Black Iron Cap 1 like

Steel fitting with female threads which seals the end of a pipe

Blackboard1 like

Panel or board with a smooth dark surface to writing on using chalk

Blacktop 0 likes

Asphaltic concrete paving

Blade1 like

The flat cutting edge of a knife, saw, or other tool or weapon.

Blanc Fixe 0 likes

Artificially manufactured barium sulphate; an extender pigment

Blanket Insulation1 like

Thermal insulating material made of fibrous glass or mineral wool, at times with paper or foil surfacing, formed in batts or rolls

Blanket Mortgage 0 likes

Single trust deed or mortgage that covers two or more parcels of real property

Blankets 0 likes

Fiber–glass or rock–wool insulation in long rolls 15 inch or 23 inch wide

Blast Angle 0 likes

Angle of sand blasting nozzle with reference to surface

Blast Cleaning 0 likes

Cleaning with propelled abrasives

Blast Freezer1 like

Low temperature evaporator using a fan to force air quickly over the evaporator surface

Blast Furnace 1 like

Smelting furnace in which compressed hot air is driven

Blast Furnace Slag 0 likes

Non-metallic waste product used both in the manufacture of portland blast furnace slag cement and as an aggregate for lightweight concrete

Bleach1 like

Removes color and stains

Bleacher 1 like

Outdoor tiered stand of benches for seating at a sports center

Bleaching 1 like

Restore discolored or stained wood to its normal color or lighten with bleaching agents

Bleb 0 likes

Small blister or bubble

Bleed-Valve1 like

Valve with a small opening inside that allows a minimum fluid flow when valve is closed

Bleeder Gun 0 likes

Spray gun with no air valve; trigger controls fluid flow

Bleeding 0 likes

Upward motion of asphalt in an asphalt pavement producing a film of asphalt on the surface

Discoloration usually at a joint on a finished wall or ceiling in gypsum board

Penetration of color from the underlying surface; seeping of a stain or lower coat through the top coat, ruining the appearance of the top coat

The draining or loosening of saturants from the roofing material

When coloring material from the wood or undercoat works into succeeding coats and imparts to them a certain amount of color; see Extractive Bleeding.

Slowly reducing the pressure of liquid or gas from a system or cylinder by slightly opening a valve

Bleeding Stain 1 like

Stain which moves through coats of finishing materials

Blend 0 likes

Mix or make homogeneous

Blending 1 like

Mixing a color with another so the colors mix or merge gradually

Blind1 like

Panel, shade, shutter, or screen mounted on a window to block out light, provide protection, insulate or serve as decoration

Blind Header 0 likes

A concealed header in the interior of a wall not appearing on the faces

Blind Nailing 0 likes

Attaching boards to framing or sheathing with nails driven through the edge of each piece so they are hidden by the next board

Nailing the back portion of a roofing ply so the nails will be hidden by the next ply of roofing

Blind Stop 0 likes

Rectangular wood molding in a window assembly that receives the window screen frame

Blind Story 0 likes

Building story without windows

Blind Vent 0 likes

Ineffectual vent in a wall with the appearance of a vent but does not function as a vent

Blinding 1 like

Compacting soil immediately over a tile drain to limit its tendency to move into the tile

Blister 0 likes

Raised sg pot in a built-up roof due to the expansion of trapped moisture, water vapor, or other gases, between any of the layers of roofing or moppin

Loose raised spot on the gypsum board face as a result of an air space or void in the core

Blistering 0 likes

During firing of ceramic tile, the creation of enclosed or broken macroscopic vesicles or bubbles in a body, glaze, or other coating

Bulging of the finish plaster coat as it separates from the basecoat; the resulting protuberances are often called Turtle Backs

Forming of bubbles on surface of paint or varnish film, generally due to moisture behind the film or excessive heat

Blisters 0 likes

Cloudy or milky-looking raised spots on finished surfaces

Protrusions on the finish coat of plaster as a result of applying an overly damp base coat or troweling too early

Block 0 likes

Building split into separate functional parts; distinctive part of a building or structure

Rectangular area of land in a town or city

Block Coating 0 likes

See Transition Primer

Block Dampproofing 0 likes

Applying a water-resistant material to the surface of a concrete or masonry block to stop transfer or absorption of water or moisture; see Dampproofing

Block Demolition 0 likes

Tearing down a block wall

Block Grout 0 likes

Mortar mixes employed in block walls to fill voids and joints

Block Out 0 likes

Mounting a box or barrier in a foundation wall to stop the concrete from entering an area; foundation walls are sometimes blocked to enable mechanical pipes to pass through the wall, to install a crawl space door, and to depress the concrete where a garage door is located

Block Plane2 likes

Woodworking hand tool used for final smoothing

Block Sequence 0 likes

Combined longitudinal and buildup progression for a continuous multiple-pass weld where separated lengths are totally or partly built up in cross-section prior to intervening lengths being deposited; see Backstep Sequence

Block Vent 1 like

Opening outlet or inlet for air in a block structure

Block, Angle 0 likes

Tile square to change the direction of the trim

Block, Concrete 0 likes

Hollow concretemasonry unit composed of a composite material of sand, cement, coarse aggregate, and water

Block, Glass 0 likes

A hollow masonry unit made of glass

Block, Granite 0 likes

Masonry unit consisting of a tough natural igneous rock

Block, Splash 0 likes

Small masonry block positioned in the ground under a downspout to obtain roof drainage and stop stagnant water or soil erosion

Block, Terminal1 like

Decorative end of a block structure

Blocked Diaphragm 0 likes

Diaphragm with all sheathing edges not on framing parts are secured and connected to wood blocking

Blocked, Door Blocking 0 likes

Wood shims used between the door frame and the vertical structural wall framing elements

Blocked, Rafters 0 likes

Short 2 feet by 4 feet used to keep rafters from twisting at the ends and at mid-span

Blocking 0 likes

Small wood pieces tightly positioned between joists, studs, or rafters in a building frame to stabilize the structure, prevent fire transfer, preserve insulation, or provide a nailing surface for finish materials

System of combining two brick walls that were not built simultaneously; the two adjoining or intersecting walls are joined by offset and overhanging blocks of courses of bricks

Bloom 0 likes

Whitening; blushing; cloudy appearance on varnished surface

Clouding or fogging of paint film, generally due to reactive materials in paint film connecting with dust, oil, gases in air or soluble particles in rain

Blots 0 likes

Marks or stains on the tile face

Blow 0 likes

Large paper area separated from the core during manufacturing in gypsum board; seen as a large swollen blister or a full loose paper sheet

Blow Back 0 likes

Rebound of atomized sprayed substance

Blown-In Insulation 0 likes

Loose cellulose insulation placed in an attic, crawl space, or wall by a blowing machine

Blowout 2 likes

Concrete form giving way

Blowtorch1 like

Gasoline torch employed in burning off paint film by seasoned painters

Blue Lead 0 likes

Bluish-gray lead sulphate that prevents rust

Blue Print 0 likes

Copying method used for architectural drawings to describe the drawing of a structure prepared by an architect or designer

Blue Stain 0 likes

A blue or grey discoloration of the sapwood as a result of the growth of certain dark-colored fungi on the surface and interior of wood

Blue Stake 0 likes

When a utility company comes to the job site, locates and spray paints the ground or installs small flags to display the location of their underground service; also called Utility Notification

Blue-Tops 0 likes

Surveyor’s stakes marked with a blue lumber marking crayon

Blueprint 2 likes

Construction drawing

Bluestone 0 likes

Dark-green to blue-gray sandstone, used in thin slabs to pave surfaces for pedestrian traffic

Blunging 0 likes

Wet agitation process of blending or suspending ceramic material in liquid

Blushing 0 likes

Finish that takes on white or grey cast during the drying period generally due to the precipitation or separating of part of the solid content of the material, creating an opaque appearance

Applied to lacquer when it becomes flat or opaque and white on drying; usually occurs when applied in a humid atmosphere

BM 0 likes

Bench mark