SLATE AND TILED PITCHED ROOF REPAIR AND REPLACEMENT

The roof valley is the segment where the roof changes direction or where a dormer or bay window is installed. Simply put, it is the portion of the roof where two slopes meet. It is covered by different types of materials. Metals like lead, copper, aluminum and zinc are most commonly used. The choice of roof valley material depends on the type of the roof and the primary roofing material.Get A Quote

The roof valley is a very important part of the roof that determines to a large extent the integrity of the roof. Depending on where it is positioned and the angle, the valley can carry large volumes of water when it rains. Any slight damage could lead to serious leakages.

This calls for accurate installation and so it is best to use the services of a skilled and experienced roofer. Also, roofs should be inspected twice annually. With this, the roof valleys will be maintained in good condition and the integrity of the entire roof preserved.

As Seen in the image of a replacement valley install.

Types of lead and copper roof valleys

Whether it is a lead or copper roof valley, there are two main valley design used in roofing.

Closed

For closed roof valleys, the gap is covered by the primary roofing material or shingles. Shingles are installed across the joints of the intersecting planes.View Testimonials

Open

This is a roof valley that is not covered by the primary roofing material. The valley is then filled with a self-adhering layer of ice and water shield then overlain with a metal, usually lead or copper.Get A Quote

Testimonials

Roofing Experts & Co Ltd

4.8

Based on 176 reviews

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paul p Kelly

13:30 19 Sep 26

Supplied and fitted five Velux windows, replaced some gutters, cleaned other gutters, checked roof tiles. Supplied and fitted verge gable system. Removed and replaced existing ridge tiles. Excellent service and communication from start to finish. From the moment Dave called to review the work we wanted done to Graham who called to survey the work to be done, to the day of installation when the crew turned up exactly at the time previously given to us, everything was so professional and of the highest standard. Had to wait a number of weeks after we paid a small deposit for the work to be done but it was well worth it.
Paul & Ann
Blanchardstown

Paul Brady

17:14 01 Sep 26

Excellent to deal with. Always attended on the dates/times promised (or even earlier). Very professional. The finished work was great, the place was left really tidy afterwards and the work was done so quickly.

Breege MacDermott

13:08 19 Aug 26

I found the Roofing Experts company very efficient and very nice to deal with. They did our kitchen flat roof with no fuss, and tidied up after. I would recommend them without hesitation. After they had finished they sent photos of the work showing it in progress and the completed work.

Paul Cullen

16:34 14 Aug 26

After eighteen years the existing mineral felt roof on our kitchen extension had deteriorated badly. Having checked out several firms, we were satisfied that Roofing Experts provided the most comprehensive analysis of what needed to be done to put things right at a good price. That confidence was borne out by the skill and efficiency of the team that completed the work. All of the works, and a thorough clean up afterwards, was done without inconvenience to the household.

Aoife Kane

09:32 06 Aug 26

I found Roofing Experts to be highly professional throughout our interactions from initial consultation through to completion of the job. The whole process took a little longer than I initially expected but I feel this is testament to how busy they are due to the high quality of their workmanship. The crew who carried out the repairs for us were friendly and did a great job tidying up after the works.
They repaired 2 velux skylights and partially reflashed and recapped two chimneys including waterproof coating once finished.

Niall Higgins

13:25 24 Jul 26

Very prompt response to urgent request. Work carried very efficiently. Reassurance that job was done properly with pre and post photographic evidence. I would highly recommend this company to anyone.

John O'Dea

17:56 14 Jul 26

Very professional, organised & friendly in all our dealings with them.

Brendan Toomey

09:59 03 Jul 26

Roofing Experts & Co Ltd replaced a Velux roof window in our residence in Rathfarnham lately. The window had been there for many years and had become faulty.
We were very pleased with the way this job was done, including preliminary survey, cost, timeliness and punctuality, and tidiness. We would have no hesitation in employing Roofing Experts again and strongly recommend them for the same or similar work.