© Pyrford Homes Ltd & Pyrford Properties Ltd 2011 Click to return to the home page Click for a selection of house builds Click for a selection of new build properties Click for a selection of commercial projects Click for a selection of extensions and conversions Click to see some of our challenges Click to go to contact and about details Click to see our award and news page Following excavation and installation of foundations, bricklayers erect cavity walls that consist of an inner and outer skin. The inner skin is the main structural element, which supports internal floors and the roof structure. It is constructed using concrete blocks laid on beds of sand and cement mortar. The outer skin is the first line of protection against the elements and provides the aesthetic element to the structure. It is constructed using brick, stone or block work, which can take a number of finishes. The two skins are connected by steel wall ties and separated by a cavity that is partially or fully filled with insulation. Internal floors can be constructed using timber joists, composite timber I beams, or one of the pre-cast concrete systems available. The roof is usually traditional cut timber or prefabricated truss construction. Once the roof is completed and the windows and doors are fitted, the building is watertight the internal trades can get underway. The internal face of the blockwork can take a range of finishes including ‘dot and dab’ plasterboard and wet plaster. Traditional construction The prefered choice in England and Wales Kilrenny project Project details       Traditional build using Oak timber window frames and conservatory 07860 148251 01252 794647 Kilrenny - a fine example