Pipe Problems Solved! How Roof Blocks Prevent Roof Damage
Installing pipes on rooftops often leads to damage of the roof membrane. Penetrations made to route pipes compromise waterproofing while point loads from heavy pipes can overload and puncture the membrane. Thermal expansion and vibration transmitted through pipework further strains roofing systems over time. Roof blocks offer an elegant solution that supports pipes without damaging the roof.
Roof blocks are adjustable pipe supports that provide a non-penetrating attachment point for pipes and mechanical equipment on flat rooftops. They distribute weight to avoid concentrated loads, absorbing vibration and allowing movement from expansion and contraction. Roof blocks eliminate the need for flashings, pitch pockets, and membrane repairs required with traditional pipe hangers.
Why Pipes Can Damage Roofs
Cutting openings in a roof membrane to install pipe hangers penetrates the waterproof barrier, requiring extensive flashing and sealing to prevent leaks. Point loads from heavy pipes resting on the roof can also cause indentations and punctures. The roof membrane wears quickly at attachment points for pipe stands due to wind sway and vibration.
Thermal expansion and contraction of pipes through temperature changes creates strain on fixed attachment points. This can loosen roof fasteners, causing cracks and holes. Without room for movement, pipes may buckle and joints can pull apart. Expansion strain also risks damaging equipment attached to the piping network.
How Roof Blocks Prevent These Problems
Roof blocks support piping without penetrating the membrane, eliminating leak risks from improper flashing and sealing. They have a broad surface area to distribute weight and avoid concentrated point loads that damage roofing.
The adjustable design accommodates thermal expansion and contraction by allowing pipes to move horizontally. Neoprene cushions also dampen vibration transmission to the roof. Roof blocks absorb pipe movement and sway to prevent loosening of membrane fasteners.
Types of Roof Blocks for Piping
There are several types of roof blocks designed for varied pipe sizes, roofing substrates, and load capacities.
Polymer Roof Blocks
Blocks molded from polycarbonate and engineering polymers provide excellent weathering resistance. They remain stable through temperature extremes, ultraviolet radiation, and do not corrode. Polymer blocks feature multiple height adjustment holes and high load ratings up to 500 lbs.
Composite Blocks
Reinforcing polymers with fibers produces strong composite blocks for heavy pipes and mechanical equipment. Glass fiber and carbon fiber reinforcement provides exceptional strength for bearing static and dynamic loads over 500 lbs. The attached base plate provides a secure grip on the roof.
MIRO Pillow Blocks
These polypropylene blocks are UV-stabilized and fixed at standard pipe heights for level rooftops. The arched design provides optimal load distribution. MIRO blocks do not penetrate the roof and resist weathering and chemicals.
Key Features and Benefits of Roof Blocks
Adjustable Height
Having variable height settings allows fitting blocks to different pipe dimensions and roof slopes. This avoids pipe strains from improper elevations. Simply aligning the bolt holes sets the required height.
High Load Capacity
Industrial strength polymers and composite materials allow roof blocks to bear 50 to over 500 lbs in weight. This safely accommodates heavy pipes, electrical conduit, mechanical equipment, water tanks, and other rooftop structures.
Accessories
Some roof blocks can be used with clamps, roller saddles, anchor brackets, and other accessories for attaching pipes. This allows customizing the blocks to any piping configuration.
Choosing the Right Roof Blocks
Consider the type of piping and mechanical equipment being supported to determine optimal roof blocks. Calculate maximum load requirements and factor in the roof slope and layout.
Select appropriate height range and accessory compatibility. For outdoor installation, ensure UV-resistance. Compare reputable brands like Anvil, Erico, and PHP blocks tailored for your application.
Roof Blocks Applications
Roof blocks safely support:
- Plumbing pipes, vents, drains
- Electrical wiring and conduit
- AC condenser and chiller lines
- Gas pipes and valves
- Solar hot water piping
Any rooftop piping that would otherwise require penetrating flashings can be mounted on roof blocks. They are easy to install, adjustable, and provide a maintenance-free anchoring solution.
Roof blocks deliver a simple and effective method to install pipe supports on flat roofs without membrane damage. Their adjustable design accommodates movement while providing durability and high load capacity. With roof blocks, piping can be properly supported on rooftops without leaks, punctures, or loose attachments caused by point loads and vibration.