Description
Why Doon Projects Prefabricate Homes are better?
- DoonProjects does more than 50% of the work in the factory, due to which there is not much disturbance on the site and the delivery time is reduced considerably.
- DoonProjects have readymade material, which you can see physically at the workshop, which includes walls, windows, Rain Protector / Awnings for door & windows, which we can assemble in a very short time and give you a prefab house.
- DoonProjects use all the material which is branded, even the paint, glass and silicone for finishing are of high quality.
- DoonProjects do construction as per Vaastu and are better in sun-light, ventilation, insulation planning.
- DoonProjects delivers 3 to 4 projects in a month and has made more than 50 projects, we have learned a lot from our experience which makes our work better.
FAQ about Prefabrication
- What is the life of houses made of Bison Board?
Upto 20 Years depends on the exposure and thickness of material. Bison/cement fiber is not a waterproof product, it should not be exposed directly, it can be applied only where there is upper protection, we have to take a little shed out. - Don’t you feel too hot in these houses?
It has thermal insulation which does not allow the temperature to enter and is a very effective solution. In this we also use a gypsum ceiling separately which maintains normal room temperature. - Do you work outside from Dehradun?
We undertake projects outside Dehradun on certain conditions which are as follows 1) There should be proper arrangement for accommodation of boys, proper electricity with backup and water at the site. 2) All the carriage from Dehradun to the site will have to be borne by the party only. 3) Foundation and Underground Tanks will be done by the party itself at the site with the help of local labour. 4) Whatever will be the distance in km from Dehradun, Rs. 1 per km will be extra chargeable on our base price.
Prefab Construction — Do’s & Don’ts
✅ DO’s
- Use quality structural mild steel with a minimum 18 SWG thickness and suitable structural grade.
- Follow approved structural drawings for fabrication and installation, including electrical and plumbing layouts.
- Maintain proper structural spacing: columns at a maximum of 12 ft, frames at a maximum of 2 ft, and purlins at a maximum of 3 ft, as per the approved design.
- Apply proper anti-rust treatment/Red Oxide Primer (ROP) followed by enamel finishing paint on MS structures.
- Provide adequate insulation for thermal comfort, including minimum 12 mm insulation where specified and 50 mm Rockwool insulation.
- Use good-quality materials:
minimum 8 mm cement/fiber boards, minimum 0.50 mm roofing sheets, and suitable fasteners of minimum 10 mm, as per structural requirements. Provide proper waterproofing using SBR/membrane systems and flashing at roofs, corners, wall joints, and other vulnerable areas. - Ensure adequate ventilation in every room, with a minimum recommended opening of 2.5 ft × 1.5 ft, along with sufficient natural lighting.
- Ensure that openable windows, ventilators, or mesh/jali doors together provide an openable area of at least 15% of the room’s total floor area. This minimum provision helps maintain air circulation and indoor temperature control, even after adequate thermal insulation has been provided.
- Ensure proper chemical earthing and safe protection of concealed electrical wiring.
- Check level, plumb, dimensions, and alignment at every stage of fabrication and installation.
- Properly seal all joints, corners, openings, and service penetrations to prevent water and air leakage.
- Provide an effective rainwater drainage system and ensure water does not accumulate around the structure or foundation.
- Maintain a minimum clear internal height of 9.5 ft in all habitable rooms, measured from the finished floor level to the finished ceiling. This ensures comfortable headroom and sufficient clearance for ceiling fan installation and operation.
❌ DON’Ts
- Don’t compromise on steel thickness, material quality, or structural
strength merely to reduce cost. - Don’t use low-quality, damaged, or unsuitable
panels, roofing sheets, boards, or fasteners. - Don’t install the prefab structure without verifying the
foundation, dimensions, level, and alignment. - Don’t make unauthorized cuts, drilling, welding, or modifications
to structural members. - Don’t leave exposed MS steel without proper
anti-corrosion treatment and protective coating. - Don’t ignore roof slope, flashing, waterproofing, or rainwater drainage.
- Don’t use ordinary screws where
approved self-drilling or structural fasteners are required. - Don’t add heavy loads, equipment, or modifications beyond the
designed structural load capacity. - Don’t skip joint sealing, flashing, and waterproofing
at critical connection points. - Don’t assume prefab means temporary or low-quality construction.
A properly engineered prefab structure can deliver strength, durability,
precision, and significantly faster construction.
Important Note
All dimensions, thicknesses, spacing, material specifications, and
structural requirements should be
verified against the approved structural design, site conditions,
applicable codes, and project requirements
before construction.
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