In the Roblox sandbox game Bricklayer (developed by TB Software under the title ELECTRICITY Bricklayer), cement serves as the primary bonding agent used to anchor brick walls and prevent masonry from collapsing. When building structures, laying loose bricks without adhesive leaves them unstable and prone to toppling over when bumped or stacked too high. Applying cement locks adjacent blocks into a solid, immovable assembly.
Understanding how to control cement application, clean mortar lines, and combine bricks with other tools ensures your houses and walls remain stable without exceeding building boundaries.
How Cement Works in Bricklayer
Cement acts as a physical adhesive between construction materials. When you apply cement across a surface and press another brick on top, the game initiates a bond. After the cement sets, the brick is fixed firmly in place. Once this bond fully solidifies, you can no longer freely drag or reposition the block by hand.
Proper adhesion requires direct contact between the brick surfaces and the wet cement layer. If you build multiple tiers of walls without bonding lower courses, the weight and physics engine will cause unanchored or loose blocks to shift. According to the game's official Update 4.1 patch notes, unanchored parts despawn after 4 minutes if they are not properly anchored or secured into a build.
How to Place Bricks and Apply Cement Step-by-Step
Building clean, upright walls requires combining cement with alignment and snapping settings:
- Measure your foundation: Equip the measurement tool to mark out your wall boundaries before placing materials.
- Toggle snap settings: In your building settings, turn on snap. Setting the snap increment to 0.5, 1, or 2 studs forces bricks to line up squarely instead of resting at uneven angles.
- Lay the first row: Place your foundation bricks along the measured boundary in a straight line.
- Apply the cement: Select your cement tool and coat the top surface of the initial row. Video demonstrations show that a moderate amount across the contact points is sufficient; overloading the surface is unnecessary.
- Set the next course: Grab your next brick and orient it correctly. On PC, press R to turn, T to tilt, or Y to roll the piece. Lay it down across the joint in an alternating pattern to create a standard interlocking wall layout.
- Wait for attachment: Hold the block in place until the cement sets and physically locks the part to the foundation.
Cleaning Excess Cement with the Trowel
Messy mortar placement can leave uneven residue across brick faces. As introduced in Update 4.1, developer TB Software added cement cleaning functionality via a trowel, accessible directly through the cement tool interface.
If your mortar spreads beyond the edges of the wall joints or creates an uneven build, switch to the trowel mode within the cement tool to scrape off unwanted mortar. This feature allows builders to maintain clean external brickwork without having to demolish the entire structure. For full demolition of misplaced bricks or wood, the game also offers a Hammer game pass for 20 Robux.
Cement vs. Nails and Welding: When to Use Each Fastener
Bricklayer features several fastening systems tailored to specific construction materials. Cement is designed specifically for masonry blocks and cannot be used universally across all items.
| Fastening Method | Compatible Materials | Key Behavior |
|---|---|---|
| Cement | Standard bricks and custom bricks | Bonds stacked bricks together; cleanable using the trowel tool. |
| Nails | Wooden planks, drywall sections, and small windows | Secures items to existing surfaces; players can freeze parts (Z on PC) before nailing. Nail head sizes are adjustable as of Update 4.1. |
| Welding | Steel beams and metal components | Welds metal pieces together directly so they function as a single rigid frame. |
If you attempt to secure items like drywall panels or windows using only cement, they often fall over or fail to bond properly. For non-brick materials, freeze the part in position with Z and drive nails through the joint, or switch to the welding tool when joining structural steel beams.
Bricklayer PC Controls Reference
The official game controls for PC users allow precise placement before cementing parts together:
| Key Binding | Function | Application |
|---|---|---|
| R | Turn / Rotate | Adjusts horizontal rotation of held bricks and windows |
| T | Tilt | Tilts the held construction piece vertically |
| Y | Roll | Rolls the held item along its longitudinal axis |
| Z | Freeze | Locks a part in mid-air to prepare for nailing or welding |
| J | Wire | Pulls an electrical wire from switches to light bulbs |
Frequently Asked Questions
Why did my unanchored bricks disappear?
According to the Update 4.1 release notes from TB Software, unanchored parts in Bricklayer automatically despawn after 4 minutes if they have not been anchored to a permanent build. Make sure to cement your masonry or secure structural elements before leaving them unattended.
How do I remove excess cement from my walls?
Equip the cement tool and access the cement cleaning trowel feature. This tool scrapes away unwanted mortar spills from the sides of your bricks without destroying the wall.
Can I change the size of the bricks before cementing them?
Yes, but altering brick dimensions or textures requires the Custom Bricks game pass, which costs 40 Robux on the official Roblox store page. Players with the pass can adjust brick sizes and surface materials prior to placement.
Can cement be used to attach wooden boards or windows?
In player tests, wooden planks and small windows frequently detach or flip over when relying solely on cement. Instead, press Z to freeze the item against the brick wall, then equip nails from your tool menu to drive a mechanical fastener through the piece into the masonry.
