Chapter 7 1 this chapter gives guidance on meeting the technical requirements and recommendations for flat roofs and balconies and pitched roofs with a fully supported continuous weatherproof membrane.
Nhbc standards chapter 7 1 flat roofs and balconies.
Strength and movement of masonry balcony walls.
Rainwater disposal from roofs and balconies 6m2 or less in area should be considered.
The upper trafficked surface of the balcony.
A flat roof should be regarded as having a maximum slope of 10 from the horizontal decking or deck is the substrate of a flat roof or the upper surface of a balcony.
Where run off may cause damage or staining to a façade or damage to landscaping then rainwater gutters and downpipes should be provided.
Durability and fixing of balustrading and guard rails.
Updated chapter 6 6 staircases this chapter has been fully updated to make it clearer and align with industry guidance revised chapter 9 1 a consistent approach to finishes includes new guidance as well as a review of the existing tolerances to ensure they are appropriate and meet the reasonable expectations of homeowners.
Open slatted balcony decking should drain away from the home.
Balcony drainage timber balconies and terraces revised october 2018 nhbc standards chapter 7 2 pitched roofs.
7 1 3 flat roof and balcony design flat roofs and balconies shall support and transmit loads safely to the structure.
The details in appendix 7 1 a are intended to be a guide and may vary depending on the individual manufacturer s system.
Insulated above the deck.
The cumulative effect of water discharging from multiple balconies in vertical alignment should be taken into account.
Intensive and extensive green roofs are shown in appendix 7 1 a.
Falls flat roofs and balconies should.
Design that follows the guidance below will be acceptable for both flat roofs and balconies.
Diagonal bracing to double hipped roof plasterboard fire resisting ceiling in contact with single leaf masonry use of nail guns for fixing trussed rafter bracing.
Nhbc standards chapter 7 1 flat roofs and balconies.
Be produced by an engineer in accordance with technical requirement r5 and be in accordance with bs en 1991 1 1 bs en 1991 1 3 and bs en 1991 1 4.
Balconies and flat roofs to which persons have regular access other than for maintenance shall be adequately guarded to minimise the risk of falling.
Flat roofs and balconies 7 1 7 1 11 accessible thresholds accessible thresholds shall be protected by adequate weatherproofing and drainage.
The structural design of flat roofs and balconies should.
Systems may be used at a greater pitch where they meet the requirements of this chapter and materials are adequately held in place.
For the purposes of this chapter.
A roof with a maximum slope of 10 from the horizontal.
