Types of Clashes

1. Ceiling clash with services [MEPFLS]:

Because of the ceiling’s clear height, it’s often seen services or circulations clash with the ceiling framing or ceiling itself. In order to accommodate proper clearance for services we need to drop ceiling height at the beginning of the design process.

2. Stem wall clash with Plumbing. Missing Sleeves:

If sleeves for Plumbing pipes are not provided before concreting of the stem wall, it will be required to core cut the concrete, which will impact both project cost & time.

3. Missing punch-outs in structural members in order to pass the services:

Missing punch for passing services in structural members might cause drilling of the member on site. An inexperienced worker who is unaware of basic code appliances might cause damage to the member or the whole panel.

4. Exhaust grill clash with the structural member:

This kind of clash cause issue with a series of structural or ceiling members. Members needed to be specially modified in order to host grills.

5. Door or window header clashing with HVAC duct:

Sometimes a duct passing through the top of a door or an exhaust at the top of a window causes a clash with its header. Usually, it ends up modifying the Door or window opening, changing of sill height, modification of the structure. It’s always better to check & modify everything early in the design process. Door & window is a long lead item that can cause a huge time impact on the project.

6. Hold Down/Anchorebolt clashes with structural members:

Hold down clash and constructibility are two important things to check. If it causes post-location change hence could be a reason for a complete structural design change for a location. Early detection saves us a lot of time in the project.

7. Diffuser clashing with ceiling framing:

Often it has been seen diffuser causes major ceiling modifications. Which is also helpful if detected and resolved early in the process.

8. Electric fixture clash with the structural member:

Electrical fixture position and placement have a huge impact on the interior. Sometimes existing structural member causes an issue with electrical fixtures causing the relocation of the fixture. Which causes compromisation with the interior look.

9. HVAC duct blocking other services:

Most common type of clash which gets resolved in inter-trade coordination. Early resolution can save a lot of time.

10. Receptacle clashing with structural members or other Architectural elements:

Receptacle class is one of the common things, If resolved early in the process can save a lot of rework.

11. Footing clashing sub-structure plumbing:

Often a sloping pipe clashes with existing footing. If rerouting is done early in the process it can save a lot of time and money. 

12. The slab stub-out is out of the wall:

If the slab stub-out does not match with panel punch-out it may cause an issue at the site. Often cursing and re-punching the panel, which might also cause unapproved damage to the panel.

13. Architectural element blocking receptacle:

It should always be checked whether none of the receptacles should be blocked by any of the furniture.

14. Missing punchout in blocking:

Any structural blocking added later in the process should always have the required punchout for passing the services.

15. Missing space on the ceiling for mechanical equipment:

Sometimes mechanical equipment required space not available on top of the ceiling. The ceiling’s clear height always needed to be checked with mechanical equipment clearance on top of it.

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