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FREQUENTLY ASKED QUESTIONS

Quality assurance, Certification
Do Shadbolt doors comply with Building Regulations and British Standards?
Shadbolt doors have been extensively tested to relevant standards and we can supply doors to meet a very wide range of regulatory and performance requirements.
Under building regulations, doors have to comply with specified performance requirements which depend on the situation where the door is used.
British and European standards set test methods and classifications for door performance (fire, acoustics, durability etc).
For more details see Fire doors - Technical background
and Building Regulations (England and Wales) Approved Document B.

What is CE marking?
CE Marking is a Europe-wide system which gives the purchaser an assurance that a specific product is fit for purpose and is produced under quality-controlled conditions. CE marking for fire doorsets is expected to be introduced later in 2016, with CE marking of internal non-fire doorsets to follow.

Will Shadbolt products be CE marked?
CE marking will apply to an established range of doorsets, but will not be applicable to Shadbolt’s purpose-made products, which fall outside the constraints of CE marking. Shadbolt doors and doorset assemblies are covered by extensive testing and ongoing independent third party certification under the Exova BM TRADA Q-Mark scheme, accredited by UKAS (UK Accreditation Service), and as such will be fully acceptable under UK Building Regulations, without CE marking
For more details see CE Marking

Environment, sustainability
How environmentally friendly and sustainable are Shadbolt products?
Timber, our major raw material, is inherently renewable and sustainable; properly managed forests can provide a supply indefinitely. We operate an Environmental Management System certified as complying with ISO 14001, meaning we have systems to ensure we use materials from responsible suppliers.
For more details see Environment and Sustainability

How can you be sure of obtaining materials from sustainable sources?
Shadbolt participate in schemes to promote sustainable forest management, assured through third party certification. These include the Forest Stewardship Council FSC Mark scheme, and the Programme for Endorsement of Forest certification (PEFC).
Chain of Custody certificates ensure that timber is traceable through production, manufacture and incorporation in a finished building.
For more details see Environment and Sustainability

What are FSC and PEFC certification schemes?
The FSC (Forest Stewardship Council) and PEFC (Programme for Endorsement of Forest certification) schemes promote sustainable forest management, assured through third party certification.
For more details see Environment and Sustainability

What if no suitable certified timber is available?
Where any non-certified timber is used, we can provide written confirmation from our suppliers that the timber comes from a legal source and that no endangered timber species are used.

What is percentage certification, and why are some products not fully certified?
Sometimes there are insufficient supplies of suitable certified timbers available. In this case certification schemes allow percentage certification, where products may contain a specified proportion of non-certified materials.
For more details see Environment and Sustainability

Do your doors contain tropical hardwoods?
Tropical hardwoods may sometimes be used for veneers, where they are obtainable from sustainable sources. We buy only from known suppliers who can provide evidence of their timber sources.
For more details see Environment and Sustainability

What is EUTR? How does this apply to Shadbolt?
The EU Timber Regulations define the obligations of those trading in timber, and are designed to prevent illegally harvested timber from being placed on the EU market. Shadbolt can advise on these obligations where they apply to our customers.

Doors and doorsets
What is a doorset?
A doorset is a  complete engineered unit consisting of a door leaf ready hung in its frame and with all necessary components fitted such as hinges, door furniture, fire and smoke seals etc. (Door handles may be packed separately to avoid damage in transit).

Why should I choose doorsets rather than doors?
A doorset is a complete unit made under controlled conditions. Thus the performance of the installed door (durability, fire and smoke resistance, acoustic insulation etc) can be assured in a way that is not possible with doors assembled on site from separate components.

What is a ‘virtual’ doorset?
A virtual doorset is a new Shadbolt concept which aims to avoid problems which may occur on site due to common working practices. A virtual doorset is as complete and fully-finished as a conventional doorset. However, the frame is delivered in advance, with the door itself being delivered later, in both cases to suit the building programme.
For more details see Doorsets and Virtual Doorsets

Fire performance
Do Shadbolt products comply with European standards for fire testing?
Many of our doors have been tested to the European standard BS EN 1634-1 and can provide E30 or E60 fire resistance in a wide range of configurations and sizes. For more details see
ENcore doors and doorsets: Fire performance
Shadmaster doors and doorsets: Fire performance

Panels, wall linings
What is the significance of Class 0 and Class 1 ratings for walls and ceilings?
These are measurements using BS tests which indicate the speed at which flame travels across the surface of different materials. As a contribution to fire safety, building regulations restrict the flame spread ratings of wall and ceiling surfaces according to  building type and the location within the building.
For more details see Panels: Class 1 and Class 0: Performance

What is the difference between flame spread and fire resistance?
Flame spread is a measure of the speed at which a flame can spread over the surface of a wall or ceiling and is primarily relevant to lining panels.
Fire resistance measures the ability of a structural element such as a wall to resist the penetration and spread of fire. Where a fire-resisting wall contains a door the door must also provide fire resistance.
Building regulations control flame spread ratings and fire resistance in order to limit the spread of fire in a building to allow occupants more time to escape, and also to reduce structural damage. The requirements depend on building type and location within a building. Flame spread ratings and fire resistance periods are determined in accordance with British or European standard tests.
For more details of flame spread see Panels: Class 1 and Class 0: Performance
For more details of fire resistance see Fire doors - Technical background

Acoustic performance
What is the difference between sound insulation and sound absorption?
Sound insulation (or sound reduction) measures the resistance of a wall or door to the passage of sound. For example, a door might be required to have good sound insulation to avoid noise from a corridor causing disturbance in a study area, classroom, music room etc.
Sound absorption is a measure of the ability of a surface to absorb sound rather than reflect it. Some absorption in walls and ceilings is needed to avoid echoes, but too much absorption can produce a ‘dead’ effect . Controlled sound absorption is needed especially in areas such as classrooms, music rooms and auditoriums. For more information see:
Acoustic doors and doorsets
Acoustic wall linings

Durability and security
How do you assess the durability/security of Shadbolt doors?
We can offer doorset types which have been independently tested for durability under the BM TRADA Q-Mark doorset certification scheme and achieved the highest grading (Severe duty).
Shadbolt security doors have been independently and successfully tested against PAS (Product Assessment Specifications) 23 and 24.
For more details see:
ENcore doors and doorsets: Durability
ENcore doors and doorsets: Security

Accessibility
How do Shadbolt doors aid accessibility?
Shadbolt door construction allows wider doors with vision panels whilst maintaining performance. Powered opening and closing systems can be supplied if required to preserve accessibility as well as fire protection and acoustic insulation. For more details see Accessible doors

Spacesaver doors have an offset folding action with a small opening arc which means a wider doorway can be provided even in a restricted space. For more details see Spacesaver doors

Do Shadbolt doors comply with accessibility legislation?
Shadbolt doors can be purpose-made to meet accessibility requirements depending on where they are to be installed. For more details see Accessible doors

Finishes
What is the difference between different veneer cuts and different types of veneer matching?
The way in which veneers are cut from a log and matched on a door or panel allows a wide range of different aesthetic effects to be achieved from the same wood species.
For more details see Finishes: Veneers

Installation
Why do you stipulate indoor climate conditions when doors are installed?
Shadbolt doors are highly engineered products designed for internal use. Exposure to unsuitable conditions or to fluctuations of temperature and humidity in an unheated building may cause deterioration in appearance and loss of performance.
For more details see Sitework: Site conditions

Maintenance
Why is it necessary for doors to be regularly maintained?
The high performance of Shadbolt doors depends on a number of components including fire, smoke and acoustic seals, which in turn depend on accurate hanging of the door and latching where applicable; also on proper working of hold-open and self-closing devices. As with any piece of precision equipment, regular maintenance is needed to ensure that all elements continue to function correctly.

Specification clauses
Can you assist with producing door specifications?
Sample specification clauses are given in Downloads: Specification clauses
We can also provide door schedules at the appropriate stage in a project.

Shadbolt participate in the NBS Plus scheme which provides specification clauses for our products, see NBS Plus Specifications

Why can’t door specifications be simplified?
Most of our doors are purpose-made for specific projects and we offer a wide range of size and performance. In order to ensure performance and quality, each door variant must be specified precisely and completely. It is also essential to protect the specification from inappropriate substitutions. Standard specifications do not cover all possible variants.

Samples
Can you provide samples of door finishes/veneers?
See Online samples for an online guide to veneers available.
Actual samples can be provided for final selection at the appropriate stage in a project.