Does NHBC cover ventilation?
Both Building Regulations and NHBC require ventilation to be provided in roof spaces. In many pitched roofs, a ventilation slot is built in along two opposite eaves so that air can flow across the roof space.
What is Technical Requirement R3?
∎ N HBC Technical Requirement R3 requires all materials, products and building systems to be suitable for their intended purpose.
How many weep holes are in a m2?
Each opening should have at least two weep holes. Zurich Municipal: In localities of moderate exposure or worse, or where full cavity fill is used, cavity trays should be adequately drained through weep holes spaced at no more than 1 metre apart, with at least two per opening.
Is NHBC the same as building control?
NHBC Building Control Services (NHBC BCS) is an Approved Inspector, in operation since 1985, and is the largest single provider of building control.
Do new builds need trickle vents?
Ventilation – Part F All windows to be fitted in new builds and extensions will require trickle vents.
Is damp common in new builds?
However, new build houses are not entirely immune to damp. Condensation can occur in a new build home because of the amount of moisture that is used in the build process. Here we will take you through the best ways to prevent damp.
Are NHBC standards mandatory?
To offer NHBC warranty and insurance cover, you are required to build in accordance with the NHBC Technical Requirements, which are contained in the NHBC Standards and provide a benchmark for acceptable levels of design, material specification and workmanship for newly-built homes registered with NHBC.
What does NHBC standards stand for?
National House Building Council
National House Building Council (NHBC) Type. Supporting the house-building industry in improving the build quality of new homes for homebuyers, whilst providing warranty protection to consumers when required.
How many weep vents do I need?
two weep holes
Technical requirements Vents are required at 450mm intervals and each opening should have at least two weep holes.
What is the purpose of weep vents?
Weep vents provide essential ventilation for the internal wall cavity and drainage of water that may have entered the cavity through condensation, building damage or capillary action. Left unmaintained, weep holes can provide access for wasps and bees.
How can I find out if my property is covered by NHBC?
If you are not sure if your property is covered by an NHBC warranty, please email us at [email protected], with your full name, address, postcode and a daytime telephone number, and we will let you know. Alternatively, please call us on 0800 035 6422, press 0 and say ‘Customer Services’.
Is there an alternative to trickle vents?
There’s a very simple alternative to Trickle Vents – opening a window. It’s a good idea to open all the windows in the house for a few minutes every day (yes – even in winter!) to allow moist air to escape, and dry air to replace it. This is especially important in the bathroom and kitchen.
What is a weep vent used for in a house?
The Manthorpe G950 Weep Vent is used to drain lintels, cavity trays and to ventilate cavity walls. The product can be slotted between two bricks and mortared into position. It provides an unobtrusive ventilation or drainage point for the cavity behind. The vent has a baffled grille to prevent…
Will weep vents damage the render?
Trying to cause minimum damage to the render when installing the vents. Right, lets sort this out shall we. Weep vents are designed to divert water from the cavity to the external skin face. How does water get into the cavity I hear you ask? Well every wall tie and lintel is a bridge of the cavity and therefore can allow moisture/water ingress.
What are diamonddiamond weep® vents?
Diamond Weep®, the latest addition to the weep vent range provides improved drainage and self-cleaning due to the specialised diamond cross-section profile and robust mortar key thanks to upper and lower ribs along the outlet. Manthorpe’s range of weep vents can be used on both new-build and refurbishment projects.
Why choose Manthorpe weep vents?
Manthorpe’s range of weep vents can be used on both new-build and refurbishment projects. Our weep vents are entirely British manufactured, as are the majority of our products; proudly supporting British manufacturing and minimising risk in the supply chain and in your project schedules.