Expansion Joint and Penetration Sealing via Rope Access.

Think Access seals expansion joints, service penetrations, cable entries and structural movement joints in building envelopes using IRATA rope access. We restore weathertight integrity at these high-risk detail locations without the need for scaffold.

Scope at a glance

Sealed elements

Expansion joints · Movement joints · Pipe, cable & duct penetrations · Conduit

Products

Silicone & polyurethane · Movement joint systems · Pipe collars & seals · Lead & metal flashings

Workmanship

Old sealant removed · Faces prepared · Product matched to movement · Integrated with waterproofing

What we do

Two vulnerable points

Expansion joints and service penetrations are among the most vulnerable points in any building envelope. Expansion joints must accommodate structural movement while remaining weathertight a demanding requirement for the sealing product and system while service penetrations create holes through the waterproofing layers that must be sealed to prevent water ingress around the service.

Expansion joint sealing

We seal expansion joints using products appropriate to the anticipated movement, including silicone, polyurethane and specialised movement joint systems. Joint width, anticipated movement, substrate condition and environmental exposure are all considered in product selection, and old failed sealant is fully removed and the joint faces prepared before new sealing is applied.

Service penetration sealing

Service penetration sealing uses products appropriate to the penetrating service pipe, cable, duct or conduit and to the waterproofing system at the penetration. We use pipe collars, liquid-applied sealants, lead or metal flashings and proprietary penetration seals, depending on the application.

Integrated with the waterproofing

The completed seal is integrated with the adjacent waterproofing layer to prevent water tracking along the penetrating service, so the repair forms a continuous part of the envelope rather than a separate patch.

Why Think Access

Expansion joints and penetrations that leak are a disproportionate source of water damage relative to their area. Getting the details right matters Think Access focuses on these vulnerable points.

F.A.Q’s

We use proprietary pipe penetration collars that are fully bonded and welded to the membrane, providing a sealed collar around the penetrating service. These are the most reliable solution for single-ply applications.

Yes. Concrete expansion joint sealing requires products capable of accommodating significant movement. We use polyurethane and polysulphide sealants, bituminous joint fillers and proprietary metal joint covers depending on the joint type and exposure.