Hey Claude,
Couple of points to consider.
The promotional stuff shows two completely different tile types to yours, profiled concrete tiles and natural slate. In addition these are installed into a large roof slope which will also make the installation easier, I notice that your roof is...
Turn the tile over, the maufacturer will have their name on the back of the tile.
Colour looks like Marley Greystone, but Redland used to manufacture a similar colour.
Concrete interlocking tiles start at approx £6 / m2.
You'll need to consider the construction though. is the building traditional construction (i.e. rafters) or steel frame (i.e. purlins). It might cost more to create a structure onto which tiles can be fixed than to install sheeting if its...
Why not fix a bonding strip underneath the Bold Roll and the replacements (whether they be Derwent or Regent), you might need to cut the tiles at the roll so as to marry in at the same height.
Basically the question you need to ask yourself is this.
Do you want the manufacturer guarantee for the roof covering or not?
If not, fix it however you please.
The Forth was a roof tile maufactured by a company called Scotcem. This business closed in 2008. You may be a ble to find replacements in the area (Edinburgh) local to where the factory used to be.
Hope that this helps.
Redland Grovebury tiles are guaranteed to 15 degrees and visually will provide much the same appearance as your main roof.
This means you will be able to construct the pitched roof so as to be able to get a decent flashing detail at the top edge where it abuts the wall (needs 65mm minimum...
provided an adequate amount of ventilation is build into the roof it won't matter if the underlay is plastic, bituminous (1F) or high performance VPU.
BS recommends (assuming insulation is at ceiling level) 10,000 mm2/m at low level on either side of the roof and (if roof pitch is > 35...
Are really looking for a green roof, or do you want to reduce the energy used in your home?
Trying to take your questions one at a time.
Advantages - makes a contribution towards your energy needs which is, over a period of time, saving CO2 emmisions (can take up to 5 years to repay the...
why not speak to the technical departments of the manufacturers whose materials your roofer used?
In my experience most are very helpful when advising whether their products have been installed correctly and if they haven't will advise how it should have been done.
Anything below 10 degrees is technically a flat roof, no interlocking roof tiles will perform at this pitch (some tile effect sheeting will though). The problem is related to the tiles ability to shed the water landing on it. The lower the pitch the greater the risk of water overoming the...
I've been following this post with some interest and think I might be able to offer some worthwhile suggestions to help with finding a reputable roofing contractor in the area. These are companies I would be happy to have working on my own house.
Andrew Broster Roofing - Slyne, Lancaster...