WEERA chartered architects

WEERA chartered architects Simplicity creates the uniqueness..

"Seamless Extension, Contemporary Tropical Living”❤An 1,800 sq.ft. single-storey studio addition to an existing residenc...
03/09/2026

"Seamless Extension, Contemporary Tropical Living”❤
An 1,800 sq.ft. single-storey studio addition to an existing residence in Kadawatha, created for a young couple. The design blends contemporary forms with natural materials, landscaped courtyards and generous openings to create a relaxed, light-filled home.🏡

Designed by Archt. Rajika Weerasekara (AIA)SL
Contact : 077 790 5702
©All Rights Reserved.

Timeless Tropical Living..❤A refined 3,500 Sq.Ft. contemporary residence designed to embrace modern tropical living. The...
19/08/2026

Timeless Tropical Living..❤
A refined 3,500 Sq.Ft. contemporary residence designed to embrace modern tropical living. The architecture combines clean contemporary forms with warm timber accents, natural stone textures, expansive glazing, and lush landscaping.

The open and bright interiors are thoughtfully connected with the outdoor spaces, creating a seamless flow between living areas and nature. Generous openings, shaded spaces, and carefully considered landscaping enhance natural light, ventilation, and overall comfort...❤

📍 Location: Nugegoda, Sri Lanka

Designed by Archt. Rajika Weerasekara(AIA)SL
Contact: 077 790 5702
© All Rights Reserved.

Project: Modern Tamil Courtyard HouseLocation: WattalaA thoughtfully crafted single-storey residence inspired by the tim...
10/08/2026

Project: Modern Tamil Courtyard House
Location: Wattala
A thoughtfully crafted single-storey residence inspired by the timeless elegance of traditional Tamil architecture, seamlessly blended with contemporary tropical design. The home features a welcoming open courtyard, handcrafted terracotta elements, warm timber finishes, and naturally ventilated living spaces that celebrate culture, light, and nature. Every detail has been carefully designed to create a peaceful sanctuary that reflects heritage while embracing modern family living..❤

Designed by Archt. Rajika Weerasekara (AIA)SL
Contact: 077 790 5702
© All Rights Reserved.

29/07/2026

8 Perches. Endless Possibilities. ❤
Nestled in Piliyandala, this home proves that exceptional design is all about smart planning. Thoughtfully designed for a compact 8-perch plot, it features efficient space management, a cozy double-height interior filled with natural light, and a serene backyard garden that brings nature into everyday living..❤

Designed by Archt. Rajika Weerasekara (AIA)SL
Contact: 077 790 5702
© All Rights Reserved.

8 Perches. Endless Possibilities. ❤Nestled in Piliyandala, this home proves that exceptional design is all about smart p...
29/07/2026

8 Perches. Endless Possibilities. ❤

Nestled in Piliyandala, this home proves that exceptional design is all about smart planning. Thoughtfully designed for a compact 8-perch plot, it features efficient space management, a cozy double-height interior filled with natural light, and a serene backyard garden that brings nature into everyday living..❤

Designed by Archt. Rajika Weerasekara (AIA)SL
Contact: 077 790 5702
© All Rights Reserved.

Designed for modern tropical living in Mirisswatta, this residence combines clean architectural lines, natural materials...
27/07/2026

Designed for modern tropical living in Mirisswatta, this residence combines clean architectural lines, natural materials, and light-filled spaces to create a warm, elegant home that seamlessly connects with nature..❤

Designed by Archt. Rajika Weerasekara (AIA)SL
Contact: 077 790 5702
© All Rights Reserved.

26/07/2026

At WEERA Chartered Architects, we believe every project deserves a well-structured journey. From understanding your vision and developing the design to preparing technical documentation and supporting the construction process, we're committed to delivering architecture with precision, creativity, and care...❤️

Ongoing Construction at Dompe..

Designed by Archt. Rajika Weerasekara (AIA)SL
Contact: 0777905702
©️All Rights Reserved..

This renovation and extension project in Dompe transforms an existing single-storey house into a refined modern tropical...
09/07/2026

This renovation and extension project in Dompe transforms an existing single-storey house into a refined modern tropical residence. Carefully balancing preservation with innovation, the design combines the charm of the original home with contemporary architecture, creating spacious, light-filled interiors and a seamless connection to the surrounding landscape..❤

Designed by Archt. Rajika Weerasekara (AIA)SL
Contact : 077 790 5702
© All Rights Reserved.

සිවිල් ඉංජිනේරු දැනුම ජීවිතයට..Civil Engineering Insights, knowledge for Life...(Article series)Article 01භූමිය සහ මහපොළ...
06/07/2026

සිවිල් ඉංජිනේරු දැනුම ජීවිතයට..
Civil Engineering Insights, knowledge for Life...
(Article series)

Article 01
භූමිය සහ මහපොළව - සටහන 14
(සටහන 13 පළවෙනි කමෙන්ට් එකේ)

Embankment Dam සහ Piping

Embankment Dam (පස් බැම්ම) සැලසුම් කරන විට, පස් තෝරාගැනීම සහ බැම්මේ හැඩය නිර්මාණය කරන්නේ ජලය පස තුළින් ගලා යාමෙන් ඇතිවන හානි අවම කිරීමට හෝ සම්පූර්ණයෙන්ම වැළැක්වීමට ය.

ජලය වැඩි පීඩනයකින් (High Hydraulic Gradient) පස තුළින් ගලා ගියහොත්, පස හොඳින් compact කර නොමැති නම්, අභ්‍යන්තර ඛාදනය (Internal Erosion) සිදුවීමට හැකියාව තිබේ. මෙම ඛාදනය නිසා පස් අංශු ජලය සමඟ ගසාගෙන යාම සිදුවේ.
එවිට බැම්ම ඇතුළත හිස් ජල මාර්ග (channels) හෝ නාළ වැනි හිස් අවකාශ (pipes) සෑදීම සිදුවේ.
මෙමගින් බැම්මේ ශක්තිය සහ ස්ථායීතාව (stability) අඩු කරයි. මෙම ආකාරයේ අභ්‍යන්තර ඛාදනය Piping ලෙස හැඳින්වේ.

Central Core සහ Chimney Drain

Embankment Dam එකක ජලය පස තුළින් ගලා යාම (seepage) අඩු කිරීම සදහා අඩු permeability (ජලය අඩුවෙන් ගමන් කරන) පස් වලින් Central Core (මැද හරය) සෑදීම කරනු ලබයි.

Central Core එකේ ප්‍රධාන කාර්යය වන්නේ පස් බැම්ම හරහා ජලය ගලා යන ප්‍රමාණය අඩු කිරීමයි. ජල පීඩනයේ (Total Head) වැඩි කොටසක් මෙම Core එක තුළදීම අඩුවේ. Core එක ඉතා පටු නම් Hydraulic Gradient ඉතා වැඩි වේ. මෙහිදී ඇතිවිය හැකි අවදානම වන්නේ Core එක සහ එයට යාබද වැඩි permeability ඇති පස් අතර සීමාවෙන් (boundary) ජලය පිටවන විට,
අභ්‍යන්තර ඛාදනය (Erosion) හෝ Piping ඇති වීමයි. මෙම ගැටලුව වැළැක්වීමට Core එකේ පහළ (downstream) පැත්තේ Chimney Drain එකක් සවි කරනු ලැබේ.

මෙම Chimney Drain එකේ කාර්යයන් වන්නේ Filter එකක් ලෙස ක්‍රියා කර පස් අංශු ගසාගෙන යාම නවතාලීම, ජලය ආරක්ෂිතව පිටතට ගෙන යාම, බැම්මේ පහළ පැත්ත (downstream slope) වියළි (unsaturated) තත්ත්වයේ තබා ගැනීම සහ Piping සහ Internal Erosion ඇතිවීම වැළැක්වීමයි.

✍️ අරවින්ද වීරසේකර (Civil Engineer)

A Contemporary Tropical Residence | Wadduwa ❤Designed to embrace natural light, ventilation, and seamless indoor-outdoor...
27/06/2026

A Contemporary Tropical Residence | Wadduwa ❤

Designed to embrace natural light, ventilation, and seamless indoor-outdoor living, this contemporary tropical home blends clean architectural lines with warm natural materials. The double-height living space, expansive glazing, exposed timber ceiling, and lush landscaping create a calm and inviting atmosphere, perfectly suited to Sri Lanka's tropical climate.

Designed by Archt. Rajika Weerasekara (AIA)SL
Contact : 077 790 5702
© All Rights Reserved.

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Chapel Lane
Nugegoda

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