Stove Fitter's Warehouse offer a full Twin Wall Design Service with all designs prepared within our Twin Wall Design Studio. Contact us for further details (firstname.lastname@example.org).
Duraflue Twin Wall was launched to the market during 2014 and, due to its high quality and innovative design, is already a favourite amongst professional stove fitters.
Nulead is a simple and effective lead base with flexible top. This is the one I would fit on my house (Julian Patrick author of Stove Fitter's Manual). It is suited to all roof tiles but particularly suited to tiles that are not flat (e.g. Roman tiles or concrete tiles) but
A cheaper choice is the rubber aluminium flashing (ideal for flatter tiles such as slate). Search "rubber aluminium flashing" in this website.