All roof tiles manufactured over the past decade come with a 50 Year structural performance guarantee that the tiles will not warp, become porous, corrode or be affected by salt or frost.

Roof tiles can be layed at a minimum roof pitch of 15 degrees; however, consideration needs to be given to the rafter length, wind speed, terrain category and the tiles profile.

A good quality Welsh slate roof can last for generations to come, which can be hundreds of years. It is often the type of roofing covering that will determine the length of life, but most manufacturers give long guarantees on their products.

The flat concrete roof tile (a Marley Modern or Russell Grampian, for instance) tends to be the most economical type of roof covering around.

The type of roof coverings available to you may be restricted to your site and the roof design, but we will happily propose a number of alternatives for you to consider, one of which may simply be to repair the current roof you have.

The only hidden extras are those which could be genuinely hidden from all of us. In the case of old buildings where the plasterboards are attached to the underside of the rafters, it is difficult it determine the state of the rafters beneath them. Often it is not expensive to replace a few of the structural timbers that have rotted, but it is something that you do need bear in mind as a possible additional cost.

Generally speaking, if a roof has not been leaking, the timbers do tend to be in a good state. Other possible problems are infestation of beetle or woodworm but this is something we can treat and, in most cases the roof requires very little or no additional work.

Yes, the color of your concrete tiles will fade and weather over time. This coating is purely decorative, and plays no role in any protective or waterproofing function. Over several years, the color coating of your tiles may take on a more subdued, matt appearance because of the effects of air pollution and powerful UV rays from the sun. This change in appearance has no effect on the tiles performance or its structural adequacy.

Concrete roof tiles like all concrete products become stronger and less porous over time, provided they were manufactured to the appropriate Standard.

In some climates, moss and lichen can grow on your tiles. They will not affect your tiles in any way, and can add character to your roof. However, if you prefer the clean lines of your tiles, both moss and lichen can be easily removed with high pressure water jet cleaning or by using other commercially available cleaning products. (Always consider the environment when using chemical products)

Leaks are most often confined to small areas and usually occur as a result of one or more of the following problems:

Blocked gutters (including valley gutters) and downpipes. These should be cleaned out.

Cracked or broken cement mortar bedding to the ridge or hip capping. Capping should be re-bedded or re-pointed.

Cracked or broken roof tiles. Individual roof tiles should be replaced.

Roof tiles displaced. Displaced tiles should be put back in their proper position.

Blocked drainage channels under the 'sidelaps' of individual tiles. Any buildup of dirt or debris should be removed.

Flashings blocked, damaged or displaced. These problems should be corrected.

If your roof has a leak, it is always best to employ an expert tradesperson to undertake the work for you, as accessing and walking on roofs can be dangerous.