weight, appearance, budget and the roof's pitch and structure rather than a simple upgrade.

Why slates crack, slip or go missing

Slates are held by nails, hooks or other fixings into battens. When fixings corrode or battens deteriorate, slates can slide out of position even though the slate itself is sound. A slate can also crack from impact, from someone walking on the roof or from movement in the roof.

One slipped slate is usually a repair. Several slipped slates across different parts of a slope point towards a wider fixing problem, and the assessment should say whether more than the visible slates is affected.

For what you can safely note from the ground, read slipped slates and broken tiles.

Ridges, hips, valleys and abutments

Many leaks on slate roofs come from the details rather than the slates. Ridge and hip pieces can loosen if their bedding or fixings fail; valleys carry concentrated water and depend on their lining; abutments against walls and chimneys rely on flashing.

These details are assessed alongside the slating so a repair does not replace sound slates while leaving the actual entry point untouched.

For valley and abutment work, see lead flashing and valley repairs.

Repairing individual slates or re-slating

Individual repairs suit a roof where the fixings and battens are largely sound and failures are isolated. Re-slating a slope or the whole roof becomes worth considering when slipped slates recur in different areas, fixings are failing widely or earlier repairs have used mismatched materials that keep giving way.

Re-slating involves stripping the slates and usually renewing battens, underlay and fixings. Sound natural slate may sometimes be salvaged and reused, depending on its condition; this is assessed rather than promised. The quotation should state which slopes are included and how retained and new areas meet.

Where a full replacement is under discussion, see re-roofing in Malahide.

What sits beneath the slates

Underneath the slates are battens and, on most roofs, an underlay. If the underlay has deteriorated or there is none, minor slate problems can let water through more readily. This cannot always be confirmed from outside and may only be clear once slates are lifted.

You do not need to enter the roof space to look for evidence. Tell us what you have noticed indoors, such as staining or drips. Where lifting slates reveals concealed damage outside the agreed scope, its extent and the proposed additional work should be explained and authorised before proceeding.

Arranging slate roof work in Malahide

We cover Malahide from Blanchardstown. When you get in touch, mention whether slates have slipped or fallen, where any leak shows, whether the roof has been repaired before and anything you know about the slate type. Safe ground-level photographs help but are not required.

The written quotation should identify the slate type and size, how many slates or which areas are involved, any detail work and exclusions. Price follows that assessed scope.

Frequently asked questions

Can one slipped slate be refixed without disturbing others?

Usually, yes. Individual slates can be refixed or replaced using methods suited to the slate type. If the fixings around it are also failing, the assessment will say so.

Should I replace natural slate with fibre-cement?

For repairs, matching the existing material is usually best. For re-slating, either can be considered, but weight, appearance and the roof's suitability should be weighed rather than assuming one is better.

Can old slates be reused?

Sound natural slate can sometimes be salvaged during re-slating, depending on its condition once lifted. Reuse is assessed rather than guaranteed, and any shortfall is made up with suitable matching slate.

Why are slates slipping in several places?

Widespread slipping often points to corroded fixings or deteriorated battens rather than individual damaged slates. An assessment explains whether a wider repair or re-slating is warranted.

Is the leak always from a slate?

No. Ridges, hips, valleys and flashings at walls and chimneys are common entry points on slate roofs. The details are checked alongside the slating.

Request a Roofing Quote for Slate Roofing & Repairs in Malahide

Send Emerald Isle Roofers Dublin your details and a short description of the work required.

Emergency roofing: 083 158 8431