Roof Slope Draining Toward NE
The pitched roof must slope to drain rainwater toward the NE, N, or E. Rain is h
Local term: रूफ ड्रेनेज — गटर स्लोप / डाउनपाइप डायरेक्शन (Roof Drainage — Gutter Slope / Downpipe Direction)
Modern roofing can accommodate any drainage direction. NE drainage aligns well with the general principle of placing heavy infrastructure (HVAC, tanks) at SW and keeping NE light and open. Gutter and downpipe placement toward NE is a zero-cost design decision. Rainwater harvesting tanks at NE serve both Vastu and sustainability.
Source: All classical texts; modern roofing standards
Unique: Zero-cost design decision — gutter direction is a choice, not a cost.
Roof Slope Draining Toward NE
Architectural diagram for Roof Slope Draining Toward NE
The Rule in Modern Vastu
Ideal
NE, N, E
Gutters and downpipes toward NE with rainwater harvesting, per modern Vastu consensus integrating classical prescriptions with contemporary building practice — the architect must verify compliance for optimal results.
Acceptable
N, E
Drainage toward N or E individually.
Prohibited
SW, S, W
A roof draining toward the south, south-west, or west sends the heaven's water — the vehicle of Prana — toward the zone of Yama (death) and Nirrti (decay). The dwelling rejects the blessing from above and channels it toward the dark quadrant. This is Vrishti Viparyaya Dosha (rain-reversal defect) — the most precious resource from the sky is wasted on the wrong direction.
Sub-Rules
- Pitched roof slopes drain rainwater toward N, NE, or E▲ Major
- Roof drains primarily toward SW, S, or W▼ Critical
The pitched roof must slope to drain rainwater toward the NE, N, or E. Rain is heaven's Prana carried by water — it must flow toward the Ishaan (NE) gateway where the dwelling receives cosmic energy. SW or S drainage is Vrishti Viparyaya Dosha — the dwelling rejects its divine consecration from above and sends it to the domain of decay.
Common Violations
Roof slopes draining primarily toward SW
Traditional consequence: Vrishti Viparyaya Dosha (rain-reversal defect) of the highest severity. Heaven's water — the vehicle of Prana — is sent to the domain of Nirrti. Each rainfall worsens the defect. The dwelling actively rejects its divine consecration. Financial loss, health decline, and spiritual blockage accumulate with every rain.
Roof slopes draining toward S or W
Traditional consequence: Partial Vrishti Viparyaya Dosha. Water reaching Yama (S) or Varuna (W) quarters misses the beneficial NE gateway. While less severe than SW drainage, the dwelling still misdirects heaven's blessing away from the energy reception zone.
How Other Traditions Compare
Relative to Modern Vastu
Vedic Vṛṣṭi Pravāha — rain flow as divine energy transfer — distinctive to Vedic practice per the Brihat Samhita and Vishwakarma Prakash.
Wada central Chowk — internal courtyard as NE drainage intermediary.
Tamil Deiva Thanneer — rain as divine water requiring NE direction.
Telugu Eeshanyam Pravāhaṁ — NE flow at temple and domestic scale.
Jain Ishānya Jala Vāhana — precision NE drainage — distinctive to Hoysala-Jain practice per the Manasara and Aparajitapriccha.
Kerala Naḍumuttaṁ — monsoon courtyard as NE drainage system.
Gujarati Divya Jala Mārga — divine water path through the dwelling.
Bengali monsoon alignment — Vastu and flood management converge.
Kalinga Vimana NE drainage — temple precision — distinctive to Kalinga practice per the Shilpa Prakasha and Kalinga temple texts.
Punjabi Chhatt dī Nīhar — roof drainage as essential practice.
Terms in Modern Vastu
Universal:
Remedies & Solutions
Structural correction per Modern building proportion guidelines
Modern VastuFor new construction, design the pitched roof to slope primarily toward NE, N, or E — this is the most fundamental roof design decision
If the existing roof drains to SW or S, install gutters and downpipes that redirect all collected water to the NE corner of the plot
Add a secondary roof or canopy over the NE area that catches rain directly and channels it to a NE collection tank or garden
Install rainwater harvesting at the NE corner — even if the roof drains elsewhere, collecting and storing water at NE partially compensates
Remedies from other traditions
Structural correction per Vedic building proportion guidelines
Vedic VastuStructural correction per Maharashtrian building proportion guidelines
HemadpanthiClassical Sources
“The Chhadya (roof) shall shed Varsha Jala (rainwater) toward Ishaan, Uttara, or Purva. The sky's blessing descends upon the Gruha and must flow toward the Prana Dwara. A Chhadya draining toward Nairitya sends heaven's gift to the domain of Nirrti — the dwelling rejects its own consecration from above.”
“Varahamihira declares: the Vrishti Jala (rain-water) that falls upon the Gruha Chhadya (house roof) shall flow toward Ishaan Disha (NE direction). Rain is Indra's Prasada (blessing) — it must be received at the Ishaan where Guru presides. A dwelling that sends Indra's water toward Yama's quarter offends both Devas.”
“The Kooda Meippara (roof surface) shall slope toward Vadakkukilakku (NE). The Mazhai Neer (rainwater) is Deiva Thanneer (divine water) — it must reach the Ishaan Moolai (NE corner) where the earth receives heaven's blessing. A Meippara draining toward Thennmerku (SW) wastes the Deiva Thanneer on the Nirrti zone.”
“Vishvakarma commands: the Chhappar (roof) shall incline toward Ishaan. Every Varsha (rain) is a Deva-Abhisheka (divine anointment) of the Gruha. The Chhappar channels this Abhisheka toward the Ishaan Dwar where Guru receives it. SW drainage is Deva-Ninda (divine insult).”
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