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Concrete Foundations
Harp Legacy Concrete
Who we are
• Started operation July 2005
• Partnership Kenny Harp & Ralph Matera
• Over 60 years combined construction &
engineering experience
• Licensed general contractor, licensed
professional engineer
What we do
• Turnkey reinforced concrete foundations for
residential and small commercial buildings
• We provide the following services:
– Excavation (optional)
– Reinforced footings
– Reinforced walls
– Waterproofing
– Backfilling (optional)
– Flatwork
Why Concrete foundations?
• Poured walls have been around for years
• New to area for residential foundations
• Significant growth in most major SE cities
• Superior product for basement walls
Advantages of Concrete
• IRC limit 12 inch masonry to 4 ft fill without reinforcement and full grout
• 10 inch un-reinforced concrete allowed to 8 foot fill, addition of rebar increases depth
• Concrete foundation monolithic less prone to crack and settle
• 5 times stronger than masonry
• Cost comparable to grouted masonry
• Concrete watertight provides for dry basement
How we do it
• Owner provides excavated site or HLC
can perform
• Form footings above grade
– Integral perimeter drain
– Integral radon collection system
– Two rows #4 rebar
– Electrical ground wire
How we do it (cont.)
• All footing pumped with 3000 psi concrete
• Vertical steel rebar embedded in footings
How we do it (cont.)
• All footing pumped with 3000 psi concrete
• Vertical steel rebar embedded in footings
• Aluminum panels are erected to form
cavity of wall
How we do it (cont.)
• All footing pumped with 3000 psi concrete
• Vertical steel rebar embedded in footings
• Aluminum panels are erected to form
cavity of wall
• Brickledges, beam pockets, door openings
are placed in forms
• Walls pumped with 3500 psi concrete
How we do it (cont.)
• Anchor bolts are set
• Walls are stripped
How we do it (cont.)
• Anchor bolts are set
• Walls are stripped
• Waterproofing is performed using either:
– Tremco Tuff N Dry system with 30 year dry
basement warranty
– Tremco Warm N Dry system with 15 year dry
basement waranty
How we do it (cont.)
• The whole process is completed in about a
week
• Backfilling of site can be performed after 7
-10 days
• Begin framing on a clean backfilled safe
worksite!
Capabilities
• System capable to form over 300 foot of
wall in one pour
• Basements 9, 10, 12 feet deep
• Brickledge as required
• 10 inch true wall thickness standard any
wall thickness capable
• Retaining walls to 12 feet high
• Turnkey flatwork
What If?
• Haven’t convinced you yet?
• What if a 7,000 lb boulder slid down bank from 10 feet high and hit the middle of a 12 foot high straight masonry wall that was 50 feet long?
• You’d start all over again after cleaning up the mess!
• Well, that’s exactly what happened to one of our walls
Sub basement walls
• Difficult to do properly with a masonry
foundation
• This is where a concrete wall excells
Other services
• Retaining walls
• All flatwork (basements, garages,
driveways) all turnkey
Summary
• One contractor, one check gets you to
framing
• Fast quality construction
• Comparable in cost to filled and reinforced
block wall
• Walls can be constructed year round
