GRP DOMES - GRP FOR CONSTRUCTION IJF Developments Ltd have excellent experience in pattern, manufacture and installation of GRP Domes covering all of the UK. The Domes are manufactured in segments with precise design tooling. Numerous finishes can be acheived i.e, matt, gloss and textured. All colours available BS or Ral Numbers. Any design can be acheived from hemispherical to minaret, working from architects and contractors drawings giving the highest possible standard.