This Best Practice Design Guidance has been produced through the GRO Technical Committee and specifically by the GRO BioSolar Working Group, a WG consisting of GRO Manufacturer, Supplier and Contractor members with expertise in the field of Solar and Green roof systems.
This 10 page bulletin gives a detailed overview of selecting natural slates for roof coverings giving advice on selecting a slate, specifying conformity, using classifications and durability testing.
This five-page Technical Bulletin provides guidance on the general, performance and roof ability requirements of pitched roof underlays. It supplies advice on the application of the underlay, and the control of condensation.
This four page document provides definition and description of peg tiles, goes into the different types of peg tile, peg holes, sizes, roof pitches and headlaps, fittings, laths and restoration specifications.
This four page bulletin explains the different types of under coatings available for slates and tiles, including spray foams and issues associated with it.
This short Technical Bulletin explains how contractors can ensure that a project will satisfactorily meet requirements for wind and other loadings, as well as indicating where contractors may find themselves with design responsibility.
This Technical Bulletin gives advice on the tolerances required for composite sandwich panel systems which are fixed to a secondary steel frame (sheeting rails).
This eight page bulletin gives advice for slating and tiling on metal roof decks. It brings together conventional slate and tile roof covering methods, traditionally supported by timber roof structures, with the now established roof decking systems formed from roll formed metal sheet and sandwich panels, fixed to steel framed buildings.
This four-page Technical Bulletin describes graded battens in accordance with British Standards, including size and marking, and sets out measures to ensure that battens are of the correct standard and will not create a safety or performance issue when the roof is placed under dead, imposed and wind loads.
This technical bulletin gives guidance in using and specifying roofs covered by wooden shingles and shakes. It explains the terminology of the different types and the considerations to be taken when using them.
The aim of this document is to introduce a new performance standard for butyl strip sealants which will reassure specifiers and users that sealants, conforming to Building Regulations Approved Document L2, will be fit for the intended purpose and can be used with confidence.
Natural slates and other artificial double-lap slates do not require mortar bedding in the valleys, as there are robust dry details available with regards to metal lined valleys and proprietary valley liners.
This guidance on carrying out installations professionally and safely and the options available when installing solar components on all the different roof types.
This bulletin explains the position of lime mortar at the time of 2016 and that it may change at any time. It gives an overview of the types of lime and typical mixes and their application.
The bulletin provides best practice guidance on the installation of natural slates which are head and/or shoulder fixed, in particular Scottish slating where slates are fixed directly to sarking boards rather than to timber battens.