Check out the Asbestos Essentials book available free from HSE Website. You can do this yourself, being mindful of the fragile nature of the material and all work at height issues. Damp down, avoid breaking and promptly double-wrap in 1000 gauge polythene - that's it in a nutshell. Also contact your local authority to see if and where they will accept asbestos cement sheets - many do. Strictly speaking, chrysotile is the fibre, the material is (presumably!) Asbestos Cement - usually determined by the lab by virtue of how much water it absorbs in a prescribed lab. test.

Alan, You can remove yourself as long as you satisfy the requirements of Asbestos Essentials A9 to A16, A35, A36. This info is easily got from the HSE interweb. The waste material will require a licensed carrier and a licensed tip to carry out disposal procedures. Asbestos being left in-situ is the safest (and most ecomomical) option provided it is intact and managed on an ongoing basis. Even if you decide to overclad it it can be managed relatively easily by virtue of the fact you know what it is and where it is. Look at HSG264 Asbestos: The survey guide for mor practical info. Overcladding will involve physical disturbance so be careful and make sure the plan of work complies with CAR 2006. Drilling of any ACM is to be avoided wherever possible. Be aware that drilling or any other activity that results in the work being anything other than 'sporadic or low intensity' will require a licensed removal contractor to be used. Another option is to coat the AC roofing, this should be cheaper than overcladding and will not involve the same levels of physical disturbance. I suppose you will be considering aesthetics of the building so you have decide how you would like the finished building to look. Gerry