Hatch
This is the roof hatch on The Borough Hall, Meridian House, on the corner of Royal Hill and Greenwich High Road in Greenwich, England. |
A hatch is an opening in a building (or other structure) that has been fitted with a cover that closes and opens. Generally, a hatch in a floor, wall or roof enables the passage of people or goods from one place to another. It may also be used to provide ventilation or to control moisture or temperature.
Some hatches may be installed for inspection or access purposes. Inspection hatches may make it easier to access, maintain and repair equipment without cutting holes in walls, ceilings or floors.
A roof hatch may be an opening installed in a flat roof. These hatches can be pre-fabricated, assembled and put in place prior to the installation of the roof. Waterproofing gaskets around the hatch can be used to protect against water penetration. Roof hatches may accommodate a ladder, so maintenance crews can access rooftop equipment. They may include smoke or fire safety devices to allow them to open if dangerous conditions occur.
In construction drawings, hatching styles are patterns used to represent different types of commonly used materials, objects and spaces.
See Standard hatching styles for drawings.
[edit] Related articles on Designing Buildings Wiki
Featured articles and news
A call for prevention and sensitive re-use.
The CIAT principal designer register
Providing assurance and verification of the capability and competence of registered ATs.
Building Safety recommendations and Northern Ireland
The NI roadmap to improving safety in high rise residential.
BSA residential sector competence standards guidance
BSAS 01:2024 Organisational Capability Management System Standard - Competence Assurance.
Specifying rendered external wall insulation for fire safety
How to interrogate the evidence provided to the specifier.
The benefits of writing articles for your organisation
How to create a profile for your organisation and publish for free.
No Falls Week. The importance of safe working at height
What to expect and what is on offer to avoid accidents.
Scottish Government action to reach net-zero targets
Retrofit expert group highlight critical actions needed.
A forward thinking, inclusive global community of members.
From engineered product life-spans, to their extension.
Circular economy in the built environment
A brief description from 2021. Where are we now?
CLC publishes domestic retrofit competency framework
Roadmap of Skills for net zero.
Understanding is key to conservation.
Open industry engagement survey seeks responses
Institutions and the importance of engagement.