Every rule your project must meet, found for you.

NI-wide·Technical Booklet C Site Preparation and Resistance to Contaminants and Moisture

It is the view of the Department that the requirements of regulation 28 will be met if the floors, walls and roofs are constructed to protect the building and secure the health and safety of persons i

NI-wide·Technical Booklet C Site Preparation and Resistance to Contaminants and Moisture

In this Technical Booklet the following definitions apply – Contaminant – is defined in regulation 25 in Part C of the Building Regulations. Drain – is defined in regulation 2 in Part A of the Buildin

NI-wide·Technical Booklet C Site Preparation and Resistance to Contaminants and Moisture

Vegetable matter such as turf and roots should be removed from the ground to be covered by the building at least to a depth to prevent later growth. The harmful effect that vegetation roots may have o

NI-wide·Technical Booklet C Site Preparation and Resistance to Contaminants and Moisture

DPM above or below the concrete or insulation, and continuous with the damp proof courses in walls, piers and the like. If the ground could contain water soluble sulfates, or there is any risk that su

NI-wide·Technical Booklet C Site Preparation and Resistance to Contaminants and Moisture

with a ventilated air space measuring at least 75 mm from the ground cover to the underside of any wall plates and at least 150 mm to the underside of the suspended timber floor (or insulation if prov

NI-wide·Technical Booklet C Site Preparation and Resistance to Contaminants and Moisture

Any suspended floor of precast or in situ concrete, including beam and block floors, next to the ground should meet the requirement to resist the passage of moisture from the ground if it will adequat

NI-wide·Technical Booklet C Site Preparation and Resistance to Contaminants and Moisture

The openings should be not less than either 1500 mm2/m run of external wall or 500 mm2/m2 of floor area, whichever gives the greater opening area.

NI-wide·Technical Booklet C Site Preparation and Resistance to Contaminants and Moisture

damp proof course of bituminous material, polyethylene, engineering bricks or slates in cement mortar or any other material that will prevent the passage of moisture. The damp proof course should be c

NI-wide·Technical Booklet C Site Preparation and Resistance to Contaminants and Moisture

As well as resisting the passage of moisture from the ground, an external wall should give protection against precipitation. This protection can be given by damp proof courses, trays and flashings (se

NI-wide·Technical Booklet C Site Preparation and Resistance to Contaminants and Moisture

An external solid wall in conditions of "severe exposure" should be constructed with – (a) brickwork or stonework at least 328 mm thick, dense aggregate concrete blockwork at least 250 mm thick, or li

NI-wide·Technical Booklet C Site Preparation and Resistance to Contaminants and Moisture

An external solid wall in conditions of "very severe exposure" should be protected by external impervious cladding.

NI-wide·Technical Booklet C Site Preparation and Resistance to Contaminants and Moisture

A full or partial fill insulating material may be placed in the cavity between the outer leaf and an inner leaf of masonry subject to the following conditions – (a) the suitability of a wall for insta

NI-wide·Technical Booklet C Site Preparation and Resistance to Contaminants and Moisture

Damp proof courses should be provided to direct moisture towards the outside – (a) where the downward flow of moisture would be interrupted at an obstruction, e.g. at a lintel (see Diagram 6.3(b)); (b