The pitched warm roof method of insulation has established itself very rapidly. With insulation fixed over the rafters using counterbattens to hold it in place, the whole of the loft are is kept warm and dry. The need for water tanks and pipes to be additionally insulated is no longer necessary.
By using the Target Fixings Skew Fast insulation fixings to fix the counterbattens over the insulation, the counterbattens effectively become the rafters. Tile or slate battens can be fixed back to the counterbattens in the standard, and accepted, manner - subject to the relevant timber codes.
With a very small effective core diameter the Grade 304 stainless steel Skew Fast can be used in timber widths of 30mm or below. The diameter does not increase with length, still allowing conformation with CP112:1972, something not possible with a conventional nail of equivalent length.