![]() ![]() Noggings to be fixed horizontally to avoid twisting of the restraint straps. Install HES or H strap to underside of solid noggings.Ensure the position of the straps coincides with the block bed joint.Straps to be installed at not more than 2m centres (or 1.25m where appropriate) along pitch of gable end.The downturn of strap is to be held tight against the cavity face of the inner leaf of blockwork.The bend length should be a minimum of 100mm and should be positioned at the centre of an uncut block or brick. Attach to timber members using a minimum of 8 no. 3.75 x 30mm square twist nails.Horizontal lateral restraint straps should be spaced not more than 2m centres and attached to at least 3 timber members through the use of noggings and packing.(See illustration for detail on measuring bend & twist dimensions). Example: Heavy strap that has an overall length of 1m, a bend at 10cm and a twist at 20cm.To order: Specify model series, overall length, bend (B) dimension and/or twist (T) dimension.Non standard straps are available to order. The lowest fixing should be located within 150mm of the bottom of the vertical strap. Where straps are fixed to masonry, hardened nails Ø4mm x 75mm long or wood screws into plastic plugs Ø5.5 x 50mm long should be used.Vertical restraint strapping should be at least 1m long.The bend length should be a minimum of 100mm and should be positioned at the centre of an uncut block or brick. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |