Weight: Clad over solutions can be too heavy for the current frames of an old conservatory, due to the fact they use timber, insulation materials and tiles. Old conservatories need a roof that is lightweight and the lightest solid roofs come in at around 31KG/M ².
Tip: Remember to check with your installer what the unit weight of the new roof per Sq.M is.
Fire Safety: To meet current fire safety regulations, a structure must be tested as a whole. Clad over systems therefore do not meet the regulations because they won’t have been fire tested as a complete roof structure. As the structure varies per household, only individual components may have been tested. Solid roofs must be classified as AC, AB or AA in accordance with BS476-3.
Tip: We encourage you to ask to see the fire safety certificate of the entire roof system before you go ahead with the installation.
Building Regulations: Due to their low thermal value, clad over systems do not generally get approval from Building Regulations. This shouldn’t be confused with planning permission, as this is necessary in most instances. If you are making any changes to any structure you need to notify Building Control, and this includes replacing a glass or polycarbonate conservatory roof with a solid roof. If your new roof is structurally sound, you will get approval.
Tip: You should check that local Building Control has been informed before the conversion starts. Also, obtain a Building Regulations ‘Final’ Certificate and file it in a safe place.