About Us

Our Objective what we aim

The exterior encloses of buildings, especially window, door, curtain wall, skylight and building cladding must resist weather conditions as withstand wind and rain.

To compromise overall building performance and adversely affect the performance of other components.

To enhance the quality of the of workmanship, installation technique, the quality of the adjacent joints and transportation components of newly install facades.

our objective
wtt services purpose n scope

Purpose and Scope Our Commitment

The field test to determine the resistance to water leakage of framing joints, glazing joints and seals, to remain permanent water tight.

The purpose of the test to enhance the joint is defined as a discontinuity between sections profile, materials, components or assemblies.

The test should be initial stage so that be able to define and exposed the systems and workmanship proposed/ designed.


The Details It's what we do best

Performance Requirement

The test is consider failed when there is an onset of leakage detected. The leakage is defined as being any appearance of uncontrolled water.

Designated Area

The designated areas should be representative to windows or doors that’s typical constructed. The S.O. or client’s representative should designate the area of the windows or doors to be tested and inspected.

Test Equipment’s / Apparatus

The equipment comprises compressor (wind generating device) connected to 2 feeders, each 0.86-m long with 2 rows of nozzles. Air is blow through one row of nozzles while water is supplied to another row of nozzles through a hose, attached with a control valve and a pressure gauge to adjust the water flow.

Test Methodology

A steady spray test pressure about 240Pa incorporating or to simulate wind – driven rain is applied on the installed window to wall joints. The water sprays directed at the joint and perpendicular to the face of the wall. The indoor side of the window and wall is checked for leakage within 10-minute test period.

Company Profile

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