Timloc Eaves Comb Filler 1m x 22mm (L x W) Black is an essential product, which keeps vermin and birds out of the roof space. It satisfies the NHBC requirements and can be easily fitted to the roofing surface. Comb filler is made up of injection moulded in polypropylene material which is totally resistant to decay. This product ensures good quality and high performance of the product.